CN109502911A - A kind of sewage water treatment method - Google Patents
A kind of sewage water treatment method Download PDFInfo
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- CN109502911A CN109502911A CN201811559451.3A CN201811559451A CN109502911A CN 109502911 A CN109502911 A CN 109502911A CN 201811559451 A CN201811559451 A CN 201811559451A CN 109502911 A CN109502911 A CN 109502911A
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- sewage
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- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
-
- 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- 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)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of sewage water treatment methods, comprising: including following processing step: sewage treating nature water；Factory's anaerobic fermentation sewage adds medicament pretreatment；Precipitating；Sewage quality is adjusted；Internal Electrolysis Process for Treating sewage；Gas floatation process purifies sewage；Level-one ABR anaerobic reaction；Biological contact oxidization treatment sewage；Secondary precipitation；Second level ABR anaerobic reaction；MBR membrane bioreactor purifies sewage；MBR produces water filtering.The method of the present invention is reliable, and efficient, structurally reasonable, adaptable, stable expense is low, cost of investment is low, easy to maintenance, reduces energy consumption, improves operating condition, improves labor efficiency, and guarantees Preliminary sewage treatment effect, to reduce the totle drilling cost of sewage treatment.
Description
Technical field
The invention belongs to environmental technology field, in particular to a kind of sewage water treatment method.
Background technique
With the continuous development of urbanization and the continuous improvement of people's quality of life, people's daily life can be manufactured largely
Sanitary sewage, while will also tend to generate a large amount of industrial wastewaters in the industrial production, the following environmental pollution is also increasingly
Seriously.Therefore, municipal sewage treatment is the major issue that urban development must cope in the process, and whether municipal sewage is handled in place
It is directly related to city dweller's work, life and health.Since these sewage compositions are more complex, contain a large amount of organic compounds
Object, and raw water, in acidity, B/C=3000:25000=0.12 < 0.3, COD value of waste water is higher, and this kind of wastewater disposition will be to the mankind
Living environment cause increasingly severe pollution.It generally requires and the progress primary treatment purification of these sewage is reached into water gauge out
Standard, so that postorder sewage disposal device is further carried out deep purifying.
And the existing generally existing treatment process of city primary sewage disposal system is not perfect at present, processing method is single, place
Manage disadvantage at high cost, that effect is bad.
Summary of the invention
For this purpose, the present invention provides a kind of sewage water treatment methods, to solve the above technical problems.
In order to solve the above technical problems, the technical solution used in the present invention is:
Utilize the sewage water treatment method of above-mentioned sewage disposal system, including following processing step:
Sewage treating nature water:
Sanitary sewage is through the coarse solid content of grid filtration, subsequently into conditioning tank；
Factory's anaerobic fermentation sewage adds medicament pretreatment:
Will factory's anaerobic fermentation sewage inject coagulating basin in add NaOH adjust sewage PH value, add MgCL2 and
Na2HPO4 removes ammonia nitrogen in sewage, and dosing coagulant PAC makes small suspended material in sewage flocculate at big suspended matter, then again
Flocculant PAM is added, to reduce SS and partial organic substances matter in waste water；
Precipitating: the sewage that chemicals treatment is crossed, which is drained into sedimentation basin, to be precipitated, and the pretreated sewage in upper layer enters
It is mixed in conditioning tank, remaining sludge enters in sludge-tank；
Sewage quality is adjusted: above two pretreated sewage is injected into progress water quality adjustment mixing in conditioning tank,
And preaeration stripping is carried out by aerator, reduce the pollutant load in sewage；
Internal Electrolysis Process for Treating sewage: the sewage after adjusting is injected into the Inner electrolysis pond filled with Fe-C filler, HCl is passed through
Chemicals dosing plant adds HCl and sewage is adjusted to slant acidity, using sewage as electrolyte solution, except COD in decontaminated water, improves biochemical
Property；
Gas floatation process purifies sewage: sewage is discharged into the flotation tank that air floatation machine is housed after being electrolysed, and is led in flotation tank
It crosses PAM chemicals dosing plant and flocculant PAM is added, achieve the purpose that separation of solid and liquid；Flotation tank water outlet enters level-one ABR reaction tank, floats
Slag enters sludge-tank；
Level-one ABR anaerobic reaction: flotation tank is discharged in level-one ABR reaction tank, is degraded by the effect of anaerobe
The pollutant of macromolecular in water, improves the biodegradability of sewage, creates conditions for later waste water aerobic biochemical treatment, base sludge
It is discharged into sludge-tank；
Biological contact oxidization treatment sewage: entering biological contact oxidation pond through the processed sewage of level-one ABR anaerobic reaction,
Organic matter is removed using biologic packing material, carries out Ammonia Nitrification；
Secondary precipitation: mud-water separation is carried out in secondary settling tank through the processed sewage of biological contact oxidation pond, removes waste water
Middle aerobic section activated sludge protects anaerobe in subsequent anaerobic reactor to exempt from impact；The sludge of precipitating enters sludge-tank；
Second level ABR anaerobic reaction: the sewage after secondary precipitation enters back into second level ABR reaction tank, and further to pass through anaerobism micro-
The effect of biology removes organic matter, carries out denitrification, and the pollutant of macromolecular, improves the biochemical of waste water in water of degrading again
Property, it creates conditions for later waste water aerobic biochemical treatment；
MBR membrane bioreactor purifies sewage: detachable membrane bioreactor is separately put bioreactor with membrane module
It sets, the mixed liquor of membrane bioreactor enters membrane module after being pressurized, and the penetration by liquid film in mixed liquor obtains under pressure
It is discharged to system, activated sludge is then trapped, and is flowed back into MBR bioreactor with concentrate；
MBR produces water filtering: sewage water outlet after the filtering of MBR membrane bioreactor enters cartridge filter and nanofiltration device again
Outlet after secondary filtering.
Preferably, the concentrated water of the nanofiltration device enters concentrated water pond and is discharged after coagulating sedimentation into Fenton reaction tank,
The water outlet of Fenton reaction tank flows into conditioning tank and is purified again.
The beneficial effects of adopting the technical scheme are that by grid filtration sanitary sewage, passing through coagulating basin
And sedimentation basin pre-processes factory's anaerobic fermentation sewage, pretreated sewage successively passes through conditioning tank, Inner electrolysis pond, gas
Floating pond, level-one ABR reaction tank, biological contact oxidation pond, secondary settling tank, second level ABR reaction tank, MBR membrane bioreactor, security personnel
Outlet after filter and nanofiltration device filtering, comprehensive utilization physics, chemistry, bioanalysis come Treating Municipal Sewage, present invention process
Reliable efficient, structurally reasonable, adaptable, stable expense is low, cost of investment is low, easy to maintenance, reduces energy consumption, improves behaviour
Make condition, improve labor efficiency, guarantees Preliminary sewage treatment effect, to reduce the totle drilling cost of sewage treatment.
Specific embodiment
Below with reference to the embodiment embodiment that the present invention will be described in detail.
A kind of sewage water treatment method, including following processing step:
(1) sewage treating nature water:
A, sanitary sewage is through the coarse solid content of grid filtration, subsequently into conditioning tank；
B, factory's anaerobic fermentation sewage addition medicament pretreatment:
Will factory's anaerobic fermentation sewage inject coagulating basin in add NaOH adjust sewage PH value, add MgCL2 and
Na2HPO4 removes ammonia nitrogen in sewage, and dosing coagulant PAC makes small suspended material in sewage flocculate at big suspended matter, then again
Flocculant PAM is added, to reduce SS and partial organic substances matter in waste water；
Precipitating: the sewage that chemicals treatment is crossed, which is drained into sedimentation basin, to be precipitated, and the pretreated sewage in upper layer enters
It is mixed in conditioning tank, remaining sludge enters in sludge-tank；
(2) sewage quality is adjusted: above two pretreated sewage being injected into progress water quality adjustment in conditioning tank and is mixed
It closes, and preaeration stripping is carried out by aerator, reduce the pollutant load in sewage；
(3) Internal Electrolysis Process for Treating sewage: the sewage after adjusting is injected into the Inner electrolysis pond filled with Fe-C filler, is led to
It crosses HCl chemicals dosing plant and adds HCl and sewage is adjusted to slant acidity, using sewage as electrolyte solution, except COD in decontaminated water, raising can
Biochemical；
(4) gas floatation process purifies sewage: sewage is discharged into the flotation tank that air floatation machine is housed after being electrolysed, and in flotation tank
It is interior that flocculant PAM is added by PAM chemicals dosing plant, achieve the purpose that separation of solid and liquid；Flotation tank water outlet enters level-one ABR and reacts
Pond, dross enter sludge-tank；
(5) level-one ABR anaerobic reaction: flotation tank is discharged in level-one ABR reaction tank, passes through the effect of anaerobe
The pollutant of macromolecular, improves the biodegradability of sewage in degradation water, creates conditions for later waste water aerobic biochemical treatment, bottom
Sludge is discharged into sludge-tank；
(6) biological contact oxidization treatment sewage: enter biological contact oxidation through the processed sewage of level-one ABR anaerobic reaction
Change pond, biologic packing material is submerged in sewage, biomembrane is covered on biologic packing material, during sewage and biofilm contact, in water
Organic matter by Institute of Micro-biology's absorption, oxygenolysis and be converted into new biomembrane, utilize biologic packing material to remove organic matter, carry out
Ammonia Nitrification；
(7) secondary precipitation: carrying out mud-water separation through the processed sewage of biological contact oxidation pond in secondary settling tank, removal
Aerobic section activated sludge in waste water protects anaerobe in subsequent anaerobic reactor to exempt from impact, and the sludge of precipitating enters dirt
Mud sump；
(8) second level ABR anaerobic reaction: the sewage after secondary precipitation, which enters back into second level ABR reaction tank and further passes through, to be detested
The effect of oxygen animalcule removes organic matter, carries out denitrification, and the pollutant of macromolecular, improves giving birth to for waste water in water of degrading again
The property changed creates conditions for later waste water aerobic biochemical treatment；
(9) MBR membrane bioreactor purifies sewage: detachable membrane bioreactor is bioreactor and membrane module point
Opening is set, and the mixed liquor of membrane bioreactor enters membrane module after being pressurized, under pressure the penetration by liquid in mixed liquor
Film obtains system water outlet, and activated sludge is then trapped, and is flowed back into MBR bioreactor with concentrate；Using being immersed in
Activated sludge and solids in membrane separation plant entrapping tank in oxygen biological tank after biological treatment；Membrane bioreactor has because of it
The crown_interception of effect can retain generation cycle longer microorganism, it can be achieved that Simultaneous Nitrification bacterium is in system to deep purification of waste water
Interior sufficiently to breed, nitrification effect is obvious, and providing deep phosphorous removal denitrogenation may；
(10) MBR produces water filtering: water outlet enters cartridge filter to sewage after the filtering of MBR membrane bioreactor and nanofiltration fills
Enter nanofiltration production pond, last standard discharge after setting filtering again, nanofiltration device concentrated water is discharged entrance after coagulating sedimentation
Fenton reaction tank, can the efficient oxidation remove organic matter, its essence is H2O2 is generated under the catalytic action of Fe2+ have it is high instead
Answer active hydroxyl radical free radical (OH), OH can be acted on most of organic matters makes its degradation), Fenton reaction tank goes out water flow
Enter conditioning tank to be purified again.
Wherein, sewage per ton consumption NaOH0.05Kg, PAC0.2Kg, PAM0.012Kg, HCl0.04Kg,
MgCl25.2Kg, Na2HPO43Kg, Fe-C filler 0.01Kg, antisludging agent 0.001Kg.
Sewage by above-mentioned preliminary treatment further enters postorder sewage disposal device and carries out advanced treating, can be big
The totle drilling cost of width reduction sewage treatment.
The beneficial effects of adopting the technical scheme are that by grid filtration sanitary sewage, passing through coagulating basin
And sedimentation basin pre-processes factory's anaerobic fermentation sewage, pretreated sewage successively passes through conditioning tank, Inner electrolysis pond, gas
Floating pond, level-one ABR reaction tank, biological contact oxidation pond, secondary settling tank, second level ABR reaction tank, MBR membrane bioreactor, security personnel
Outlet after filter and nanofiltration device filtering, comprehensive utilization physics, chemistry, bioanalysis come Treating Municipal Sewage, present invention process
Reliable efficient, structurally reasonable, adaptable, stable expense is low, cost of investment is low, easy to maintenance, reduces energy consumption, improves behaviour
Make condition, improve labor efficiency, guarantees Preliminary sewage treatment effect, to reduce the totle drilling cost of sewage treatment.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of sewage water treatment method, which is characterized in that including following processing step:
Sewage treating nature water:
Sanitary sewage is through the coarse solid content of grid filtration, subsequently into conditioning tank；
Factory's anaerobic fermentation sewage adds medicament pretreatment:
Factory's anaerobic fermentation sewage is injected in coagulating basin and adds NaOH adjusting sewage PH value, adds MgCL2 and Na2HPO4 removal
Ammonia nitrogen in sewage, dosing coagulant PAC make small suspended material flocculation in sewage then add flocculant again at big suspended matter
PAM, to reduce SS and partial organic substances matter in waste water；
Precipitating: the sewage that chemicals treatment is crossed, which is drained into sedimentation basin, to be precipitated, and the pretreated sewage in upper layer enters adjusting
It is mixed in pond, remaining sludge enters in sludge-tank；
Sewage quality is adjusted: above two pretreated sewage being injected into progress water quality adjustment mixing in conditioning tank, and is led to
It crosses aerator and carries out preaeration stripping, reduce the pollutant load in sewage；
Internal Electrolysis Process for Treating sewage: the sewage after adjusting is injected into the Inner electrolysis pond filled with Fe-C filler, HCl dosing is passed through
Device adds HCl and sewage is adjusted to slant acidity, using sewage as electrolyte solution, except COD in decontaminated water, improves biodegradability；
Gas floatation process purifies sewage: sewage is discharged into the flotation tank equipped with air floatation machine after being electrolysed, and passes through PAM in flotation tank
Flocculant PAM is added in chemicals dosing plant, achievees the purpose that separation of solid and liquid；Flotation tank water outlet enters level-one ABR reaction tank, and dross enters
Sludge-tank；
Level-one ABR anaerobic reaction: flotation tank is discharged in level-one ABR reaction tank, by the effect degradation water of anaerobe
The pollutant of macromolecular improves the biodegradability of sewage, creates conditions for later waste water aerobic biochemical treatment, base sludge is discharged into
Sludge-tank；
Biological contact oxidization treatment sewage: entering biological contact oxidation pond through the processed sewage of level-one ABR anaerobic reaction, utilizes
Biologic packing material removes organic matter, carries out Ammonia Nitrification；
Secondary precipitation: carrying out mud-water separation through the processed sewage of biological contact oxidation pond in secondary settling tank, and it is good in waste water to remove
Oxygen section activated sludge protects anaerobe in subsequent anaerobic reactor to exempt from impact；The sludge of precipitating enters sludge-tank；
Second level ABR anaerobic reaction: the sewage after secondary precipitation enters back into second level ABR reaction tank and further passes through anaerobe
Effect remove organic matter, carry out denitrification, again degrade water in macromolecular pollutant, improve the biodegradability of waste water, be
Later waste water aerobic biochemical treatment creates conditions；
MBR membrane bioreactor purifies sewage: detachable membrane bioreactor is separated with membrane module bioreactor, film
The mixed liquor of bioreactor enters membrane module after being pressurized, and the penetration by liquid film in mixed liquor obtains system under pressure
Water outlet, activated sludge is then trapped, and is flowed back into MBR bioreactor with concentrate；
MBR produces water filtering: sewage water outlet after the filtering of MBR membrane bioreactor enters cartridge filter and nanofiltration device mistake again
Outlet after filter.
2. sewage water treatment method according to claim 1, it is characterised in that: the concentrated water of the nanofiltration device enters concentrated water pond
Water outlet enters Fenton reaction tank after coagulating sedimentation, and the water outlet of Fenton reaction tank flows into conditioning tank and purified again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559451.3A CN109502911A (en) | 2018-12-20 | 2018-12-20 | A kind of sewage water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559451.3A CN109502911A (en) | 2018-12-20 | 2018-12-20 | A kind of sewage water treatment method |
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| Publication Number | Publication Date |
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| CN109502911A true CN109502911A (en) | 2019-03-22 |
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| CN201811559451.3A Pending CN109502911A (en) | 2018-12-20 | 2018-12-20 | A kind of sewage water treatment method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395856A (en) * | 2019-09-04 | 2019-11-01 | 河北逾净环保科技有限公司 | A kind of processing method of electrophoretic-coating wastewater |
| CN112408713A (en) * | 2020-11-27 | 2021-02-26 | 湖南中拓环境工程有限公司 | Method and system for recycling and treating electrophoresis wastewater |
| CN114275968A (en) * | 2021-12-16 | 2022-04-05 | 江苏宿迁润泰环保科技有限公司 | Wastewater treatment system and wastewater treatment process |
-
2018
- 2018-12-20 CN CN201811559451.3A patent/CN109502911A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395856A (en) * | 2019-09-04 | 2019-11-01 | 河北逾净环保科技有限公司 | A kind of processing method of electrophoretic-coating wastewater |
| CN112408713A (en) * | 2020-11-27 | 2021-02-26 | 湖南中拓环境工程有限公司 | Method and system for recycling and treating electrophoresis wastewater |
| CN114275968A (en) * | 2021-12-16 | 2022-04-05 | 江苏宿迁润泰环保科技有限公司 | Wastewater treatment system and wastewater treatment process |
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