CN108467165A - A kind of efficient dephosphorization rural domestic sewage treatment system - Google Patents
A kind of efficient dephosphorization rural domestic sewage treatment system Download PDFInfo
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- 238000011282 treatment Methods 0.000 title claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 239000010802 sludge Substances 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 25
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- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
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- 230000008569 process Effects 0.000 description 4
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- 239000003344 environmental pollutant Substances 0.000 description 3
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Activated Sludge Processes (AREA)
Abstract
A kind of efficient dephosphorization rural domestic sewage treatment system, including sewage treatment unit, sludge treating block and control unit, the sewage treatment unit includes mainly sequentially connected setting pot, meat food processing pond, reaction stirring pool, inclined-tube sedimentation tank, the first intermediate pool, the ponds CASS, flotation tank, the second intermediate pool, extra quality filter and adjusts pond eventually；The sludge treating block includes mainly sequentially connected sludge-tank, sludge concentration tank and filter press；Described control unit includes mainly PLC controller, and this system scientific structure design, Automatic Control, energy consumption are small and effluent characteristics are stablized.
Description
Technical field
The present invention relates to treatment of Phosphorus Containing Waste Water field more particularly to a kind of efficient dephosphorization rural domestic sewage treatment systems.
Background technology
Sanitary sewage is the waste water being discharged in resident's daily life, is mainly derived from residential architecture and public building, is such as lived
Between residence, organ, school, hospital, shop, public place and industry hygiene etc..Pollutant contained by sanitary sewage is mainly
Organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen) and a large amount of pathogenic microorganisms (such as parasitic ovum and intestines
Road transmission virus etc.).The organic matter being present in sanitary sewage is extremely unstable, is easy corruption and generates stench.Bacterium and cause of disease
Body using organic matter in sanitary sewage as nutrition mass propagation, infectious disease from spreading can be caused popular.Therefore, before sanitary sewage discharge
It must be handled.
In addition, in production waste it is main it is phosphorous, COD, SS are exceeded, and drainage system is same draining system with sanitary sewage
Processing can not be collected separately in system, phosphorus-containing wastewater, so that phosphorous etc. exceeded in sanitary sewage, many lives are dirty currently on the market
Water treatment facilities all has phosphorus removal functional, but most processing modes is to use activated sludge process, is generally made in such mode
With aerobic tank and secondary settling tank etc., floor space is larger, and energy consumption is higher.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of scientific structure design, entirely certainly
A kind of efficient dephosphorization rural domestic sewage treatment system that dynamic control, energy consumption be small and effluent characteristics are stablized.
Following technical scheme is provided to realize the present invention：A kind of efficient dephosphorization rural domestic sewage treatment system, including dirt
Water treatment unit, sludge treating block and control unit, the sewage treatment unit includes mainly sequentially connected setting pot, pre-
Expose regulating reservoir, reaction stirring pool, inclined-tube sedimentation tank, the first intermediate pool, the ponds CASS, flotation tank, the second intermediate pool, extra quality mistake
Filter and eventually tune pond；The sludge treating block includes mainly sequentially connected sludge-tank, sludge concentration tank and filter press；It is described
Setting pot side wall is equipped with water inlet, and the water inlet is equipped with mechanical grille；It is single that several aerations are equipped in the meat food processing pond
Member, the aeration unit include that the radial boring aeration pipe that air inlet is responsible for, the air inlet are responsible for and are connected in air inlet
Supervisor's connection is connect with wind turbine；Agitating device is equipped in the reaction stirring pool, the agitating device includes stirring motor, stirring
Axis and the stirring blade being connected on agitating shaft；The inclined-tube sedimentation tank water outlet is equipped with overflow launder, the overflow launder and the
One intermediate pool connects；It is equipped with pre-reaction pond and main reaction pond in the ponds CASS, granular filler is equipped in the pre-reaction pond,
Main reaction bottom of pond portion is equipped with aeration head, and middle part is equipped with tow shape elastic biological filler, is equipped with and strains above the main reaction pond
Hydrophone, side wall are equipped with outlet pipe；Filtrate is equipped in the extra quality filter；The filtrate is quartz sand and anthracite；It is described oblique
Pipe sedimentation basin and air supporting bottom of pond portion are equipped with sludge out pipe, and the sludge out pipe is connect with sludge-tank；Described control unit includes mainly
PLC controller.
Preferably, being equipped with 2 in the setting pot, meat food processing pond, the first intermediate pool and the second intermediate pool
Waste water lifting pump and 2 sets of fluid level controllers.
Preferably, the aeration unit in the meat food processing pond is at least 4.
Preferably, it is equipped with grug feeding jar on the reaction stirring pool, flotation tank, whole tune pond and sludge concentration tank, it is described
Control valve is equipped on grug feeding jar, described adjust in pond eventually is additionally provided with PH value detector.
Preferably, the wind turbine, stirring motor, waste water lifting pump, fluid level controller, control valve and PH value detector are equal
It is connect with PLC controller.
Usefulness of the present invention：First, this system uses the ponds CASS, and floor space is small, and investment is relatively low；Operation energy consumption
Low, processing cost is few；Second, granular filler is set in the pre-reaction pond of the ponds CASS, helps to slow down flow velocity, while pre-processing effect
Fruit is more preferable, and tow shape elastic biological filler is arranged in main reaction pond, contributes to bio-film colonization, Aerobic Process for Treatment effect more preferable；The
Three, 2 waste water lifting pumps and 2 sets of liquid are equipped in setting pot, meat food processing pond, the first intermediate pool and the second intermediate pool
Level controller, such a set of use of design is another set of spare, improves efficiency；Third, whole system are controlled by PLC controller,
Realize automation.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is CASS pool structure schematic diagrames.
In figure：1 be setting pot, 1.1 be water inlet, 1.2 be mechanical grille, 2 be meat food processing pond, 2.1 be aeration unit,
2.1.1 it is air inlet supervisor, 2.1.2 to be boring aeration pipe, 3 be reaction stirring pool, 3.1 be agitating device, 3.1.1 be stirring electricity
Machine, 3.1.2, which are agitating shaft, 3.1.3, to be stirring blade, 4 be inclined-tube sedimentation tank, 4.1 be overflow launder, 5 be the first intermediate pool, 6
It is the ponds CASS, 6.1 to be pre-reaction pond, 6.1.1 be granular filler, 6.2 be main reaction pond, 6.2.1 be aeration head, 6.2.2 be bullet
Property biologic packing material, 6.2.3, which are water decanter, 6.2.4, to be outlet pipe, 7 be flotation tank, 8 be the second intermediate pool, 9 be extra quality filtering
Device, 9.1 be filtrate, 10 be adjust eventually pond, 11 be sludge-tank, 12 be sludge concentration tank, 13 be filter press, 14 be wind turbine, 15 be
Mud pipe, 16 be PLC controller, 17 be waste water lifting pump, 18 be fluid level controller, 19 be grug feeding jar, 20 be control valve, 21 be PH
It is worth detector.
Specific implementation mode
A kind of efficient dephosphorization rural domestic sewage treatment system, including sewage treatment unit, sludge treating block and control
Unit, the sewage treatment unit are mainly heavy including sequentially connected setting pot 1, meat food processing pond 2, reaction stirring pool 3, inclined tube
Shallow lake pond 4, the first intermediate pool 5, the ponds CASS 6, flotation tank 7, the second intermediate pool 8, extra quality filter 9 and whole tune pond 10；It is described
Sludge treating block includes mainly sequentially connected sludge-tank 11, sludge concentration tank 12 and filter press 13；1 side wall of the setting pot
Equipped with water inlet 1.1, mechanical grille 1.2 is equipped at the water inlet 1.1；It is single that several aerations are equipped in the meat food processing pond 2
Member 2.1, the aeration unit 2.1 include that air inlet supervisor 2.1.1 is exposed with the radial perforation for being connected to air inlet supervisor 2.1.1
Tracheae 2.1.2, the air inlet supervisor 2.1.1 connections are connect with wind turbine 14；Agitating device 3.1 is equipped in the reaction stirring pool 3,
The agitating device 3.1 includes stirring motor 3.1.1, agitating shaft 3.1.2 and the stirring blade being connected on agitating shaft 3.1.2
3.1.3；4 water outlet of the inclined-tube sedimentation tank is equipped with overflow launder 4.1, and the overflow launder 4.1 is connect with the first intermediate pool 5；
It is equipped with pre-reaction pond 6.1 and main reaction pond 6.2 in the ponds CASS 6, granular filler 6.1.1 is equipped in the pre-reaction pond 6.1,
6.2 bottom of main reaction pond is equipped with aeration head 6.2.1, and middle part is equipped with tow shape elastic biological filler 6.2.2, the main reaction
6.2 top of pond is equipped with water decanter 6.2.3, and side wall is equipped with outlet pipe 6.2.4；Filtrate 9.1 is equipped in the extra quality filter 9；Institute
It is quartz sand and anthracite to state filtrate 9.1；The inclined-tube sedimentation tank 4 and 7 bottom of flotation tank are equipped with sludge out pipe 15, the mud extraction
Pipe 15 is connect with sludge-tank 11；Described control unit includes mainly PLC controller 16, the setting pot 1, meat food processing pond 2, the
2 waste water lifting pumps 17 and 2 sets of fluid level controllers 18, the pre-exposure tune are equipped in one intermediate pool 5 and the second intermediate pool 8
It saves the aeration unit 2.1 in pond 2 and is at least 4, the reaction stirring pool 3, adjusts pond 10 and sludge concentration tank 12 at flotation tank 7 eventually
On be equipped with grug feeding jar 19, be equipped with control valve 20 on the grug feeding jar 19, described adjust in pond 10 eventually is additionally provided with PH value detector
21, the wind turbine 14, stirring motor 3.1.1, waste water lifting pump 17, fluid level controller 18, control valve 20 and PH value detector 21
It is connect with PLC controller 16.
This system technological process：
1, setting pot
Mechanical grille can remove the rubbish impurity in sewage, avoid the blocking of pipeline, inclined-tube sedimentation tank filler, effectively ensure
The normal operation of follow-up equipment effectively reduces aftertreatment device live load, improves the effluent quality of equipment, waste water is through machine
Tool grid flow to setting pot certainly after being separated by solid-liquid separation, and further allows the sand grain contamination precipitation in production waste water to remove, sinks
Sand pond is concrete structure.
2, meat food processing pond
Greatly due to phosphorous sanitary wastewater water quality, water variation, in order to adapt to this variation, spy, which is provided with meat food processing pond, makes waste water
Abundant homogeneous, and preaeration is carried out to waste water, prevent the organic impurities in waste water from precipitating, while the organic matter in waste water being made to drop
Solution, meat food processing pond are reinforced concrete structure, and aerating system is supplied by wind turbine, using boring aeration mode, gas-water ratio：5：1；Pre-exposure
An emergent bypass line is set up in regulating reservoir, and waste water lifting pump 2 is set in pond（The using and the reserved）, 2 sets of waste water pump fluid level controller,
Overhaul the basic auxiliary facilities such as cat ladder.
The waste water of regulating reservoir will be balancedly sent into postorder processing equipment by waste water lifting pump.
3, stirring pool is reacted
This system uses adding method thereof, reaction tank to add Al2 (SO4) 3, PAM, keep medicament and phosphorus, COD, SS in waste water abundant
Reaction form flocculent substance, improve the effect of tube settling, coagulation stirs tank waterpower total residence time 30 minutes, reactive mode
Using mechanic whirl-nett reaction, blender uses stainless steel, and stirring motor is cycloidal planetary gear speed reducer.
4, inclined-tube sedimentation tank
For inclined-tube sedimentation tank mainly by the phosphorus in waste water, COD, SS sedimentation removal, the sewage self-flowing of reacted stirring pool enters inclined tube
Sedimentation basin is precipitated, and inclined tube is loaded in inclined-tube sedimentation tank, and inclined-tube sedimentation tank is according to rectangular sedimentation tank removal dispersibility
The precipitation principle of grain increases pond cross-section of river wetted perimeter after increasing many inclined tubes in pond, while reducing hydraulic radius, to subtract
The turbulent fluctuation of few water, promotes precipitation.In addition having added inclined tube makes particle precipitation distance greatly shorten, and reduces the sedimentation time, precipitation effect
Rate greatly improves.
5, the first intermediate pool
The gravity flow of inclined-tube sedimentation tank supernatant enters the first intermediate pool, is then evacuated to subsequent processing device CASS by waste water lifting pump
Pond carries out advanced treating.Two waste water lifting pumps are set in pond（The using and the reserved）, two sets of fluid level controllers
6, the ponds CASS
CASS divides pre-reaction zone and main reaction region in pond.In pre-reaction zone, microorganism can be rapid by the fast transfer mechanism of enzyme
Most of dissolved organic matter, undergoes the matrix Rapid Accumulation process of a high load capacity, this is to influent quality, water in absorption effluent
Amount, PH and poisonous and harmful substance play preferable cushioning effect, while playing inhibiting effect to the growth of der Pilz, can effectively prevent
Only sludge bulking；Then a substrate degradation process compared with underload is undergone in main reaction region.Cyclic activated sludge system collection reaction, precipitation,
In one, the degradation of pollutant is a plug-flow process in time for draining, function, and microorganism is then in aerobic, anoxic, detests
Among oxygen cyclically-varying, pollutant removal is acted on to reach.
It is provided with pre-reaction zone in the front in the ponds CASS, water installations are strained in rear portion automatically provided with liftable.Its is worked
Journey can be divided into aeration, precipitation and draining three phases, loop cycle and carry out.Sewage continuously enters pre-reaction zone, by partition wall bottom
Portion enters main reaction region, under conditions of ensureing to supply oxygen, makes organic matter by the microbial degradation in pond.It can be right according to influent quality
Operating parameter is adjusted.
8, flotation tank
Due to being handled by the ponds CASS, phosphor-removing effect is also difficult to reach discharging standards, therefore carries out depth using flotation tank
Processing, pneumatically supported operation principle are to form floccule by dosing coagulation, and the micro-bubble that release generates is recycled to attach
On mud granule, it is made to bubble through the water column, then taken away by scraping machine, reaches ideal solid-liquid separation effect, simultaneously because
Sufficient air enters, can further exhaustive oxidation residual organic substances.
9, extra quality filter
Double-layer filter material is loaded in extra quality filter：Quartz sand and anthracite retain dirty impurities in water by double-layer filter material, make sewage
In phosphorus, COD and SS content further decrease, backwash effluent recycling goes to handle again to meat food processing pond.
10, pond is adjusted eventually
It is more than discharge standard due to going out water ph value, so using tune pond adds NaOH eventually or H2SO4 further adjusts pH value, makes it
Qualified discharge.
11, sludge-tank
The sludge precipitated through inclined-tube sedimentation tank, flotation tank is precipitated from sludge-tank is flowed into.
12, sludge concentration tank
Sludge in sludge-tank is discharged into sludge concentration tank to concentrate.
It carries out pressing dry dehydration using the filter press, has many advantages, such as filter cake moisture content bottom, operate easy to maintenance.
13, filter press
Sludge after concentration, which is beaten by screw pump to filter press, to be separated by solid-liquid separation, press filtration discharge sewage return to meat food processing pond into
Row after-treatment, mud cake outward transport processing.
The invention is not limited in a kind of efficient dephosphorization rural domestic sewage treatments involved by above-mentioned specific implementation mode
System, those skilled in the art can also make a variety of variations accordingly, but any be equal or similar change with of the invention
Change should all be covered within the scope of the claims.
Claims (5)
1. a kind of efficient dephosphorization rural domestic sewage treatment system, including sewage treatment unit, sludge treating block and control are single
Member, it is characterised in that：The sewage treatment unit mainly include sequentially connected setting pot, meat food processing pond, reaction stirring pool,
Inclined-tube sedimentation tank, the first intermediate pool, the ponds CASS, flotation tank, the second intermediate pool, extra quality filter and whole tune pond；The dirt
Mud processing unit includes mainly sequentially connected sludge-tank, sludge concentration tank and filter press；The setting pot side wall is equipped with water inlet
Mouthful, the water inlet is equipped with mechanical grille；Several aeration units are equipped in the meat food processing pond, the aeration unit includes
The radial boring aeration pipe on air inlet supervisor is responsible for and is connected in air inlet, and the air inlet supervisor connection is connect with wind turbine；
Agitating device is equipped in the reaction stirring pool, the agitating device includes stirring motor, agitating shaft and is connected on agitating shaft
Stirring blade；The inclined-tube sedimentation tank water outlet is equipped with overflow launder, and the overflow launder is connect with the first intermediate pool；It is described
It is equipped with pre-reaction pond and main reaction pond in the ponds CASS, is equipped with granular filler in the pre-reaction pond, main reaction bottom of pond portion is set
There are aeration head, middle part to be equipped with tow shape elastic biological filler, water decanter is equipped with above the main reaction pond, side wall is equipped with water outlet
Pipe；Filtrate is equipped in the extra quality filter；The filtrate is quartz sand and anthracite；The inclined-tube sedimentation tank and air supporting bottom of pond
Portion is equipped with sludge out pipe, and the sludge out pipe is connect with sludge-tank；Described control unit includes mainly PLC controller.
2. a kind of efficient dephosphorization rural domestic sewage treatment system according to claim 1, it is characterised in that：The sand setting
2 waste water lifting pumps and 2 sets of fluid level controllers are equipped in pond, meat food processing pond, the first intermediate pool and the second intermediate pool.
3. a kind of efficient dephosphorization rural domestic sewage treatment system according to claim 1, it is characterised in that：The pre-exposure
Aeration unit in regulating reservoir is at least 4.
4. a kind of efficient dephosphorization rural domestic sewage treatment system according to claim 1, it is characterised in that：The reaction
Stirring pool, flotation tank, whole adjust are equipped with grug feeding jar on pond and sludge concentration tank, and control valve is equipped on the grug feeding jar, described
It adjusts in pond eventually and is additionally provided with PH value detector.
5. a kind of efficient dephosphorization rural domestic sewage treatment system according to claim 1,2 or 4, it is characterised in that：Institute
Wind turbine, stirring motor, waste water lifting pump, fluid level controller, control valve and PH value detector is stated to connect with PLC controller.
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| CN201810585098.XA CN108467165A (en) | 2018-06-08 | 2018-06-08 | A kind of efficient dephosphorization rural domestic sewage treatment system |
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