CN109761441A - A kind of processing method and processing device of landfill leachate - Google Patents
A kind of processing method and processing device of landfill leachate Download PDFInfo
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Landscapes
- Water Treatment By Sorption (AREA)
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Abstract
The invention discloses a kind of processing method and processing devices of landfill leachate, it is between the step of carrying out Biochemical pot bacteria metabolism effect processing to percolate and carrying out film process, it is disposed with the step of alkali tune, stripping, flocculation, precipitating, first filters pressing, absorption and secondary filters pressing are carried out to percolate, and be provided with after the step of carrying out film process hypochlorous acid receive depth removal ammonia nitrogen the step of, the processing load of film processing system can be greatly lowered, the treatment effect and efficiency of polluter are improved, while improving the service life of film processing system.In addition, by the way that each processing step is organically combined, effective removal Landfill Leachate Pollutants, each processing step residence time is short simultaneously, saves occupied area, improves treatment effeciency, and reduce cost, it is final to realize water body qualified discharge, form the landfill leachate treatment scheme of " economical and effective, technical feasibility ".
Description
Technical field
The present invention relates to technical field of sewage, the in particular to processing method and processing device of landfill leachate.
Background technique
In recent years, with China's urbanization and the quickening of process of industrialization and the expansion of population, application of city life garbage is generated
Amount sharply increases, and is increased every year with 8% ~ 10% speed, produces quantity of refuse daily per capita more than 1.1kg, seriously endangers nature ring
Border.Based on national conditions and Environmental Status, the major way of solid life refuse in city processing is to concentrate landfill disposal.Garbage loading embeading mistake
For organic pollutant at concentrations up to tens of thousands of mg/L are up to, ammonia nitrogen can reach thousands of mg/L in generated landfill leachate in journey,
Coloration is high, and distributes foul odour, has relatively high salt content, at the same generally the heavy metal classes substance containing higher concentration and
More pathogenic microorganisms.Therefore, it need to be handled to after meeting discharge standard, can just be discharged, it otherwise can be under circumferentially
Water, soil, surface water or other receiving water body environment generate serious destroy.
The technical method of processing landfill leachate is more at present, including physical-chemical process and bioanalysis, but is actually building
If or being found in operation, the generally existing construction of existing treatment process technology, operation and the excessively high problem of management cost；Another party
Face, country have formulated landfill leachate new standard GB16889-2008 again, and existing refuse leachate treatment technology is unable to satisfy
Standard requirement, qualified discharge.By taking relatively conventional leachate processing method at present as an example comprising first (or raw in Biochemical pot
Change pond) in some polluters (main removal in percolate was handled by metabolism 10 days or so of microorganism
COD(COD) and the indexs such as ammonia nitrogen), then by film processing system by its film separation system by dissolved salts, glue
The process that the polluters such as body, microorganism, organic matter are retained and keep water separated, to realize diafiltration to a certain extent
The processing of the polluter of liquid still handles the place of the corresponding polluter of percolate by the metabolism of microorganism
Manage efficiency (wherein the metabolism of microorganism needs 10 days or so, to reduce COD(COD as far as possible) and ammonia nitrogen
Etc. indexs, otherwise can be further exacerbated by the workload of film processing system) and effect it is relatively low, from the water outlet of Biochemical pot 1
The percolate of the preliminary treatment of pipe outflow still carries the pollution such as a large amount of ammonia nitrogen dissolved salts, colloid, microorganism, organic matter
Object, the normal processing load beyond subsequent film processing system, influences the treatment effect of the polluter of percolate, while can be to film
Processing system causes heavy corrosion and blocks and reduce the service life of film processing system 8.Therefore, seek " technology effectively, it is economical
It is feasible " processing scheme be China landfill leachate treatment project the most important thing, and at this stage percolate processing need
The important research and development project solved.
Summary of the invention
The main object of the present invention is to propose a kind of processing method and processing device of landfill leachate, it is intended to improve percolate
Treatment effeciency and quality save occupied area, and reduce processing cost.
To achieve the above object, the present invention proposes a kind of processing method of landfill leachate, includes the following steps:
S1, percolate to be processed is inputted into Biochemical pot and carries out bacteria metabolism effect 2 ~ 3 days, to remove in percolate
Most of pollutant based on COD, and so that organonitrogen compound is converted into ammoniacal nitrogen, while by part mineralized nitrogen at nitrous
Sour nitrogen；
S2, alkali tune tank will be inputted through Biochemical pot treated percolate, and the solid lime that predetermined amount is added is stirred, and makes to seep
The pH value of filtrate reaches 11 ~ 12；
S3, alkali tune treated percolate input stripping device is subjected to stripping processing, the ammonia in percolate is greatly lowered
Nitrogen concentration；
S4, stripping treated percolate is inputted into flocculation tank, and the ferrous sulfate solution and solid soda ash of predetermined content is added
So that the pollutant in percolate flocculates, to reduce the hardness of percolate and be adjusted to neutrality the pH of percolate, and through highly dense
After spending sedimentation basin precipitating, flocculate forms sludge, and supernatant is flowed out on potassium permanganate composites top；
S5, water-containing sludge will be formed by after flocculation sedimentation by the first plate and frame filter press of lower part spoil disposal end input, to aqueous dirt
Flocculate precipitate in mud is filtered for the first time, is squeezed, and is obtained compared with clear water body；
S6, the supernatant that potassium permanganate composites top is flowed out and the relatively clear water body that the first plate and frame filter press obtains input plus charcoal are stirred
Mix tank and the Powdered Activated Carbon of predetermined amount be added, with by powder electroless plating compared with remaining most COD in clear water body, again
Metal, ammonia nitrogen, and reduce coloration and stink；
S7, the water body containing Powdered Activated Carbon is inputted to the secondary filters pressing of the second plate and frame filter press progress, to the powder of adsorption saturation
Active carbon is filtered, squeezes, and forms clear water；
S8, clear water is inputted into film processing system, to remove remaining overwhelming majority pollutant in clear water；
S9, film processing system treated clear water inputs to sodium hypochlorite agitator tank, and the hypochlorous acid that predetermined content is added is received pair
Remaining ammonia nitrogen carries out depth removal processing, completes the processing of percolate, so that clear water is reached discharge standard and can discharge outward.
The present invention also proposes a kind of processing unit of landfill leachate, comprising:
Biochemical pot, the Biochemical pot is interior to be equipped with microorganism fungus kind, for carrying out micro- life to the percolate to be processed inputted in it
Object metabolism；
The water intake end of alkali tune tank, the alkali tune tank is led to by the water outlet of pipeline and Biochemical pot, for handling through Biochemical pot
And the lime for inputting its interior percolate and the predetermined amount being added in it is stirred, and the pH value of percolate is made to reach 11 ~ 12；
The water intake end of stripping device, the stripping device is led to by the water outlet of pipeline and alkali tune tank, is handled simultaneously through alkali tune
The percolate inputted in it carries out stripping processing, the ammonia nitrogen concentration in percolate is greatly lowered；
The water intake end of flocculation tank, the flocculation tank is led to by the water outlet of pipeline and stripping device, can make to handle simultaneously through stripping
Ferrous sulfate solution and the solid soda ash flocculation for inputting the pollutant in the percolate in it and the predetermined content being added in it are anti-
It answers, to reduce the hardness of percolate and be adjusted to neutrality the pH of percolate；
Potassium permanganate composites, the water intake end of the potassium permanganate composites and the water outlet of flocculation tank are led to, and are made in landfill leachate
Flocculate precipitate to form sludge, potassium permanganate composites top flow out supernatant.
The water intake end of first plate and frame filter press, first plate and frame filter press is logical by the spoil disposal end of pipeline and potassium permanganate composites
Even, the water-containing sludge inputted in it filtered for the first time, squeezed, obtained compared with clear water body；
Add charcoal agitator tank, described plus charcoal agitator tank water intake end passes through pipeline and potassium permanganate composites top-end water-outlet end, the first plate
The water outlet of frame filter press is led to, and is stirred to the relatively clear water body inputted in it and the Powdered Activated Carbon that predetermined amount is added, with
By powder electroless plating compared with remaining most COD, heavy metal, ammonia nitrogen in clear water body, and reduce coloration and stink；
The water intake end of second plate and frame filter press, second plate and frame filter press is led to by pipeline with charcoal agitator tank is added, to input
The water body containing Powdered Activated Carbon in it carries out secondary filters pressing and forms clear water；
The water intake end of film processing system, the film processing system is led to by the water outlet of pipeline and the second plate and frame filter press, right
The clear water inputted in it carries out film filtration treatment；And
The water intake end of sodium hypochlorite agitator tank, the sodium hypochlorite agitator tank is logical by the water outlet of pipeline and multistage membranous system
Even, the clear water of film filtration treatment and input is received with the hypochlorous acid for the predetermined content being added in it and reacts, to remaining ammonia nitrogen
Carry out depth removal processing.
Technical solution of the present invention is carrying out Biochemical pot bacteria metabolism effect processing to percolate and carries out film process
System processing the step of between, be disposed with to percolate carry out alkali tune, stripping, flocculation, precipitating, first filters pressing, absorption and
The step of secondary filters pressing, and be provided with after the step of carrying out film process hypochlorous acid receive depth removal ammonia nitrogen the step of,
In, the pH value of percolate is reached 11 ~ 12 in alkali tune tank；In stripping device to percolate carry out stripping processing and significantly
Reduce the ammonia nitrogen concentration in percolate；The pollutant in percolate is set to flocculate in flocculation tank, to reduce the hardness of percolate
And the pH of percolate is adjusted to neutrality；The flocculate in percolate is precipitated in sedimentation basin, and flows out supernatant；In sheet frame pressure
The flocculate precipitate to precipitate is filtered for the first time in filter, is squeezed, is obtained compared with clear water body；Adding charcoal agitator tank and is being added
The Powdered Activated Carbon of predetermined amount simultaneously adsorbs supernatant and compared with remaining most COD, heavy metal, ammonia nitrogen in clear water body, and reduces
Coloration and stink；Secondary filters pressing is carried out to water body in plate and frame filter press, the Powdered Activated Carbon of adsorption saturation is filtered, is pressed
It squeezes, forms clear water, clear water input film processing system is then subjected to film filtering again, the processing of film processing system can be greatly lowered
Load improves the treatment effect and efficiency of polluter, meanwhile, the machine that heavy corrosion is caused to membranous system can be greatly lowered
Rate, to improve the service life of film processing system.It is effective to remove percolate dirt by organically combining each processing step
Object is contaminated, while each processing step residence time is short, save occupied area, improves treatment effeciency, and reduce cost, it is final to realize
Water body qualified discharge forms the landfill leachate treatment scheme of " economical and effective, technical feasibility ".
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the processing unit of landfill leachate of the present invention；
Fig. 2 is the flow chart of the processing method of landfill leachate of the present invention；
Fig. 3 is the main view of Biochemical pot；
Fig. 4 is the top view of Biochemical pot；
Fig. 5 is cross-sectional view of the Fig. 4 along the direction A-A；
Fig. 6 is cross-sectional view of the Fig. 4 along the direction B-B；
Fig. 7 is the main view of stripping device；
Fig. 8 is the main view after stripping device is splitted；
Fig. 9 is the top view after cabinet is splitted；
Figure 10 is the enlarged detail view of the C portion of Fig. 9.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
It is to be appreciated that if related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after, top,
Bottom, inside and outside, vertical, transverse direction, longitudinal direction, counterclockwise, clockwise, circumferentially, radially, axially ...), then directionality instruction is only used
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
It, should " first " or " the in addition, if relating to the description of " first " or " second " etc. in the embodiment of the present invention
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of processing method of landfill leachate.
In the embodiment of the present invention, as shown in Fig. 1 to 10, the processing method of the landfill leachate includes the following steps:
S1, by percolate to be processed (or percolate stoste, pH are 8 ~ 9) input Biochemical pot 1 and microorganism new old generation is carried out
Thank to effect 2 ~ 3 days, to remove in percolate with COD(COD) based on most of pollutant, and make organic nitrification
Object is converted into ammoniacal nitrogen, and (ammoniacal nitrogen refers to nitrogen existing for two kinds of concrete forms of ammonium ion and ammonia, in ammonium hydroxide, ammonium hydrogen carbonate
Nitrogen), while by part mineralized nitrogen at cultured water.
Specifically, percolate to be processed is inputted into Biochemical pot 1 and carries out the step of bacteria metabolism acts on 2 ~ 3 days
In S1, the life including the bred formation of microorganism fungus kind by being attached on the biozone being from top to bottom set in Biochemical pot 1
Change reaction film and bacteria metabolism effect, and the mistake being aerated upwards toward percolate from 1 bottom of Biochemical pot are carried out to percolate
Journey.Wherein, by the contact area of microorganism fungus kind and percolate can be improved down toward the biozone of lower setting, aeration can be to percolate
In microorganism fungus kind oxygenation, to improve the growth and breeding speed of microorganism fungus kind, to improve to the processing speed of percolate,
Preferably remove the polluters such as COD and the ammonia nitrogen in percolate.It can choose ground, the gas liquid ratio of aeration process is with 300:1
It is good.
S2, alkali tune tank 2 will be inputted through treated the percolate of Biochemical pot 1, and the solid lime that predetermined amount is added is stirred
It mixes, the pH value of percolate is made to reach 11 ~ 12.
Specifically, the content of solid lime be 80% ~ 90%, for example, 80%, 82%, 83%, 84%, 85%, 86%, 87%, 88%,
89% perhaps the solid lime such as 90% dispensing quality be to alkali tune handle percolate quality (or weight) 0.6% ~ 0.7%, stir
Mixing the time is 15 ~ 20 minutes, in order to subsequent stripping.
S3, alkali tune treated percolate input stripping device 3 is subjected to stripping processing, to be greatly lowered in percolate
Ammonia nitrogen concentration.
Specifically, alkali tune treated percolate input stripping device 3 is carried out in the step S3 of stripping processing, including made
Alkali tune treated percolate between the accommodating chamber of multiple rows of vertical cabinet for stacking arrangement on down toward circuitous flow, and pass through
More aeration tubes in the accommodating chamber bottom of each cabinet are arranged side by side in gas input by air delivery device, and from being opened in aeration tube
The solarization air cap of peripheral wall enters in the percolate of accommodating chamber, holds the vapor-liquid equilibrium relationship that solution is established in water to change ammonia nitrogen, makes
Volatile ammonia nitrogen is gas phase by liquid-phase conversion, then rises the process of simultaneously emersion liquid level along percolate.Specifically, stripping process
The preferred 3000:1 of gas liquid ratio, percolate is in accommodating chamber residence time preferred 20min, and with this condition, stripping effect is preferable.
S4, stripping treated percolate is inputted into flocculation tank 4, and the ferrous sulfate (FeSO of predetermined content is added4) molten
Liquid and solid soda ash are so that the suspended contaminant in percolate is flocculated, to reduce the hardness of percolate and adjust the pH of percolate
To neutrality, and after potassium permanganate composites precipitate, flocculate forms sludge, and supernatant is flowed out on potassium permanganate composites top.
Specifically, in this step S4, the content of ferrous sulfate solution is 28% ~ 32%, for example, 28%, 29%, 30%, 31%
Or 32% etc.；The content of solid soda ash is 97% ~ 98%.The quality (or weight) of ferrous sulfate solution is percolate to be flocculated
The 0.2% ~ 0.4% of quality, for example, 0.2%, 0.3% or 0.4% etc., preferably 0.3%.The quality (or weight) of solid soda ash is then
It is the 0.3% ~ 0.4% of percolate quality to be flocculated.
S5, water-containing sludge will be formed by after flocculation sedimentation by the first plate and frame filter press 5 of lower part spoil disposal end input, to water
Flocculate precipitate in body is filtered for the first time, is squeezed, and is obtained compared with clear water body.
Specifically, the first plate and frame filter press 5 be the prior art and be it is known to those skilled in the art, here not
Its specific structure and working principle are repeated again.Flocculate precipitate filtered, squeeze after form mud cake, mud cake can backfill
To refuse landfill.
S6, charcoal agitator tank 6 will be added compared with the input of clear water body and the Powdered Activated Carbon of predetermined amount is added, to pass through Powdered Activated Carbon
Absorption reduces coloration and stink compared with remaining most COD, heavy metal, ammonia nitrogen in clear water body.
Specifically, the quality (or weight) of Powdered Activated Carbon is 0.5% ~ 1.5% compared with clear water weight to be processed, such as
0.5%, 1% or 1.5%, preferably 1%, when being 1%, adsorption effect is preferable and processing cost is lower.
S7, relatively clear water body the second plate and frame filter press 7 of input containing Powdered Activated Carbon is subjected to secondary filters pressing, it is full to absorption
The Powdered Activated Carbon of sum is filtered, squeezes, and forms clear water.
Specifically, the second plate and frame filter press 7 be the prior art and be it is known to those skilled in the art, here not
Its specific structure and working principle are repeated again.Adsorption saturation is simultaneously press-filtered out give up through the second plate and frame filter press 7
Powdered Activated Carbon can be transported, and carry out charcoal regeneration by charcoal regenerating unit after drying and processing and (remove adsorbed most COD, again
Metal, ammonia nitrogen and coloration), it realizes and is used at the circulation of Powdered Activated Carbon, further decrease the processing cost of percolate.
S8, clear water is inputted into film processing system 8 to remove remaining overwhelming majority pollutant in clear water.
Specifically, film processing system 8 is multistage film processing system 8, including be sequentially connected ultrafiltration system 81, nanofiltration system
82 and counter-infiltration system 83, clear water is inputted into film processing system 8 to remove the step of remaining overwhelming majority pollutants in clear water
In rapid S8, including the clear water after secondary filters pressing is successively filtered through ultrafiltration system 81, nanofiltration system 82 and counter-infiltration system 83
The process of processing can remove remaining overwhelming majority pollutant in clear water.Due to ultrafiltration system 81, nanofiltration system 82 and reverse osmosis
System 83 is the prior art, and to be known to those skilled in the art, here no longer to ultrafiltration system 81, nanofiltration system
The specific structure and working principle of system 82 and counter-infiltration system 83 are into repeating.
S9, treated the clear water of film processing system 8 is inputted into sodium hypochlorite agitator tank 9, and the secondary chlorine of predetermined content is added
Acid receives (NaClO) to the progress depth removal processing of remaining ammonia nitrogen, completes the processing of percolate, clear water is made to reach discharge standard simultaneously
It can discharge outward.
Specifically, in step s 9, the content that hypochlorous acid is received be 9% ~ 11%, for example, 9%, 9.5%, 10%, 10.5% or
11%, preferably 10%.
Further, in step S9, in clear water successively through 83 mistake of ultrafiltration system 81, nanofiltration system 82 and counter-infiltration system
During filter is handled, ultrafiltration concentrated water, nanofiltration concentrated water and reverse osmosis concentrated water can be generated respectively, in order to realize zero concentrated water discharge, this
Invention further includes that the ultrafiltration concentrated water input for generating ultrafiltration system 81 plus charcoal agitator tank 6 carry out powder electroless plating processing；It will
The nanofiltration concentrated water that nanofiltration system 82 generates inputs the secondary Powdered Activated Carbon for adding charcoal agitator tank 84 and predetermined amount being added and is received with adsorbing
Remaining COD, heavy metal, ammonia nitrogen in concentrated water are filtered, and reduces coloration and stink, is then carried out again by the second plate and frame filter press of input
Filters pressing；And the reverse osmosis concentrated water input ultrafiltration system 81 for generating counter-infiltration system 83 carries out the process of ultrafiltration.It should illustrate
, secondary plus charcoal agitator tank 84 be similarly the prior art and be it is known to those skilled in the art, it is no longer right here
Its specific structure and working principle are repeated.
It further, further include percolate to be processed being inputted into conditioning tank, and carry out water quality and water tune before step S1
After section, then input the process of Biochemical pot 1.
Percolate is handled using the processing method of above-mentioned landfill leachate, and to the sampling of water quality after corresponding steps
After detection, it is as shown in the table to obtain accordingly result:
| COD(mg/L) | Ammonia nitrogen (mg/L) | Total nitrogen (mg/L) | Total phosphorus (mg/L) | Suspended contaminant (mg/L) | Coloration | |
| Conditioning tank percolate stoste | 10000 | 4000 | 5000 | 40 | 2500 | 300 |
| Biochemical pot processing | 4000 | 3000 | 3500 | 40 | 2000 | 300 |
| Alkali tune and stripping processing | 3950 | 400 | 500 | 40 | 800 | 200 |
| Flocculation and filters pressing processing | 1800 | 350 | 380 | 1.3 | 40 | 80 |
| Powder electroless plating processing | 600 | 230 | 280 | 1.3 | 25 | 40 |
| Film processing system 8 and hypochlorous acid receive in-depth processing | ≤100 | ≤25 | ≤30 | ≤0.8 | ≤15 | ≤20 |
By the situation of change of the indexs such as COD, ammonia nitrogen, total nitrogen, total phosphorus, suspended contaminant and coloration to table it is found that seeping
COD, ammonia nitrogen, total nitrogen, total phosphorus, suspended contaminant and the coloration of filtrate stoste be respectively 10000mg/L, 4000mg/L,
5000mg/L, 40mg/L, 2500mg/L and 300；Through Biochemical pot 1 processing after respectively variation be 4000mg/L, 3000mg/L,
3500mg/L, 40mg/L, 2000mg/L and 300；Through alkali tune and stripping processing after respectively variation be 3950mg/L, 400mg/L,
500mg/L, 40mg/L, 800mg/L and 200；Through flocculate and filters pressing processing after respectively variation be 1800mg/L, 350mg/L,
380mg/L, 1.3mg/L, 40mg/L and 80；After powder electroless plating is handled respectively variation be 600mg/L, 230mg/L,
280mg/L, 1.3mg/L, 25mg/L and 40；After film processing system 8 and hypochlorous acid receive in-depth processing final variation respectively for≤
100mg/L ,≤25mg/L ,≤30mg/L ,≤0.8mg/L ,≤15mg/L and≤20 are lower than landfill leachate new standard
GB16889-2008.It can discharge outward.
The present invention also proposes a kind of processing unit of landfill leachate, including Biochemical pot 1, alkali tune tank 2, stripping device 3, wadding
Solidifying tank 4, potassium permanganate composites (unmarked), the first plate and frame filter press 5 plus charcoal agitator tank 6, the second plate and frame filter press 7, film process
System 8 and sodium hypochlorite agitator tank 9.Microorganism fungus kind is equipped in Biochemical pot 1, for the infiltration to be processed inputted in it
Filtrate carries out bacteria metabolism effect；The water intake end of alkali tune tank 2 is led to by the water outlet of pipeline and Biochemical pot 1, is used for
The lime for handling through Biochemical pot 1 and input percolate and the predetermined amount being added in it in it is stirred, the pH of percolate is made
Value reaches 11 ~ 12；The water intake end of stripping device 3 is led to by the water outlet of pipeline and alkali tune tank 2, to handling and input through alkali tune
Percolate in it carries out stripping processing, the ammonia nitrogen concentration in percolate is greatly lowered；The water intake end of flocculation tank 4 passes through pipe
Road and the water outlet of stripping device 3 are led to, and can make to handle and input through stripping the pollutant in the percolate in it and it is added
Ferrous sulfate (the FeSO of interior predetermined content4) solution and solid soda ash flocculation reaction, to reduce the hardness of percolate and will seep
The pH of filtrate is adjusted to neutrality；The water intake end of the potassium permanganate composites and the water outlet of flocculation tank 4 are led to, and suspended contaminant is made
Supernatant is flowed out after diafiltration liquid precipitate after flocculation, makes flocculate and supernatant separation；The water intake end of first plate and frame filter press 5 is logical
The spoil disposal end for crossing pipeline and potassium permanganate composites is led to, the flocculate precipitate in the sludge inputted in it is filtered for the first time,
Squeezing is formed compared with clear water body；The water intake end of charcoal agitator tank 6 is added to pass through pipeline and potassium permanganate composites top-end water-outlet end and the first plate
The water outlet of frame filter press 5 is led to, and is stirred to the relatively clear water body inputted in it and the Powdered Activated Carbon that predetermined amount is added, with
By powder electroless plating compared with remaining most COD, heavy metal, ammonia nitrogen in clear water body, and reduce coloration and stink；Second
The water intake end of plate and frame filter press 7 is led to by pipeline with charcoal agitator tank 6 is added, to the water body containing Powdered Activated Carbon inputted in it
It carries out secondary filters pressing and forms clear water；The water intake end of the film processing system 8 passes through the water outlet of pipeline and the second plate and frame filter press 7
Lead to, film filtration treatment is carried out to the clear water inputted in it；To remove remaining overwhelming majority pollutant in clear water；Secondary chlorine
The water intake end of sour sodium agitator tank 9 is led to by the water outlet of pipeline and multistage membranous system, to the clear water of film filtration treatment and input
It receives and reacts with the hypochlorous acid for the predetermined content being added in it, to carry out depth removal processing to remaining ammonia nitrogen, to complete to seep
The processing of filtrate makes clear water reach discharge standard and can discharge outward.
It should be noted that Biochemical pot 1, alkali tune tank 2, stripping device 3, flocculation tank 4, potassium permanganate composites, the first sheet frame
The respective handling of filter press 5 plus charcoal agitator tank 6, the second plate and frame filter press 7, film processing system 8 and sodium hypochlorite agitator tank 9
Process refers to the embodiment of the processing method of above-mentioned landfill leachate, is not discussed here.
Specifically, film processing system 8 is multistage film processing system 8, including be sequentially connected ultrafiltration system 81, nanofiltration system
82 and counter-infiltration system 83, the clear water after secondary filters pressing is successively through ultrafiltration system 81, nanofiltration system 82 and counter-infiltration system
After 83 filtration treatments, remaining overwhelming majority pollutant in clear water can be removed.Due in clear water successively through ultrafiltration system 81, nanofiltration system
During system 82 and 83 filtration treatment of counter-infiltration system, ultrafiltration concentrated water, nanofiltration concentrated water and reverse osmosis concentrated water can be generated respectively,
In order to realize zero concentrated water discharge, the present invention also needs the ultrafiltration concentrated water for generating ultrafiltration system 81 input plus charcoal agitator tank 6 to carry out powder
Last activated carbon adsorption processing；The nanofiltration concentrated water that nanofiltration system 82 generates is inputted into secondary plus charcoal agitator tank 84 and predetermined amount is added
Powdered Activated Carbon reduces coloration and stink to adsorb remaining COD, heavy metal, ammonia nitrogen in nanofiltration concentrated water, then again by inputting
Second plate and frame filter press carries out filters pressing；And the reverse osmosis concentrated water input ultrafiltration system that counter-infiltration system 83 generates 81 is surpassed
The process of filter.The ultrafiltration concentrated water water outlet of ultrafiltration system is led to by pipeline with the water intake end of charcoal agitator tank is added, by nanofiltration
The nanofiltration concentrated water water outlet of system 82 is led to by pipeline and secondary plus charcoal agitator tank 84 water intake end, and secondary plus charcoal is stirred
The water outlet of tank and the water intake end of the second plate and frame filter press lead to, and the reverse osmosis concentrated water water outlet of counter-infiltration system 83 is led to
The water intake end for crossing pipeline and ultrafiltration system 81 leads to.
Further, the invention also includes conditioning tank (unmarked), the water outlet of conditioning tank passes through pipeline and Biochemical pot 1
Water intake end leads to, and percolate to be processed is inputted conditioning tank, and after carrying out water quality and runoff investigation, then input Biochemical pot 1.
In embodiments of the present invention, the number of the Biochemical pot 1 of bacteria metabolism effect is carried out to percolate to be processed
Amount can be one according to actual needs depending on (such as processing water, biological tank size and handling duration etc.), can also
Think it is multiple be sequentially connected, calculated with 2000 ton/days of processing water, 72 Biochemical pots 1 being sequentially connected can be used, each
The diameter of Biochemical pot 1 is 3.5m, is highly 9 meters, and the pH of percolate to be processed is 8 ~ 9.
Biochemical pot 1 can there are many embodiments, such as the prior art can be used, and the mode of being implemented as follows can also be used, such as
Shown in Fig. 3 to 6, Biochemical pot 1 includes tank body 11, and 11 inner hollow of tank body forms the accommodation space 110 for containing penetrating fluid, tank body 11
Outer wall offer the water inlet 111 and water outlet 112 for leading to accommodation space 110, water inlet 111 and water outlet 112 for point
Not Lian Jie water inlet pipe (not shown) and outlet pipe (not shown), percolate to be processed enters through water inlet pipe and water inlet 111 and holds
It receives space 110, after being handled and being removed the polluters such as most COD and ammonia nitrogen, flows out tank body 11 from water outlet 112, it is described
Accommodation space 110 is from top to bottom provided with the biozone 12 for microorganism fungus kind (such as nitrifier, not shown) attachment, makes to adhere to
It is bred in the microorganism fungus kind fast-growth of 12 outer surface of biozone and/or inner surface, biochemical reaction film is formed, to improve micro- life
The contact area of object and percolate removes the pollutions such as COD and the ammonia nitrogen in percolate to improve the processing speed to percolate
Substance.
The bottom of the accommodation space 110 is provided with multiple aerators 13, the venthole of the aerator 13 upward,
The air intake of aerator 13 is (not shown) to pass through tracheae 4 and air delivery device (such as air pump, not shown) phase outside tank body 11
Even, when work, air transtracheal 14 is sent into accommodation space 110 by air delivery device, and finally from the gas outlet of aerator 13 to
Upper penetrating percolate, to improve the growth and breeding speed of microorganism fungus kind to the microorganism fungus kind oxygenation in percolate, to mention
Processing speed of the height to penetrating fluid.Specifically, the aerator 13 can be for equipped with the exposure of the shower shape of air intake and venthole
Gas disk, or offer the cylinder of air intake and venthole.Tracheae 14 enters accommodation space 110 from the top of tank body 1, and
It extends downward into and is connect with the air intake of aerator 13.
Further, the position that the tracheae 14 is higher than percolate liquid level 100 is provided with switch valve 141, to control tracheae
14 through and off when closing switch valve 141, and needing to be aerated, then open switch valve when being not required to aeration.Specifically, institute
Stating switch valve 141 can be electromagnetic switch valve 141, or manual switch valve 141.
Specifically, 110 vertical spacing of accommodation space is equipped with multiple support frame 15(and is illustrated in figure 5 three supports
The case where frame), each 15 horizontal interval of support frame fills a plurality of biozone 12, to adhere to relatively more microorganism fungus kind, into
One step improves the processing speed to percolate.More specifically, every biozone 12 may include two webbings, two institutes
The edge for stating webbing sews up connected, surrounds the space of fillable microorganism fungus kind.
In the embodiment of the present invention, the water inlet 111 is set to the position that 11 outer wall of tank body is higher than water outlet 112, preferably sets
In 11 outer wall of tank body close to the position of 11 roof of tank body.The setting of water outlet 112 is in 11 outer wall of tank body close to 110 bottom wall of accommodation space
Position.
Further, the outer wall of the tank body 11 offers the row for leading to accommodation space 110 lower than the position of water outlet 112
Mud mouth 113, mud discharging mouth 113 by sludge pipe connection suction pump (not shown) (not shown), draw water pump work when, can will be deposited in
The mud of 110 bottom of accommodation space extracts tank body 11 out, blocks water outlet 112 to avoid mud.As a same reason, sludge pipe can also be set
Switch valve (not shown) is set, to control the through and off of sludge pipe (not shown).
Further, the outer wall of 11 lower part of tank body offers the manhole 114 for leading to accommodation space 110, and detachable
Installation (as detachably installed by screw rod) have can by 114 closed cover board (not shown) of manhole, need to accommodation space 110 and
When component (such as biozone 12, tracheae 14 and aerator 13) in it is cleared up or safeguarded, cleaning or maintenance personnel can be incited somebody to action
After detachable cover plate, is cleared up or safeguarded accordingly into accommodation space 110 through manhole 114.Specifically, manhole 114 is set
Setting be subject to easy cleaning or maintenance personnel can smoothly enter into accommodation space 110, and get Tai Gao should not be arranged, such as may be configured as omiting
Higher than water outlet 112.
In embodiments of the present invention, as shown in Fig. 7 to 10, which includes the cabinet of multiple rows of vertical stacked arrangement
31, the hollow formation accommodating chamber 311 of multiple cabinets 31 of every row leads to between the accommodating chamber 311 for arranging adjacent cabinet 31
It crosses overflow hole or pipeline leads to, offered respectively positioned at two cabinets 31 of every two side position of row and lead to accommodating chamber 311
Inlet opening (not shown) and scupper (not shown), and in neighbouring two rows of cabinets 31, be located above a row and be equipped with and fall
The cabinet 31 in water hole and the cabinet 31 that a row below is equipped with inlet opening are vertical adjacent, and overboard company is led between scupper and inlet opening
Adapter tube 32 is connected, make percolate can between the cabinet 31 of multiple rows of vertical stacked arrangement from top to bottom circuitous flow, to provide
Biggish carbonated drink contact area and preferable mass transfer condition, and can ensure that disorderly, reduction foam generation is put down in percolate flowing；Each case
The bottom of the accommodating chamber 311 of body 31, which is arranged side by side, more aeration tubes 33, and aeration tube 33 is by air inlet pipe 34 and is located at cabinet 31
Outer air delivery device (such as air pump, not shown) is connected, and the peripheral wall of aeration tube 33 is equipped with solarization air cap 331, and each cabinet 31, which is higher than, to be seeped
The position of filtrate liquid level offers the gas vent (not shown) for leading to accommodating chamber 311.Work by when, by the infiltration after preliminary treatment
Filtrate is sent into the accommodating chamber 311 for being located at the cabinet 31 that one row of the top is equipped with inlet opening, and air delivery device is by gas through air inlet pipe
34 are sent into aeration tube 33, and from the percolate that solarization air cap 331 enters accommodating chamber 311, change ammonia nitrogen gas and hold solution institute in water
The vapor-liquid equilibrium relationship of foundation makes volatile ammonia nitrogen gas by liquid-phase conversion gas phase, then rises simultaneously emersion along percolate
Liquid level, then through gas vent flow out accommodating chamber 311 be collected processing (as by the absorption of ammonia nitrogen absorption system handle) or
It is dispersed into atmosphere, ammonia nitrogen removal frank is up to 80% or more, and the percolate handled through stripping is then finally from a minimum row equipped with overboard
The cabinet 31 in hole flows out and carries out subsequent processing.
Specifically, the pipeline is equipped with the first switch valve that can be used for controlling its own on-off, the overboard connecting tube 32
Equipped with the second switch valve that can be used for controlling its own on-off, needing to control percolate in the receiving of corresponding cabinet 31
When being flowed between room 311, corresponding first switch valve and/or second switch valve can be opened, conversely, then closing.Described first
Switch valve and second switch valve can be manual switch valve or electromagnetic switch valve.
Further, the position that the cabinet 1 is higher than liquid level offers manhole 312, detachably installs (such as at manhole 312
Detachably installed by screw rod) have and the closed baffle 35 of manhole 312 can be needed to accommodating chamber 311 and its interior component (as exposed
Tracheae 33) when being cleared up or being safeguarded, after cleaning or maintenance personnel can dismantle baffle 35, enter accommodating chamber 311 through manhole 312
It is cleared up or is safeguarded accordingly.Specifically, the setting of manhole 312 should can smoothly enter into appearance with easy cleaning or maintenance personnel
It receives subject to room 311, get Tai Gao should not be set.Specifically, baffle 35 can be made of transparent material, so that in through transparent
Baffle 35 observes the clear condition in accommodating chamber 311.Certainly, it when baffle 35 is made of non-transparent material, can be kept off by disassembly
Plate 35 observes the situation in accommodating chamber 311.More specifically, transparent material can be plastics, acrylic or tempered glass etc., lid
The preferred watertight processing in the junction of plate and manhole, such as setting sealing ring.
Since in processing, the gas of the ejection of solarization air cap 331 through aeration tube 33 emerges same in carrying ammonia nitrogen
When, it can also be after liquid level generation foam, long-time, the foam for floating on liquid level is cumulative, there is the possibility overflowed outside cabinet 31,
Therefore, it is necessary to be handled in foam.To solve this problem, water can be set at the predetermined foam height of the accommodating chamber 311
Position meter (not shown) is equipped with spray head 36 in the position that accommodating chamber 311 is higher than predetermined foam height, and spray head 36 passes through delivery pipe
The holding vessel (not shown) that (not shown) is loaded with defoaming liquid with outside leads to, and delivery pipe, which is equipped with, can be used for controlling its on-off
Solenoid valve (not shown), solenoid valve and water-level gauge are electrically connected with control system (not shown), when water-level gauge detects foam height
When reaching predetermined altitude, the information that control system is fed back according to water-level gauge opens solenoid valve, sprays defoaming liquid through spray head 36
On foam, and eliminate foam.It should illustrate, defoaming liquid is the prior art, and ripe for those skilled in the art
Know, the specific composition no longer to defoaming liquid and defoaming principle repeat here.
In an embodiment of the present invention, the beginning of every aeration tube 33 opens wide end closing, and open beginning passes through air inlet
Pipe 34 leads to the air delivery device being located at outside cabinet 31, and the solarization air cap of every aeration tube has two rows, and the solarization air cap 331 of every row is along exposure
Tracheae 33 axial (length direction in other words) is spaced apart, and each solarization air cap 331 is horizontal by 45 degree of angles, this setting side
Formula can further improve stripping effect.
Should illustrate, 31 quantity of cabinet of the number of rows of cabinet 31 and every row can as the case may be depending on, such as can
Think two rows, three rows, four rows, five rows, six rows (the case where being illustrated in figure 7 six rows) or more, 31 quantity of cabinet of every row
Can be for two, three (situation for being illustrated in figure 7 three), four or more, in row's cabinet 31 of the top,
Inlet opening is opened in the cabinet 31 of the leftmost side, and scupper is opened in the cabinet 31 of the rightmost side；A row positioned at secondary the top
In cabinet 31, inlet opening is opened in the cabinet 31 of the rightmost side, and scupper is opened in the cabinet 31 in left side, and so on.
Scupper (not shown) should be set to the position that cabinet is lower than liquid level, be preferably disposed to the bottom of cabinet.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of processing method of landfill leachate, which comprises the steps of:
S1, percolate to be processed is inputted into Biochemical pot and carries out bacteria metabolism effect 2 ~ 3 days, to remove in percolate
Most of pollutant based on COD, and so that organonitrogen compound is converted into ammoniacal nitrogen, while by part mineralized nitrogen at nitrous
Sour nitrogen；
S2, alkali tune tank will be inputted through Biochemical pot treated percolate, and the solid lime that predetermined amount is added is stirred, and makes to seep
The pH value of filtrate reaches 11 ~ 12；
S3, alkali tune treated percolate input stripping device is subjected to stripping processing, the ammonia in percolate is greatly lowered
Nitrogen concentration；
S4, stripping treated percolate is inputted into flocculation tank, and the ferrous sulfate solution and solid soda ash of predetermined content is added
So that the pollutant in percolate flocculates, to reduce the hardness of percolate and be adjusted to neutrality the pH of percolate, and through highly dense
After spending sedimentation basin precipitating, flocculate forms sludge, and supernatant is flowed out on potassium permanganate composites top；
S5, water-containing sludge will be formed by after flocculation sedimentation by the first plate and frame filter press of lower part spoil disposal end input, to therein
Flocculate precipitate is filtered for the first time, is squeezed, and is obtained compared with clear water body；
S6, the supernatant that potassium permanganate composites top is flowed out and the relatively clear water body that the first plate and frame filter press obtains input plus charcoal are stirred
It mixes tank and the Powdered Activated Carbon of predetermined amount is added, to pass through remaining most COD, a huge sum of money in powder electroless plating water body
Belong to, ammonia nitrogen, and reduces coloration and stink；
S7, the water body containing Powdered Activated Carbon is inputted to the secondary filters pressing of the second plate and frame filter press progress, to adsorption saturation in water body
Powdered Activated Carbon be filtered, squeeze, formed clear water；
S8, clear water is inputted into film processing system, to remove remaining overwhelming majority pollutant in clear water；
S9, film processing system treated clear water inputs to sodium hypochlorite agitator tank, and the hypochlorous acid that predetermined content is added is received pair
Remaining ammonia nitrogen carries out depth removal processing, completes the processing of percolate, so that clear water is reached discharge standard and can discharge outward.
2. the processing method of landfill leachate as described in claim 1, it is characterised in that: percolate to be processed is inputted life
Change tank and carry out bacteria metabolism and act in 2 ~ 3 days step S1, including is from top to bottom set to Biochemical pot by being attached to
The biochemical reaction film of the bred formation of microorganism fungus kind on interior biozone carries out bacteria metabolism effect to percolate,
And the process being aerated upwards toward percolate from biochemical pot bottom.
3. the processing method of landfill leachate as described in claim 1, it is characterised in that: by alkali tune, treated that percolate is defeated
Enter stripping device to carry out in the step S3 of stripping processing, treated including making alkali tune percolate vertical stacks arrangement along multiple rows of
Down toward circuitous flow between the accommodating chamber of cabinet, and gas input is arranged side by side in each cabinet by air delivery device
More aeration tubes of accommodating chamber bottom, and from the percolate that the solarization air cap for being opened in aeration tube peripheral wall enters accommodating chamber, to change
Become ammonia nitrogen and hold the vapor-liquid equilibrium relationship that solution is established in water, makes volatile ammonia nitrogen by liquid-phase conversion gas phase, then along infiltration
Filtrate rises and the process of emersion liquid level.
4. the processing method of landfill leachate as described in claim 1, it is characterised in that: clear water input film processing system with
Remove in clear water in the step S8 of remaining most pollutants, including by the clear water after secondary filters pressing successively through ultrafiltration system
Sodium hypochlorite agitator tank is inputted after system, nanofiltration system and counter-infiltration system filtration treatment；The ultrafiltration that ultrafiltration system is generated is dense
Water input plus charcoal agitator tank carry out powder electroless plating processing；The nanofiltration concentrated water that nanofiltration system generates is inputted secondary plus charcoal to stir
It mixes tank and the Powdered Activated Carbon of predetermined amount is added to adsorb remaining COD, heavy metal, ammonia nitrogen in nanofiltration concentrated water, and reduce coloration
And stink, filters pressing is then carried out by the second plate and frame filter press of input again；And the reverse osmosis concentrated water for generating counter-infiltration system is defeated
Enter the process that ultrafiltration system carries out ultrafiltration.
5. the processing method of the landfill leachate as described in any one of Claims 1-4, it is characterised in that: in step S1
Before, further include that percolate to be processed is inputted into conditioning tank, and after carrying out water quality and runoff investigation, then inputs the process of Biochemical pot.
6. a kind of processing unit of landfill leachate characterized by comprising
Biochemical pot, the Biochemical pot is interior to be equipped with microorganism fungus kind, for carrying out micro- life to the percolate to be processed inputted in it
Object metabolism；
The water intake end of alkali tune tank, the alkali tune tank is led to by the water outlet of pipeline and Biochemical pot, for handling through Biochemical pot
And the lime for inputting its interior percolate and the predetermined amount being added in it is stirred, and the pH value of percolate is made to reach 11 ~ 12；
The water intake end of stripping device, the stripping device is led to by the water outlet of pipeline and alkali tune tank, is handled simultaneously through alkali tune
The percolate inputted in it carries out stripping processing, the ammonia nitrogen concentration in percolate is greatly lowered；
The water intake end of flocculation tank, the flocculation tank is led to by the water outlet of pipeline and stripping device, can make to handle simultaneously through stripping
The ferrous sulfate solution and solid soda ash for inputting the suspended contaminant in the percolate in it and the predetermined content being added in it are wadded a quilt with cotton
Solidifying reaction, to reduce the hardness of percolate and be adjusted to neutrality the pH of percolate,；
Potassium permanganate composites, the water intake end of the potassium permanganate composites and the water outlet of flocculation tank are led to, and are made in landfill leachate
Flocculate precipitate to form sludge, potassium permanganate composites top flow out supernatant；
The water intake end of first plate and frame filter press, first plate and frame filter press is logical by the spoil disposal end of pipeline and potassium permanganate composites
Even, the water-containing sludge inputted in it filtered for the first time, squeezed, obtained compared with clear water body；
Add charcoal agitator tank, described plus charcoal agitator tank water intake end passes through pipeline and potassium permanganate composites top-end water-outlet end and the first plate
The water outlet of frame filter press is led to, and is stirred to the relatively clear water body inputted in it and the Powdered Activated Carbon that predetermined amount is added, with
By powder electroless plating compared with remaining most COD, heavy metal, ammonia nitrogen in clear water body, and reduce coloration and stink；
The water intake end of second plate and frame filter press, second plate and frame filter press is led to by pipeline with charcoal agitator tank is added, to input
The water body containing Powdered Activated Carbon in it carries out secondary filters pressing and forms clear water；
The water intake end of film processing system, the film processing system is led to by the water outlet of pipeline and the second plate and frame filter press, right
The clear water inputted in it carries out film filtration treatment；And
The water intake end of sodium hypochlorite agitator tank, the sodium hypochlorite agitator tank is logical by the water outlet of pipeline and multistage membranous system
Even, the clear water of film filtration treatment and input is received with the hypochlorous acid for the predetermined content being added in it and reacts, to remaining ammonia nitrogen
Carry out depth removal processing.
7. the processing unit of landfill leachate as claimed in claim 6, it is characterised in that: Biochemical pot includes tank body, in tank body
Portion is hollow to form the accommodation space for containing penetrating fluid, and the outer wall of tank body offers the inlet and outlet for leading to accommodation space,
For being separately connected water inlet pipe and outlet pipe, the accommodation space is from top to bottom provided with for microbial bacteria inlet and outlet
The biozone of kind attachment, the bottom of accommodation space are provided with multiple aerators, and the venthole of the aerator upward, is aerated
The air intake of device is connected by tracheae with the air delivery device being located at outside tank body.
8. the processing unit of landfill leachate as claimed in claim 6, it is characterised in that: stripping device includes multiple rows of vertical heap
The cabinet of stack arrangement, the hollow formation accommodating chamber of multiple cabinets of every row lead to between the accommodating chamber for arranging adjacent cabinet
It crosses overflow hole or pipeline leads to, offer the water inlet for leading to accommodating chamber respectively positioned at two cabinets of every two side position of row
Hole and scupper, and in neighbouring two rows of cabinets, it is located above a row and is set equipped with the cabinet of scupper with a row below
There is the cabinet of inlet opening vertical adjacent, overboard connecting tube is led between scupper and inlet opening and is connected, makes percolate that can hang down multiple rows of
To from top to bottom circuitous flow between the cabinet of stacked arrangement, the bottom of the accommodating chamber of each cabinet, which is arranged side by side, more aerations
Pipe, aeration tube are connected by air inlet pipe with the air delivery device being located at outside cabinet, and the peripheral wall of aeration tube is equipped with solarization air cap, each cabinet
Position higher than percolate liquid level offers and leads to the gas vent of accommodating chamber.
9. the processing unit of landfill leachate as claimed in claim 8, it is characterised in that: at the predetermined foam height of accommodating chamber
It is provided with water-level gauge, the position that accommodating chamber is higher than predetermined foam height is equipped with spray head, and spray head is contained by delivery pipe and outside
Holding vessel equipped with defoaming liquid leads to, and delivery pipe is equipped with the solenoid valve that can be used for controlling its on-off, solenoid valve and water-level gauge with
Control system electrical connection, when water-level gauge detects that foam height reaches predetermined altitude, control system is fed back according to water-level gauge
Information opens solenoid valve, is sprayed on defoaming liquid on foam through spray head.
10. the processing unit of the landfill leachate as described in any one of claim 6 to 9, it is characterised in that: further include two
Secondary plus charcoal agitator tank, film processing system are that multistage film processing system includes the ultrafiltration system being sequentially connected, nanofiltration system and anti-
The ultrafiltration concentrated water water outlet of osmosis system, ultrafiltration system is led to by pipeline with the water intake end of charcoal agitator tank is added, nanofiltration system
Nanofiltration concentrated water water outlet is led to by the water intake end of pipeline and secondary plus charcoal agitator tank, secondary plus charcoal agitator tank water outlet and the
The water intake end of two plate and frame filter press leads to, and the reverse osmosis concentrated water water outlet of counter-infiltration system enters water by pipeline and ultrafiltration system
Lead at end.
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