CN206437971U - A kind of environment-friendly high-efficiency pickling waste waters processing system - Google Patents
A kind of environment-friendly high-efficiency pickling waste waters processing system Download PDFInfo
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- CN206437971U CN206437971U CN201621378513.7U CN201621378513U CN206437971U CN 206437971 U CN206437971 U CN 206437971U CN 201621378513 U CN201621378513 U CN 201621378513U CN 206437971 U CN206437971 U CN 206437971U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 87
- 238000012545 processing Methods 0.000 title claims abstract description 50
- 238000005554 pickling Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000011572 manganese Substances 0.000 claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 238000005189 flocculation Methods 0.000 claims abstract description 28
- 230000016615 flocculation Effects 0.000 claims abstract description 28
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 26
- 239000004576 sand Substances 0.000 claims abstract description 22
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 20
- 238000010612 desalination reaction Methods 0.000 claims abstract description 19
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
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- 239000002253 acid Substances 0.000 claims description 13
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- 238000006243 chemical reaction Methods 0.000 claims description 11
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- 229910052799 carbon Inorganic materials 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
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- 241000196324 Embryophyta Species 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
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- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
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- 241000208340 Araliaceae Species 0.000 description 1
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
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- 206010054949 Metaplasia Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
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- 229910017604 nitric acid Inorganic materials 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model provides a kind of environment-friendly high-efficiency pickling waste waters processing system, and the processing system includes：Grid pond；Grease removal tank, water inlet is connected by pipeline with grid pond；Filtration with manganese sand pond, water inlet is connected by pipeline with grease removal tank delivery port；Regulating reservoir, water inlet is connected by pipeline with filtration with manganese sand pond delivery port；Flocculation tank, water inlet is connected by pipeline with regulating reservoir delivery port；Second-level settling pond, water inlet is connected by pipeline with flocculation tank delivery port；More medium filter, water inlet is connected by pipeline with second-level settling pond liquid outlet；Ultra filtration unit and RO film desalination units are sequentially connected by pipeline.The processing system is compared with traditional process equipment, floor space is small, operating cost is few, and without CO2 emission, the discharge of each pollutant can largely be reduced, improve local people's living environment, improve people's living standard, improve the infrastructure level of surrounding area, environmental quality level is improved, it is good in economic efficiency.
Description
Technical field
The utility model is related to field of waste water treatment, in particular it relates to a kind of environment-friendly high-efficiency pickling waste waters processing system.
Background technology
China's freshwater resources are very short, per capita ownership 2300m3, equivalent to the 1/4 of world's per capita share, occupy the world
110.From 1997, National urban quantity of wastewater effluent accounts for the ratio of wastewater emission amount close to 45%, changes China's water dirty
The situation of control always based on industrial wastewater treatment is contaminated, starts to strengthen the comprehensive regulation work of municipal sewage.1999
China's municipal sewage pollutional load has exceeded industrial wastewater pollution load first, and China's water pollution control emphasis is from industrial sites
Source pollution based on control, be progressively changed into municipal sewage pollute based on control.According to《Chinese environmental situation is public within 2003
Report》Announce, 2003, national wastewater emission amount is 46,000,000,000 tons, wherein 247.6 hundred million tons of city domestic sewage discharge capacity, accounts for dirt
The 53.8% of water total emission volumn.13,330,000 tons of chemical oxygen demand of waste water (COD) total emission volumn, wherein sanitary sewage COD discharges
821.7 ten thousand tons, account for the 61.6% of waste water COD total emission volumn, it can be seen that, the situation is tense for the water pollution of current China, particularly
Influence of the discharge of municipal sewage to surface water and quality of groundwater seems more prominent.According to relevant statistics, the whole nation is near
80% sanitary sewage is unprocessed, is directly discharged into rivers,lakes and seas, and year, blowdown flow rate was up to 40,000,000,000 m3, cause the water in the whole nation more than 1/3
Domain is contaminated.Expert points out that water pollution exacerbates the shortage of water resource, directly threatens safety and the people of drinking water
Health, it is about the 1.5~3% of GNP to have influence on the economic loss that industrial and agricultural production and Crop securify cause, water pollution into
For no less than big flood, drought or even even more serious disaster.The maximum harm in future city is exactly sewage.Cause China's water pollution
Serious one of the main reasons is due to national cities and towns pollution.
Pickling waste waters is in order to remove oxidation on metal surface thing, using acid such as sulfuric acid, nitric acid, hydrochloric acid, hydrofluoric acid and phosphoric acid
The waste water produced when carrying out acid wash processing.Waste water multi-source is in steel plant or Electroplate Factory, pH value (trip typically below 1.5
From sour 0.5-2%), in highly acid, waste water is handled using neutralisation, frequently with nertralizer have lime, dolomite and
Magnesia, retardance partition method.
However, existing pickling waste waters processing is generally present, processing cost is low, and poor processing effect easily causes secondary pollution etc.
Problem.
For pickling waste waters processing, the current country is primarily present following patent document：
License notification number：205528261U, discloses a kind of stainless steel acid cleaning waste water processing unit, and grid device connects
Regulating reservoir, regulating reservoir is ined succession fore filter, fore filter is connected to one-level dosing pond, one-level dosing pond and high-frequency impulse
The formation closed cycle of electric flocculation system；High-frequency electrical pulses flocculation system is connected to one-level mudpan；One-level mudpan
In succession two grades of dosing ponds, the supernatant of one-level mudpan is entered two grades of dosing ponds, two grades of dosing ponds are connected to two grades of dirts
Mud sedimentation basin；The supernatant outlet of secondary sludge sedimentation basin is connected to sandfiltration pot, and the mud mixture of secondary sludge sedimentation basin goes out
Mouth is connected to bioleaching system；The delivery port of sandfiltration pot is connected to apparatus for removing fluorine, and apparatus for removing fluorine is connected to oblique zeolite beds, oblique zeolite beds
It is connected to effluent collection pond；Bioleaching system is connected to membrane distillation concentration system；Membrane distillation concentration system is ined succession electrolysis system,
Electrolysis system, which is ined succession, reclaims nickel device.The utility model can realize that stainless steel acid cleaning waste water is handled.However, what the patent was provided
Processing unit, complicated, treatment process is more, and processing cost is high, and economic benefit is low.
Utility model content
To solve above-mentioned problem, the purpose of this utility model is to provide a kind of environment-friendly high-efficiency pickling waste waters processing
System, the processing system is compared with traditional process equipment, and floor space is small, operating cost is few, and without CO2 emission, can
The discharge of each pollutant is largely reduced, the water body environment of surrounding area is significantly improved and improve, people's health level is improved,
Improve local people's living environment, improve people's living standard, improve the infrastructure level of surrounding area, improve ring
Border quality level, it is good in economic efficiency.
To reach above-mentioned purpose, the technical solution of the utility model is：
A kind of environment-friendly high-efficiency pickling waste waters processing system, the processing system includes：Grid pond, if water inlet, and entering
The mouth of a river, which goes out, installs grid, and scraper plate is set on grid；Grease removal tank, water inlet is connected by pipeline with the grid pond delivery port；Manganese
Sand filtering ponds, water inlet is connected by pipeline with the grease removal tank delivery port, and filter membrane is manganese matter active filter film；Regulating reservoir, water inlet
Mouth is connected by pipeline with filtration with manganese sand pond delivery port, inside sets agitator, charge door is connected by pipeline with soda acid charging basket；
Flocculation tank, water inlet is connected by pipeline with the regulating reservoir delivery port, sets water intaking valve on inlet pipeline, including along current
Neutralization reaction area and coagulating area that direction is set gradually, inside set agitating unit, neutralization reaction area and coagulating area difference
Pass through the external dosing unit of pipeline；Second-level settling pond, water inlet is connected by pipeline with the flocculation tank delivery port, is inside set
Coagulating settling vessel, forms and the separation of solid and liquid of waste water is handled；More medium filter, water inlet passes through pipeline and described two grades
Sedimentation basin liquid outlet is connected, setting multi-medium filtering layer in it；Ultra filtration unit and RO film desalination units are sequentially connected by pipeline,
Ultra filtration unit water inlet is connected by pipeline with the more medium filter delivery port.
Further, the grid is made up of one group of parallel metal grizzly bar with framework, is tiltedly mounted on pickling waste waters and is entered
The mouth of a river, or enter at the import of pump works sump, form the interception to thick suspension and impurity in pickling waste waters.
In addition, the grease removal tank is that horizontal Tile is connected with filtration with manganese sand pond, the waste water outflow after grease removal tank processing to manganese sand
In filtering ponds.
Separately have, the regulating reservoir quantity is 2, a preparation and a use.
Again, the first buffer pool, the pipe that regulating reservoir is connected with the first buffer pool are set between the regulating reservoir and flocculation tank
Lu Shangshe waste water lifting pumps, the first buffer pool is connected by overflow downcomer with the flocculation tank.
Further, the flocculation tank quantity is 2, a preparation and a use.
And, the second-level settling pond also sets refluxing opening, and supernatant liquor after precipitation is back into the flocculation by return duct
Reaction tank；Second-level settling pond base sludge is sequentially connected by pipeline with sludge concentration tank, plate and frame type filter-press, second-level settling pond
Pipeline between sludge concentration tank is provided with sludge pump.
In addition, setting the second buffer pool between the second-level settling pond and more medium filter.
Again, the multi-medium filtering layer is formed by quartz sand and active carbon build-up.
Separately have, the first intermediate water tank is provided between the more medium filter and ultra filtration unit；Ultra filtration unit takes off with RO films
The second intermediate water tank is provided between salt unit；RO film desalination unit delivery ports are connected with reuse water tank by pipeline；In the middle of second
Antisludging agent feed pot is connected on pipeline between water tank and RO film desalination units；The RO films desalination unit charge door passes through pipeline
It is connected to pickling protection liquid feed pot.
The beneficial effects of the utility model are：
Comparative analysis water-in and water-out water quality, the core for determining the handling process is Natural zeolite, iron ion, manganese ion, outstanding
Float and neutralisation treatment water middle and high concentration acid solution residue.Using " stirring and adjusting+flocculation tank+second-level settling pond+many Jie
Matter is filtered " handling process.Hydrofluoric acid waste liquid processing should be carried out in effluent settling chamber, and sedimentation basin used should be by anti-with raceway groove
Ooze processing.Sodium hydroxide [Na (OH)] is put into sedimentation basin and fully to mix stirring by processing procedure, makes its reaction complete.It should note
Meaning in treated fluorine-containing acid waste liquid by still remaining metal ion and fluorine ion, in order to improve fluorine removing rate, throws simultaneously
Enter a certain amount of chlorine flocculant, can make to precipitate more complete in suspension and metal ion.Can be by pickling waste waters by flocculation reaction
In fluorine ion, iron ion, manganese ion and suspension remove, and carrying out reaction to pickle liquor becomes its molecular structure
Metaplasia makes the pH value of waste water more stablize into the sediment not readily dissolved.
It is now to meet the reuse of waste water and reduces the requirement of discharge as far as possible, and realizes repeatedly sharp again after wastewater treatment
With, it is necessary to deep desalting treatment is carried out, for this for the economically feasible of the basic demand of quality of reused water, and waste water recycling
Property, this programme determines to carry out waste water filtration treatment, the pollutant, oil, SS of waste water is removed, and then again carries out processing water outlet
Advanced desalination processing, makes the salt in recycle-water no longer accumulate, and processing water outlet reaches the reuse requirement repeatedly of renewable water.
Waste water uses reverse osmosis membrane processing, and wastewater deep treatment process has technical feasibility and reliable using hyperfiltration
Property.
Compared with traditional handicraft, floor space, operating cost save or saved 1/3rd, and without carbon dioxide row
Put, if transformed using this technique traditional wastewater treatment plant, soil 1/3rd can be liberated, in current an inch of land is an inch of gold
In urban construction, great economic and social benefit can be brought.
The discharge of each pollutant can be largely reduced, the water body environment of surrounding area is significantly improved and improve, people is improved
People's general level of the health, improves local people's living environment as far as possible, improves people's living standard, and the basis for improving surrounding area is set
Level is applied, environmental quality level is improved, this area is accomplished that economic growth develops in harmony with environmental protection.
Traditional waste water treatment process long flow path is solved, complex technical process, land area is big, and capital cost is high, equipment
Investment is big, the high problem of operating cost, and then simplifies sewage treatment process, and the equipment operation is simple (can be manual, automatic)
Service life is long, and composite technology performance is stable.
Therefore, promoting the use of for the technique can not only reduce the cost of sewage disposal, energy-conserving and environment-protective, and can meet difference
Level, requirement of the different scales business unit to sewage disposal, so as to solve the problem of some business unit's sewage disposals are difficult, symbol
Close the industry direction of national energy-saving emission reduction, wide market.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of environment-friendly high-efficiency pickling waste waters processing system provided by the utility model.
Embodiment
The utility model is described further below by specific embodiment, but embodiment is not intended to limit this practicality newly
The protection domain of type.
Referring to Fig. 1, a kind of environment-friendly high-efficiency pickling waste waters processing system described in the utility model, the processing system bag
Include：Grid pond 1, if water inlet, and go out to install in water inlet scraper plate is set on grid (not shown), grid；Grease removal tank 2, water inlet
Mouth is connected by pipeline with the delivery port of grid pond 1；Filtration with manganese sand pond 3, water inlet passes through pipeline and the water outlet of grease removal tank 2
Mouth connection, filter membrane (not shown) is manganese matter active filter film；Regulating reservoir 4, water inlet passes through pipeline and the water outlet of filtration with manganese sand pond 3
Mouth connection, inside sets agitator (not shown), charge door is connected by pipeline with soda acid charging basket 41；Flocculation tank 5, water inlet leads to
Cross pipeline to connect with the delivery port of regulating reservoir 4, water intaking valve (not shown) is set on inlet pipeline, including set successively along water (flow) direction
The neutralization reaction area (not shown) put and coagulating area (not shown), inside set agitating unit (not shown), neutralization reaction area and
Coagulating area passes through the external dosing unit 51 of pipeline respectively；Second-level settling pond 6, water inlet passes through pipeline and the flocculation reaction
The delivery port connection of pond 5, inside sets coagulating settling vessel (not shown), is formed and the separation of solid and liquid of waste water is handled；Multi-medium filtering
Device 7, water inlet is connected by pipeline with the liquid outlet of second-level settling pond 6, setting multi-medium filtering layer (not shown) in it；It is logical
Cross pipeline and be sequentially connected ultra filtration unit 8 and RO films desalination unit 9, the water inlet of ultra filtration unit 8 passes through pipeline and the multimedium mistake
The delivery port of filter 7 is connected.
Further, the grid is made up of one group of parallel metal grizzly bar with framework, is tiltedly mounted on pickling waste waters and is entered
The mouth of a river, or enter at the import of pump works sump, form the interception to thick suspension and impurity in pickling waste waters.
In addition, the grease removal tank 2 is that horizontal Tile is connected with filtration with manganese sand pond 3, the waste water outflow after the processing of grease removal tank 2 to manganese
In sand filtering ponds 3.
Separately have, the quantity of regulating reservoir 4 is 2, a preparation and a use.
Again, the first buffer pool 10 is set between the regulating reservoir 4 and flocculation tank 5, regulating reservoir 4 connects with the first buffer pool 10
Waste water lifting pump (not shown) is set on the pipeline connect, the first buffer pool 10 passes through overflow downcomer (not shown) and the flocculation tank
5 connections.
Further, the quantity of flocculation tank 5 is 2, a preparation and a use.
And, the second-level settling pond 6 also sets refluxing opening, and supernatant liquor after precipitation is back into the flocculation by return duct
Reaction tank 5；The base sludge of second-level settling pond 6 is sequentially connected by pipeline with sludge concentration tank 11, plate and frame type filter-press 12, two grades
Pipeline between sedimentation basin 6 and sludge concentration tank 11 is provided with sludge pump (not shown).
In addition, setting the second buffer pool 13 between the second-level settling pond 6 and more medium filter 7.
Again, the multi-medium filtering layer is formed by quartz sand and active carbon build-up.
Separately have, the first intermediate water tank 14 (volume 20T) is provided between the more medium filter 7 and ultra filtration unit 8；Ultrafiltration
The second intermediate water tank 15 (volume 10T) is provided between unit 8 and RO films desalination unit 9；The delivery port of RO films desalination unit 9 passes through pipe
Road is connected with reuse water tank 16 (volume 10T)；Scale inhibition is connected on pipeline between second intermediate water tank 15 and RO films desalination unit 9
Agent feed pot 17；The charge door of RO films desalination unit 9 is connected to pickling by pipeline and protects liquid feed pot 91.
The flow that a kind of environment-friendly high-efficiency pickling waste waters processing system provided by the utility model is handled pickling waste waters is such as
Under：
The purpose of wastewater treatment is mainly removal pickling waste waters, oil, SS, salinity etc..Waste water treatment process is selected：
Matting after quartz sand pickling, the main contamination characteristics of such waste water are in acidity and containing dirts such as SS, petroleum-types
Thing is contaminated, according to waste water feature, suitably using techniques such as materialization neutralization precipitation, filtering and absorption.
According to cleaning waste water signature analysis, the waste water belongs to inorganic pollution waste water, and high and low concentration waste water is defeated through pipeline respectively
Grille well is sent to, enters the oil removing of grease removal tank 2 after big floating object impurity is removed through the scraper plate of mechanical grille 1, filtration with manganese sand is entered in overflow
Pond 3 removes manganese ion and a small amount of iron ion.Water after processing enters regulating reservoir 4, and the regulating water quality water in regulating reservoir 4 should
Containing a large amount of quartz powder easily precipitated in pickling waste waters, to prevent quartz sand from being precipitated in regulating reservoir 4, Ying Chi is interior plus matches somebody with somebody
Cover agitator.
Waste water lifting pump is installed in the end of regulating reservoir 4, waste water lifting is led to waste water after the first pond buffering 10, buffering is buffered
Cross overflow downcomer makes it flocculate into flocculation tank 5 by dosing unit 51, is stopped in second-level settling pond 6 after precipitation, on
Supernatant fraction enters the second buffer pool 13, then introduces more medium filter 7 by pipeline pump, and waste water is by there is the quartz of plurality of specifications
Sand, the multi-medium filtering layer of active carbon build-up composition filter out bulky grain colloidal impurity.Containing small colloidal impurity by ultrafiltration list
Member 8 is filtered, and ultra filtration unit 8 filters the big molecular impurity and colloid that may filter that between 0.002-0.1 microns, because microfiltration membranes allow
Small-molecule substance and soluble solid (inorganic salts) etc. pass through, so ultra-filtration water will be carried out after entering the second intermediate water tank 15
Desalting processing, i.e., into RO films desalination unit 9.
The sludge of second-level settling pond 6 is lifted to sludge concentration tank 11 by sludge pump；Then carried out by frame plate type pressure filter 12 pre-
Concentration, dry mud inserts incinerator after mechanical dehydration.
(1) grid+scraper plate
Acid flushing waste water flows into grid pond 1 through sewer, and grid is may to block water pump assembly and pipeline for removing
The larger suspension of valve, and ensure that follow-up facility can normally be run.Grid is that have one group of parallel metal grizzly bar and framework
Composition, tilts the channel installed and intake again, or enters at the import of pump works sump, to intercept suspension thick in sewage
And impurity.Due to containing the solid particle impurity such as quartz sand in the waste water produced by pickling in this engineering, to prevent to grid
Block, scraper plate need to be added.
(2) manganese sand oil removal settling tank
Grease removal tank is separated except floatability oily substance in oily waste water using oil removal floating method, deadens the greasy dirt in waste water
Drift and sedimentation big particle, water outlet overflow enter filtration with manganese sand pond.Manganese sand filtering material can go water removal using contact oxidation method
In the manganese ion, the iron ion that contain.The hydrogen compound of value Mn is gradually adhered on filter material surface, form the activity filter of manganese matter
Film, " the ripe sand of manganese matter " as black or furvous.This ripe sand has contact action, can accelerate oxidation rate, make water
In bivalent manganese be oxidized to value Mn under relatively low pH value condition and be removed.In addition, according to sol particles Preferential adsorption
This rule of same or like particle is constituted with it, contains MnO2Manganese sand can adsorb Mn in water well2+.Relevant research
Think, MnO2Adsorb Mn2+Precipitate and got rid of by filtering because being allowed to be oxidized to the tetravalent oxide of manganese afterwards.
(3) regulating reservoir
The pond sets two, the using and the reserved.Regulating reservoir is to adjust water-in and water-out flow and water quality.Regulating reservoir is connected with soda acid
Bucket, to adjust pH value.Waste water balances the quartz for containing a large amount of free settlings in displacement, equal water transfer matter, the pickling waste waters herein
Stone powder.To prevent silica flour from precipitating, depositing in regulating reservoir, and given up to preferably mix high concentration with low concentration pickling
Liquid, installs supporting agitator additional in the pond, makes it easier to mix and does not result in precipitation blocking in regulating reservoir.
(4) flocculation tank
The pond sets two, the using and the reserved.Regulating reservoir water outlet enters flocculation tank, and water inlet is closed in a pond after collecting completely
Valve, then adds alkali to carry out mechanic whirl-nett reaction, and pH value of waste water is adjusted to 7.5 or so, stops stirring and starts elevator pump reaction
Waste water lifting afterwards is to second-level settling pond.
Current are initially entered to be set in full-automatic chemical medicine and throwing device in the chemical neutralization reaction area of the equipment, the area,
Make after pickling waste waters and medicament haptoreaction its molecular structure change generation not readily dissolve with sl. sol. chemical compositions,
Coagulating is carried out by adding medicine in Shi Yugai areas of coagulating settling vessel coagulating area.Because pickling waste waters concentration
Higher, a lot of finely ground particles or slightly soluble materials form stabilized zone in water, neither rise nor settle, and add demulsifier coagulation
Tiny particle in water thing is destroyed with micro-soluble material stabilized zone after reaction, forms particulate matter sedimentation with rising compared with light particle thing.Now
Another medicine flocculant is added, the medicine has powerful network aggregation, size particles thing in water is gathered by bridge formation net
Together, the faster sinking speed of bulky grain thing drives small particle sedimentation, when adding sinking speed and shortening particulate matter precipitation
Between, last water enters settling zone.
(5) second-level settling pond
Through the waste water after dosing aggregation, by being pumped into tube settler, passed through by the poly- particulate matter of net with current
Separation inclined tube when with own wt be precipitated to coagulating settling vessel mud collection area (a large amount of fluorides and other pollutants herein with
Sediment discharge) waste water by separated in settling zone it is oblique into wastewater supernatant fluid rise through separation inclined tube enter subordinate processing；
Waste water carries out separation of solid and liquid in sedimentation basin, and clear water gravity flow in top enters intermediate pool, and base sludge regular discharge is dense to sludge
Contracting pond.
(6) multi-medium filtering
About it is down to by the waste water suspension of flocculation, settling vessel within 100mg/l, by pressurizeing after being buffered through intermediate water tank
Pump is promoted to more medium filter.Waste water passes through to suspend in the filter layer being made up of plurality of specifications quartz sand, active carbon build-up, water
Thing and the bulky grain colloid substances of a large amount of chemical reaction generations are filtered out.Minute impurities, colloid also need to ultrafiltration system processing.
(7) ultrafiltration system
Hyperfiltration technique is a kind of membrane filter technique, and it isolates 0.002-0.1 microns in containing fine-grained medium from surrounding
Between big molecular impurity and colloid, its general principle is at normal temperatures, with certain pressure and flow, to utilize asymmetric microcellular structure
With semi-transparent film medium, by film both sides pressure differential as motive force so as to reach separation, classification, purifying, concentration purpose one
Plant new membrane separation technique.Compared with traditional separation method, hyperfiltration technique has the characteristics that：
1. it is to carry out at normal temperatures to filter journey, mild condition is thus particularly suitable to thermo-responsive material without component damage,
Such as medicine, enzyme, the separation of fruit juice, classification, concentration and enrichment.
2. filtering journey not undergoing phase transition, without heating, energy consumption is low, pollution-free without adding chemical reagent, is a kind of section
The isolation technics of energy environmental protection.
3. hyperfiltration technique separative efficiency is high, the concentration of recovery, low concentration solution to the micro constitutent in weak solution is non-
Chang Youxiao.
4. ultra-filtration process is only with power of the pressure as UF membrane, therefore separator is simple, flow is short, operation is simple
Just, easily controllable and maintenance.
Because microfiltration membranes allow passing through for small-molecule substance and soluble solid (inorganic salts) etc., so ultra-filtration water enters
Desalting processing is carried out after intermediate water tank, i.e., into RO film desalination systems.
(8) RO films desalination unit
RO reverse osmosis membranes aperture as low as nanoscale, under pressure, H2O molecules can be by RO films, and in water
The impurity such as inorganic salts, heavy metal ion, organic matter, colloid, bacterium, virus can not be by RO films, so that what can be passed through is pure
Water and the condensed water that can not be passed through strictly make a distinction.Its life-span is 3 years under normal usage, needs periodically to add during use
Antisludging agent and pickling protect liquid to ensure that RO films are not blocked.
(9) Treatment of Sludge
Using frame plate type pressure filter, its maximum superiority is exactly malleation, the dehydration of high pressure pressure, more traditional vacuum filter
The pressure difference of machine is much bigger, thus moisture of filter cake is low, less energy consumption, and metal loss is few, and filtrate is as clear as crystal.Filter press is all at present
It is only in industrial filter machine to can ensure that moisture of filter cake reaches less than 10%, and the excellent equipment of flocculant can be not added with.
Waste water in this waste water treatment engineering is made up of two kinds of waste water：Spent acid is remained after pickling waste waters, pickling, life is useless
Water, total Water 1000t/d, specific water quality and quantity such as following table：
| Sequence number | Project name | Numerical value |
| 1 | Water | 1000T/d |
| 2 | PH value | 1~3 |
| 3 | Ss suspended solid | ≤800mg/L |
| 4 | BOD5 | ≤150mg/L |
| 5 | CODcr | ≤7000mg/L |
| 6 | F- | ≤1000mg/L |
| 7 | Fe | ≤600mg/L |
| 8 | Mn | ≤5.0mg/L |
| 9 | NH3-N | ≤20mg/L |
| 10 | Oil | ≤50mg/L |
Treatment scale：Designed by 1000t/d treating capacities.
Operating time >=8000 hour/year.
Sewage quality is discharged into town sewer water grade standard according to sewage after processing, as shown in the table：
National comprehensive wastewater discharges secondary standard
It should be noted that above example is only unrestricted to illustrate the technical solution of the utility model.Although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to reality
Modified with new technical scheme or equivalent substitution, without departing from the scope of technical solutions of the utility model, it all should
Cover in right of the present utility model.
Claims (10)
1. a kind of environment-friendly high-efficiency pickling waste waters processing system, it is characterised in that the processing system includes：
Grid pond, if water inlet, and go out to install grid in water inlet, scraper plate is set on grid；
Grease removal tank, water inlet is connected by pipeline with the grid pond delivery port；
Filtration with manganese sand pond, water inlet is connected by pipeline with the grease removal tank delivery port, and filter membrane is manganese matter active filter film；
Regulating reservoir, water inlet is connected by pipeline with filtration with manganese sand pond delivery port, inside sets agitator, and charge door passes through pipeline
Connected with soda acid charging basket；
Flocculation tank, water inlet is connected by pipeline with the regulating reservoir delivery port, and water intaking valve, including edge are set on inlet pipeline
Neutralization reaction area and coagulating area that water (flow) direction is set gradually, inside set agitating unit, neutralization reaction area and coagulating area
Pass through the external dosing unit of pipeline respectively；
Second-level settling pond, water inlet is connected by pipeline with the flocculation tank delivery port, inside sets coagulating settling vessel, shape
The separation of solid and liquid processing of paired waste water；
More medium filter, water inlet is connected by pipeline with the second-level settling pond liquid outlet, setting multi-medium filtering in it
Layer；
Ultra filtration unit and RO film desalination units are sequentially connected by pipeline, ultra filtration unit water inlet passes through pipeline and the multimedium
Filter delivery port is connected.
2. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the grid is by one
The parallel metal grizzly bar of group is constituted with framework, is tiltedly mounted on pickling waste waters water inlet, or enter entering for pump works sump
At mouthful, the interception to thick suspension and impurity in pickling waste waters is formed.
3. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the grease removal tank with
Filtration with manganese sand pond connects for horizontal Tile, in waste water outflow to the filtration with manganese sand pond after grease removal tank processing.
4. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the regulating reservoir number
Measure as 2, a preparation and a use.
5. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the regulating reservoir with
Set between flocculation tank and waste water lifting pump is set on the first buffer pool, the pipeline that regulating reservoir is connected with the first buffer pool, first delays
Pond is rushed to be connected with the flocculation tank by overflow downcomer.
6. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1 or 5, it is characterised in that the flocculation
Reaction tank quantity is 2, a preparation and a use.
7. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the two-stage precipitation
Pond also sets refluxing opening, and supernatant liquor after precipitation is back into the flocculation tank by return duct；Second-level settling pond bottom is dirty
Mud is sequentially connected by pipeline with sludge concentration tank, plate and frame type filter-press, the pipeline between second-level settling pond and sludge concentration tank
It is provided with sludge pump.
8. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the two-stage precipitation
The second buffer pool is set between pond and more medium filter.
9. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the multimedium mistake
Filtering layer is formed by quartz sand and active carbon build-up.
10. a kind of environment-friendly high-efficiency pickling waste waters processing system according to claim 1, it is characterised in that the multimedium
The first intermediate water tank is provided between filter and ultra filtration unit；The second middle water is provided between ultra filtration unit and RO film desalination units
Case；RO film desalination unit delivery ports are connected with reuse water tank by pipeline；Between second intermediate water tank and RO film desalination units
Antisludging agent feed pot is connected on pipeline；The RO films desalination unit charge door is connected to pickling by pipeline and protects liquid feed pot.
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| CN112607901A (en) * | 2020-12-09 | 2021-04-06 | 中冶京诚工程技术有限公司 | Comprehensive wastewater treatment system and method for steel industry |
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| CN112607901A (en) * | 2020-12-09 | 2021-04-06 | 中冶京诚工程技术有限公司 | Comprehensive wastewater treatment system and method for steel industry |
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