CN108002657A - A kind of sewage treatment process - Google Patents
A kind of sewage treatment process Download PDFInfo
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- CN108002657A CN108002657A CN201711413229.8A CN201711413229A CN108002657A CN 108002657 A CN108002657 A CN 108002657A CN 201711413229 A CN201711413229 A CN 201711413229A CN 108002657 A CN108002657 A CN 108002657A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000010865 sewage Substances 0.000 title claims abstract description 37
- 230000008569 process Effects 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 238000004062 sedimentation Methods 0.000 claims abstract description 34
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 23
- 239000011574 phosphorus Substances 0.000 claims abstract description 23
- 238000005273 aeration Methods 0.000 claims abstract description 22
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 8
- 244000005700 microbiome Species 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000010802 sludge Substances 0.000 claims description 28
- 238000000746 purification Methods 0.000 claims description 7
- 238000005660 chlorination reaction Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 229940037003 alum Drugs 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 239000000645 desinfectant Substances 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000010954 inorganic particle Substances 0.000 claims 1
- 230000000813 microbial effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004177 carbon cycle Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- TVHALOSDPLTTSR-UHFFFAOYSA-H hexasodium;[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O TVHALOSDPLTTSR-UHFFFAOYSA-H 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- DJFBJKSMACBYBD-UHFFFAOYSA-N phosphane;hydrate Chemical compound O.P DJFBJKSMACBYBD-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2209/18—PO4-P
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
Abstract
The invention discloses a kind of sewage treatment process：Raw water is after grid filtration, remove thick material in water removal, flowing through makes the regulating reservoir of water stabilization, aerated grit chamber is promoted to through pump sink larger particles impurity in water again, aeration tank end is provided with total phosphorus on-line detector, data are detected according to detector and add Dephosphorization reagent in next process primary sedimentation pond, subsequent water outlet flows into aeration tank aeration, form a kind of floccule body for being easy to precipitation, and then precipitated through secondary sedimentation tank, water outlet flows into membrane module, water after membrane module filters, sterilized device carries out disinfection again, kill microorganism in water, finally discharged or utilized.The present invention adds total phosphorus on-line detector in sewage treatment process, and by monitoring total phosphorus content in water in real time, subsequently to be there is a dephosphorization being directed to, dephosphorizing rate is stablized, and is affected by other factors minimum, and it is few to substitute into secondary pollution.
Description
Technical field
The present invention relates to a kind of sewage treatment process.
Background technology
China is the country of a scarcity of fresh water resources, only 2300 cubic metres per capita, is only the 1/ of world average level
4, it is 13, the whole world one of poorest country of water resource per capita.And in fact, not depositing the water of essence in nature, either
In natural water or all kinds of sewage, waste water, all containing a certain number of impurity.The purification of water, the recycling of water resource, it is more next
More attracted people's attention.
Sewage treatment process is according to actual conditions and the requirement of scale, water quality characteristic, the environment of receiving water body and locality, profit
With physics, chemistry, biotechnology, by retaining, settling, coagulation, neutralization, aeration, the concrete mode such as disinfection water body is carried out it is net
Change.
In existing technology, generally biological dephosphorization principle and technique are being used.In water phosphorus with orthophosphates, Quadrafos and
Three kinds of forms of organophosphor exist, wherein 10% or so solid phase is present in water.There are about 10% phosphorus can in primary sedimentation pond quilt
Remove, equivalent to the solid-state phosphorus content in sewage.During Aerobic biological process, battalion of the dirty water part phosphorus as microorganism
Thing is supported by cell assimilation, solid-state is converted into and is removed.Its removal rate depends on the yield of activated sludge.Common dephosphorization
Technique has A/O techniques or endogenous carbon cycle to utilize biological denitrification process.Its removal rate is unstable, nitrogen in receptor 1 activity sludge and sewage
Content has a great influence.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of sewage treatment process of chemical dephosphorization, it is in process
There is provided total phosphorus on-line detector, by monitoring in real time, increases and decreases Dephosphorization reagent total amount.
In order to solve the above technical problems, the technical scheme is that
A kind of sewage treatment process, the technique include the following steps：
S1：Raw water flows through grid, and thick material is trapped in water；
S2：Water outlet through S1 steps flows into regulating reservoir, adjusts pH value, the stabilizing water quality of sewage；
S3：Pump is promoted to aerated grit chamber by water is adjusted, and goes the bigger inorganic particulates of proportion such as water removal sand grains, debris
Grain；
S4：Water outlet through S3 steps, flows through the total phosphorus on-line detector for being arranged on aerated grit chamber water outlet, according to described
Total phosphorus on-line computing model detects data；
S5：Water outlet through S4 steps is flowed into primary sedimentation pond, removes the slow colloidal particles of natural subsidence in water removal；
And according to total phosphorus on-line detector data in S6, Dephosphorization reagent is put into primary sedimentation pond；
S7：Water outlet through S6 steps flows into aeration tank and secondary sedimentation tank；The aeration tank utilizes micro- life in activated sludge
Thing does sewage further purification；The secondary sedimentation tank is removing biological suspended solids；
S8：Water outlet through S7 steps, into membrane module, removes the material that molecular weight is more than 500；
S9：Water outlet through S8 steps, into chlorination equipment, removes microorganism in water, the discharge of final purification water or reuse.
As a preferred embodiment, the grid tilts 50 ° -60 °, and grid gap is 20-25mm.
As a preferred embodiment, the grid is circumgyration formula mechanical grille or caterpillar machinery grid.
As a preferred embodiment, the Dephosphorization reagent is sodium chlorate-alum or/and lime-molysite.
As a preferred embodiment, Dephosphorization reagent is put into the secondary sedimentation tank.
As a preferred embodiment, the secondary sedimentation tank bottom is provided with sludge reflux pipeline and mud discharging mouth；Institute
Sludge reflux pipeline one end is stated with aeration tank water inlet end to be connected；Activated sludge process is built altogether with secondary sedimentation tank in the aeration tank.
As a preferred embodiment, the membrane module is hyperfiltration membrane assembly.
As a preferred embodiment, the chlorination equipment is that ozone generating-device, ultraviolet lamp or chemical reagent launch dress
Put.
As a preferred embodiment, the sludge of the mud discharging mouth discharge, concentrated, digestion, pretreatment, dehydration, drying are burnt
After burning step, final disposal is carried out.
As a preferred embodiment, the chemical reagent that the chemical reagent delivery device is launched is chlorine-containing disinfectant.
Beneficial effects of the present invention are：Total phosphorus on-line detector is added in sewage treatment process, by monitoring water in real time
Middle total phosphorus content, subsequently to be there is the dephosphorization being directed to, dephosphorizing rate is stablized, and is affected by other factors minimum, the secondary dirt of substitution
Dye is few；Activated sludge process is built in aeration tank altogether with secondary sedimentation tank, considerably increases the utilization rate of resource.
Brief description of the drawings
Fig. 1 is sewage treatment process figure.
Embodiment
This case provides a kind of sewage treatment process, and the technique includes the following steps：
S1：Raw water flows through grid, and thick material is trapped in water；
S2：Water outlet through S1 steps flows into regulating reservoir, adjusts pH value, the stabilizing water quality of sewage；
S3：Pump is promoted to aerated grit chamber by water is adjusted, and goes the bigger inorganic particulates of proportion such as water removal sand grains, debris
Grain；
S4：Water outlet through S3 steps, flows through the total phosphorus on-line detector for being arranged on aerated grit chamber water outlet, according to described
Total phosphorus on-line computing model detects data；
S5：Water outlet through S4 steps is flowed into primary sedimentation pond, removes the slow colloidal particles of natural subsidence in water removal；
And according to total phosphorus on-line detector data in S6, Dephosphorization reagent is put into primary sedimentation pond；
S7：Water outlet through S6 steps flows into aeration tank and secondary sedimentation tank；The aeration tank utilizes micro- life in activated sludge
Thing does sewage further purification；The secondary sedimentation tank is removing biological suspended solids；
S8：Water outlet through S7 steps, into membrane module, removes the material that molecular weight is more than 500；
S9：Water outlet through S8 steps, into chlorination equipment, removes microorganism in water, the discharge of final purification water or reuse.
First procedure of this technique is grid, it is placed on the front end of the technique, mainly removes the thick thing of water removal kind
Matter, such as grains of sand, small troubled times, branch, dish leaf, rubbish, cloth waste, to protect the mechanical equipment for the treatment of plant, particularly pump damage,
And prevent pipeline blockage.Water its state labile after grid filtration, sets regulating reservoir behind, adjusts the PH, steady of sewage
Determine water quality, prepare for postorder；Aerated grit chamber removes the larger impurity of particle in water removal, it is mainly carried out certainly by the gravity of impurity
Main sedimentation, so that impurity is separated with water；Set total phosphorus to monitor on-line in the water outlet of aeration tank, detect total phosphorus in water
Content, then carries in subsequent primary sedimentation pond and adds Dephosphorization reagent, targetedly to remove phosphor in sewage.Primary sedimentation pond
In water flow into aeration tank be aerated.Air is constantly injected in the aeration tank into sanitary sewage, maintains water middle reaches enough
Dissolved oxygen, through after a period of time, forming a kind of floccule body in sewage, this floccule body is by prolific microorganism structure
Into being easy to precipitate, precipitated after through secondary sedimentation tank.After secondary sedimentation tank precipitates, water outlet flows into membrane module, through membrane module mistake
Filter, may filter that particle minimum in water.Water after membrane module filters, then sterilized device carry out disinfection, and kill micro- in water
Biology, so that it may carry out final discharge or utilization.
As another embodiment of this case, the grid tilts 50 ° -60 °, and grid gap is 20-25mm.The retention effect of grid
Fruit depends on gap width and the property of water.Grid gap is narrower, and the retention of water is better, but it also more be easy to cause blocking, clearly
Except the frequency of grid is just higher.When the gap of grid is 20-25mm, it understands frequency moderate, it is right can be thick in trap water well
Big impurity.When grid is tilted 50 ° -60 °, it is easier to clear up the material retained on grid.
As another embodiment of this case, the grid is circumgyration formula mechanical grille or caterpillar machinery grid.Using
It is mechanical to remove grid, hand labor intensity can be mitigated.
As another embodiment of this case, the Dephosphorization reagent is sodium chlorate-alum or/and lime-molysite.
As another embodiment of this case, Dephosphorization reagent is put into the secondary sedimentation tank.Always put into and remove in secondary sedimentation tank
Phosphorus medicament, can further dephosphorization.This step is, when detected total phosphorus content is higher, to carry out secondary input medicament.Or
Secondary sedimentation tank water sample is taken, is detected, when total phosphorus content is higher in water, carries out secondary input medicament.
As another embodiment of this case, the secondary sedimentation tank bottom is provided with sludge reflux pipeline and mud discharging mouth；
Described sludge reflux pipeline one end is connected with aeration tank water inlet end；Activated sludge process is built altogether with secondary sedimentation tank in the aeration tank.
Secondary sedimentation tank produces activated sludge, and the activated sludge enters aeration tank together with sewage, become suspension by return line
Mixed liquor, is aerated along aeration tank injecting compressed air, sewage and activated sludge is sufficiently mixed contact, and it is enough to supply mixed liquor
Dissolved oxygen.At this moment the organic matter in sewage is decomposed by the aerobe colony in activated sludge, and then mixed liquor enters secondary
Sedimentation basin.Since activated sludge constantly increases in processing procedure, some residual sludge is discharged from system, to maintain system steady
It is fixed.
As another embodiment of this case, the membrane module is hyperfiltration membrane assembly.The film raw material of hyperfiltration membrane assembly is acetic acid
Cellulose or polysulfonamides etc., but leave out heat treatment step, make manufactured ultrafiltration membrane aperture larger, can be in less pressure
It is small, there is larger flux.
As another embodiment of this case, the chlorination equipment is ozone generating-device, ultraviolet lamp or chemical reagent launch dress
Put.
As another embodiment of this case, the sludge of the mud discharging mouth discharge, concentrated, digestion, pretreatment, dehydration, drying
After burn down step, final disposal is carried out.In waster water process is handled, the processing of sludge is also most important.Conducted oneself well if sludge is improper
Reason, any discharge, will polluted-water, soil and air, endanger environment, influence human health.By the sludge more than water content, into
After row solidification processing, final process is carried out, reduces the volume of sludge.
As another embodiment of this case, the chemical reagent that the chemical reagent delivery device is launched is chlorine-containing disinfectant.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Realize other modification, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details.
Claims (10)
1. a kind of sewage treatment process, it is characterised in that the technique includes the following steps：
S1：Raw water flows through grid, and thick material is trapped in water；
S2：Water outlet through S1 steps flows into regulating reservoir, adjusts pH value, the stabilizing water quality of sewage；
S3：Pump is promoted to aerated grit chamber by water is adjusted, and removes the bigger inorganic particles of proportion such as water removal sand grains, debris；
S4：Water outlet through S3 steps, flows through the total phosphorus on-line detector for being arranged on aerated grit chamber water outlet, according to the total phosphorus
On-line computing model detects data；
S5：Water outlet through S4 steps is flowed into primary sedimentation pond, removes the slow colloidal particles of natural subsidence in water removal；And root
According to total phosphorus on-line detector data in S6, Dephosphorization reagent is put into primary sedimentation pond；
S7：Water outlet through S6 steps flows into aeration tank and secondary sedimentation tank；The aeration tank utilizes Microbial Communities in Activated Sludge pair
Sewage does further purification；The secondary sedimentation tank is removing biological suspended solids；
S8：Water outlet through S7 steps, into membrane module, removes the material that molecular weight is more than 500；
S9：Water outlet through S8 steps, into chlorination equipment, removes microorganism in water, the discharge of final purification water or reuse.
2. sewage treatment process according to claim 1, it is characterised in that：The grid tilts 50 ° -60 °, grid gap
For 20-25mm.
3. sewage treatment process according to claim 1, it is characterised in that：The grid is circumgyration formula mechanical grille
Or caterpillar machinery grid.
4. sewage treatment process according to claim 1, it is characterised in that：The Dephosphorization reagent for sodium chlorate-alum or/
With lime-molysite.
5. sewage treatment process according to claim 1, it is characterised in that：Dephosphorization medicine is put into the secondary sedimentation tank
Agent.
6. sewage treatment process according to claim 1, it is characterised in that：The secondary sedimentation tank bottom is provided with
Sludge reflux pipeline and mud discharging mouth；Described sludge reflux pipeline one end is connected with aeration tank water inlet end；The aeration tank with it is secondary
Sedimentation basin builds activated sludge process altogether.
7. sewage treatment process according to claim 1, it is characterised in that：The membrane module is hyperfiltration membrane assembly.
8. sewage treatment process according to claim 1, it is characterised in that：The chlorination equipment for ozone generating-device,
Ultraviolet lamp or chemical reagent delivery device.
9. sewage treatment process according to claim 6, it is characterised in that：The sludge of the mud discharging mouth discharge, concentrated,
After digestion, pretreatment, dehydration, drying and incinerating step, final disposal is carried out.
10. sewage treatment process according to claim 8, it is characterised in that：The chemical reagent delivery device is launched
Chemical reagent be chlorine-containing disinfectant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711413229.8A CN108002657A (en) | 2017-12-24 | 2017-12-24 | A kind of sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711413229.8A CN108002657A (en) | 2017-12-24 | 2017-12-24 | A kind of sewage treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108002657A true CN108002657A (en) | 2018-05-08 |
Family
ID=62061016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711413229.8A Pending CN108002657A (en) | 2017-12-24 | 2017-12-24 | A kind of sewage treatment process |
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| Country | Link |
|---|---|
| CN (1) | CN108002657A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108840516A (en) * | 2018-06-23 | 2018-11-20 | 安徽拓谷物联科技有限公司 | Solar energy wind light mutual complementing key village sewage disposal technology |
| CN109095723A (en) * | 2018-09-18 | 2018-12-28 | 林阿成 | Microorganism is aerated reflow type sewage-treatment plant |
| CN112978822A (en) * | 2021-03-11 | 2021-06-18 | 广东新一代工业互联网创新技术有限公司 | Tail end processing device with water quality monitoring function and using method |
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| CN116606035B (en) * | 2023-06-30 | 2023-12-29 | 广西建工科净源生态环保产业投资有限公司 | Sewage treatment system and treatment method |
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