CN105399285A - Sewage treatment method for sludge reduction - Google Patents
Sewage treatment method for sludge reduction Download PDFInfo
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- CN105399285A CN105399285A CN201510979460.8A CN201510979460A CN105399285A CN 105399285 A CN105399285 A CN 105399285A CN 201510979460 A CN201510979460 A CN 201510979460A CN 105399285 A CN105399285 A CN 105399285A
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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
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/341—Consortia of bacteria
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- 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
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- 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
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Abstract
The invention relates to a sewage treatment method and discloses a sewage treatment method for sludge reduction. The sewage treatment method comprises an anaerobic reaction stage and an aerobic reaction stage. Sludge produced during the two stages flows back to regulation equipment prior to the reactions. Specific surface area of a filling material used in the aerobic reaction stage and the anaerobic reaction stage is greater than or equal to 20 m<2>/g, and porosity is greater than or equal to 90%. Strains in sludge contain Acinetobacter, Lampropedia, Janthinobacterium sp, bifidum, lactic acid bacteria, bacillus, acetic bacteria, actinomyces, microzyme and fusobacterium. BOD and COD are removed by mixed strains digestion. Less sludge is generated; demoulding is fast; no flocculating agent needs to be added; operating cost is low; sludge output of the technology is only 10% of sludge output of a common treatment technology; sludge treatment cost is reduced; and secondary pollution of sludge is avoided.
Description
Technical field
The present invention relates to sewage water treatment method, particularly relate to a kind of sludge reduction sewage water treatment method.
Background technology
Along with China's urbanization and Industrial Waste Water Treatments ability greatly improve, the surplus sludge volume produced in corresponding sewage treatment process is also increasingly huge, and every year with 10% ~ 15% speed increase, sludge pollution is on the rise, and sludge handling problem highlights.The current mud of China is mainly with the formal layout such as compost, landfill, in tangleweed, if the excess sludge produced in lignin-sludge process is not disposed, wherein the contained pollutent such as pathogenic micro-organism, heavy metal will be transferred in surrounding environment and cause secondary pollution.
People pay close attention to the process of sludge treatment and mainly concentrate on end treatment, are seldom studied the process that mud occurs.At present both at home and abroad the Sludge Reduction Technologies of research mainly contains ozonation technology, ultrasonic disruption cell technology, uncoupling technology, soda acid dissolving technology, but all there is the high or technical bottleneck of cost, does not form certain market application.The sludge output that current sludge treatment factory is huge and the incomplete contradiction of sludge disposal technology highlight, if do not control the generation of mud, make mud from decrement source, and only adopt end treatment, then no matter adopt which kind of sludge treatment or disposal technology, all difficulty resolves sludge problem.
Summary of the invention
The present invention is directed to sludge yield in existing sewage disposal technology huge, sludge treatment difficulty, the shortcoming that cost is high, provides the sludge reduction sewage water treatment method of decrement a kind of source from producing from mud.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of sludge reduction sewage water treatment method, comprises the steps:
Step (1): the sewage in equalizing tank enters the anaerobic reaction stage successively, enters settling tank after reaction, the sewage of precipitate and separate enters the aerobic reaction stage, and sludge reflux is to equalizing tank;
Step (2): sewage after the aerobic reaction stage, filtering-depositing, the sludge reflux of precipitate and separate is to equalizing tank, and water conditioning reaches national secondary discharge standard;
Wherein, packing specific area>=20m of using of aerobic reaction stage and anaerobic reaction stage
2/ g, porosity of=90%, in mud, bacterial classification comprises acinetobacter, Lampropedia, chromobacterium belong to, two bacterium, milk-acid bacteria, bacillus, acetic bacteria, actinomycetes, yeast, fusobacterium.
Sewage disposal adopts mixed bacterium process, by the organism in the different metabolic path digestion sewage of different microorganisms, can reduce the organic content of sewage; Containing fusobacterium microorganism in mixed bacterium, can digested sludge, play the object of sludge reduction.
As preferably, in step (1), the anaerobic reaction stage comprises successively through first step anaerobic reaction stage and second stage anaerobic reaction stage.In the first step anaerobic reaction stage, facultative and anaerobion raised growth, in the second stage anaerobic reaction stage, anerobe consumes the organism in sewage in a large number, reduces the COD value of sewage.
As preferably, in step (2), the aerobic reaction stage comprises successively through first step aerobic reaction stage and second stage aerobic reaction stage.In the first step aerobic reaction stage, facultative and aerobic microbiological raised growth, in the second aerobic step of reaction, aerobic bacteria consumes the organism in sewage in a large number, reduces the COD value of sewage.
As preferably, in step (2), filter and adopt biochemistry filtered, filtration medium is the accumulation horizon that sandstone is formed.Sandstone or gravel are piled up and are formed accumulation horizon as filtration medium, and effectively can tackle the bacterium mud in sewage, good filtration effect, efficiency is high, have the advantages such as slag dumping convenience simultaneously.
As preferably, in mud, fusobacterium viable count accounts for 50% of all number of viable or more.Fusobacterium obligate anaerobic, several are chemoheterotrophic bacteria mostly; Some chemoautotrophic bacterias or chemolithotrophy.Can hydrolysis sugar, protein, or both without or both.They produce organic acid and the alcohols of mixing usually from sugar or peptone.
Mud of the present invention comprises fusobacterium, can digested sludge in a large number at aerobic stage, reaches the demand of sludge reduction discharge, decreases Sludge in Sewage Treatment cost of disposal, reduces artificial and running cost greatly.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
A kind of sludge reduction sewage water treatment method, comprises the steps:
Step (1): the sewage in equalizing tank enters the anaerobic reaction stage successively, enters settling tank after reaction, the sewage of precipitate and separate enters the aerobic reaction stage, and sludge reflux is to equalizing tank;
Step (2): sewage after the aerobic reaction stage, filtering-depositing, the sludge reflux of precipitate and separate is to equalizing tank, and water conditioning reaches national grade one discharge standard;
Wherein, packing specific area>=20m of using of aerobic reaction stage and anaerobic reaction stage
2/ g, porosity of=90%, in mud, bacterial classification comprises acinetobacter, Lampropedia, chromobacterium belong to, two bacterium, milk-acid bacteria, bacillus, acetic bacteria, actinomycetes, yeast, fusobacterium, sludge reflux amount>=80% after anaerobic reaction.
Concrete technology flow process:
(1) pending influent waste water COD concentration is 1000-2000mg/l;
(2) waste water flow into automatic grid maker by pipeline, after filtering out the larger solid substance of volume, enters equalizing tank, mixes with the mud of backflow;
(3) be pumped into first step anaerobic reation pool, anaerobic digestion with the mixed sewage of returned sluge, hydraulic detention time is 24 hours;
(4) continue to pump into second stage anaerobic reation pool, hydraulic detention time is 24 hours;
(5) after anaerobic digestion, sewage is pumped into settling tank, and after precipitation, waste water is pumped into the aerobic reaction stage, the mud of 80% amount by pipe to being back to equalizing tank;
(6) excess sludge is pumped into first step aerobic reaction pond with sewage, aerobic reaction, and hydraulic detention time is 12 hours;
(7) continue to pump into aerobic reaction pond, the second stage, hydraulic detention time is 6 hours;
(8) after aerobic reaction, sewage is pumped into biochemical filter tank, and wherein, filtration medium is the accumulation horizon that sandstone is formed, and hydraulic detention time is 4 hours;
(9) continue to be pumped into settling tank, precipitating sludge total reflux is to equalizing tank, and the water after process emits;
(10) the water COD value of discharging is 50-100mg/l.
Embodiment 2
A kind of sludge reduction sewage water treatment method, comprises the steps:
Step (1): the sewage in equalizing tank enters the anaerobic reaction stage successively, enters settling tank after reaction, the sewage of precipitate and separate enters the aerobic reaction stage, and sludge reflux is to equalizing tank;
Step (2): sewage after the aerobic reaction stage, filtering-depositing, the sludge reflux of precipitate and separate is to equalizing tank, and water conditioning reaches national grade one discharge standard;
Wherein, packing specific area>=20m of using of aerobic reaction stage and anaerobic reaction stage
2/ g, porosity of=90%, in mud, bacterial classification comprises acinetobacter, Lampropedia, chromobacterium belong to, two bacterium, milk-acid bacteria, bacillus, acetic bacteria, actinomycetes, yeast, fusobacterium, sludge reflux amount>=80% after anaerobic reaction.
Concrete technology flow process:
(1) pending influent waste water COD concentration is 1000-2000mg/l;
(2) waste water flow into automatic grid maker by pipeline, after filtering out the larger solid substance of volume, enters equalizing tank, mixes with the mud of backflow;
(3) be pumped into first step anaerobic reation pool, anaerobic digestion with the mixed sewage of returned sluge, hydraulic detention time is 24 hours;
(4) continue to pump into second stage anaerobic reation pool, hydraulic detention time is 12 hours;
(5) after anaerobic digestion, sewage is pumped into settling tank, and after precipitation, waste water is pumped into the aerobic reaction stage, the mud of 80% amount by pipe to being back to equalizing tank;
(6) excess sludge is pumped into first step aerobic reaction pond with sewage, aerobic reaction, and hydraulic detention time is 6 hours;
(7) continue to pump into aerobic reaction pond, the second stage, hydraulic detention time is 12 hours;
(8) after aerobic reaction, sewage is pumped into biochemical filter tank, and wherein, filtration medium is the accumulation horizon that sandstone is formed, and hydraulic detention time is 4 hours;
(9) continue to be pumped into settling tank, precipitating sludge total reflux is to equalizing tank, and the water after process emits;
(10) the water COD value of discharging is 50-100mg/l.
Embodiment 3
A kind of sludge reduction sewage water treatment method, comprises the steps:
Step (1): the sewage in equalizing tank enters the anaerobic reaction stage successively, enters settling tank after reaction, the sewage of precipitate and separate enters the aerobic reaction stage, and sludge reflux is to equalizing tank;
Step (2): sewage after the aerobic reaction stage, filtering-depositing, the sludge reflux of precipitate and separate is to equalizing tank, and water conditioning reaches national grade one discharge standard;
Wherein, packing specific area>=20m of using of aerobic reaction stage and anaerobic reaction stage
2/ g, porosity of=90%, in mud, bacterial classification comprises acinetobacter, Lampropedia, chromobacterium belong to, two bacterium, milk-acid bacteria, bacillus, acetic bacteria, actinomycetes, yeast, fusobacterium, sludge reflux amount>=80% after anaerobic reaction.
Concrete technology flow process:
(1) pending influent waste water COD concentration is 1000-2000mg/l;
(2) waste water flow into automatic grid maker by pipeline, after filtering out the larger solid substance of volume, enters equalizing tank, mixes with the mud of backflow;
(3) be pumped into first step anaerobic reation pool, anaerobic digestion with the mixed sewage of returned sluge, hydraulic detention time is 24 hours;
(4) continue to pump into second stage anaerobic reation pool, hydraulic detention time is 18 hours;
(5) after anaerobic digestion, sewage is pumped into settling tank, and after precipitation, waste water is pumped into the aerobic reaction stage, the mud of 80% amount by pipe to being back to equalizing tank;
(6) excess sludge is pumped into first step aerobic reaction pond with sewage, aerobic reaction, and hydraulic detention time is 9 hours;
(7) continue to pump into aerobic reaction pond, the second stage, hydraulic detention time is 9 hours;
(8) after aerobic reaction, sewage is pumped into biochemical filter tank, and wherein, filtration medium is the accumulation horizon that sandstone is formed, and hydraulic detention time is 4 hours;
(9) continue to be pumped into settling tank, precipitating sludge total reflux is to equalizing tank, and the water after process emits;
(10) the water COD value of discharging is 50-100mg/l.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (5)
1. a sludge reduction sewage water treatment method, is characterized in that, comprises the steps:
Step (1): the sewage in equalizing tank enters the anaerobic reaction stage successively, enters settling tank after reaction, the sewage of precipitate and separate enters the aerobic reaction stage, and sludge reflux is to equalizing tank;
Step (2): sewage after the aerobic reaction stage, filtering-depositing, the sludge reflux of precipitate and separate is to equalizing tank, and water conditioning reaches national grade one discharge standard;
Wherein, packing specific area>=20m of using of aerobic reaction stage and anaerobic reaction stage
2/ g, porosity of=90%, in mud, bacterial classification comprises acinetobacter, Lampropedia, chromobacterium belong to, two bacterium, milk-acid bacteria, bacillus, acetic bacteria, actinomycetes, yeast, fusobacterium.
2. a kind of sludge reduction sewage water treatment method according to claim 1, is characterized in that: in step (1), the anaerobic reaction stage comprises successively through first step anaerobic reaction stage and second stage anaerobic reaction stage.
3. a kind of sludge reduction sewage water treatment method according to claim 1, is characterized in that: in step (2), the aerobic reaction stage comprises successively through first step aerobic reaction stage and second stage aerobic reaction stage.
4. a kind of sludge reduction sewage water treatment method according to claim 1, is characterized in that: in step (2), and filtration adopts biochemistry filtered, and filtration medium is the accumulation horizon that sandstone is formed.
5. a kind of sludge reduction sewage water treatment method according to claim 1, is characterized in that: in mud, fusobacterium viable count accounts for 50% of all number of viable or more.
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| CN201510979460.8A CN105399285B (en) | 2015-12-22 | 2015-12-22 | A kind of sludge reduction sewage water treatment method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101311A (en) * | 2017-12-29 | 2018-06-01 | 天津德清科技有限公司 | A kind of energy-saving sewage disposal system |
| CN108529746A (en) * | 2018-03-21 | 2018-09-14 | 碧沃丰工程有限公司 | A kind of method of ammonia nitrogen and total nitrogen in removal dyeing waste water |
| CN108585224A (en) * | 2018-05-21 | 2018-09-28 | 山东省农业科学院农业资源与环境研究所 | A method of using complex micro organism fungicide treated sewage and being reduced sludge generation |
| CN110510759A (en) * | 2019-09-16 | 2019-11-29 | 德蓝水技术股份有限公司 | A kind of water process hydrolysis acidification composite bacteria agent and preparation method thereof |
| CN111847773A (en) * | 2020-07-10 | 2020-10-30 | 珠海九通水务股份有限公司 | Sewage treatment process based on multifunctional pool |
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| JP2008114215A (en) * | 2006-10-12 | 2008-05-22 | Matsushita Electric Ind Co Ltd | Method and apparatus for treating sludge |
| CN101698556A (en) * | 2009-11-05 | 2010-04-28 | 北京美绿环境工程有限责任公司 | Treatment method and treatment device of wastewater from middle stage of wheat straw pulp paper-making |
| CN102586111A (en) * | 2012-02-28 | 2012-07-18 | 宗绪成 | Microorganism bacterium agent for subtracting organic sludge, production method of microorganism bacterium agent and complex culture medium |
| CN102874989A (en) * | 2012-10-25 | 2013-01-16 | 宁夏宝塔石化集团有限公司 | Anaerobic and aerobic wastewater treatment method and equipment for recycling high-concentration active sludge |
| CN103896469A (en) * | 2014-04-17 | 2014-07-02 | 西藏国策环保科技股份有限公司 | Preparation method of organic sludge degradation and reduction agent |
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2015
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Patent Citations (5)
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| JP2008114215A (en) * | 2006-10-12 | 2008-05-22 | Matsushita Electric Ind Co Ltd | Method and apparatus for treating sludge |
| CN101698556A (en) * | 2009-11-05 | 2010-04-28 | 北京美绿环境工程有限责任公司 | Treatment method and treatment device of wastewater from middle stage of wheat straw pulp paper-making |
| CN102586111A (en) * | 2012-02-28 | 2012-07-18 | 宗绪成 | Microorganism bacterium agent for subtracting organic sludge, production method of microorganism bacterium agent and complex culture medium |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101311A (en) * | 2017-12-29 | 2018-06-01 | 天津德清科技有限公司 | A kind of energy-saving sewage disposal system |
| CN108529746A (en) * | 2018-03-21 | 2018-09-14 | 碧沃丰工程有限公司 | A kind of method of ammonia nitrogen and total nitrogen in removal dyeing waste water |
| CN108585224A (en) * | 2018-05-21 | 2018-09-28 | 山东省农业科学院农业资源与环境研究所 | A method of using complex micro organism fungicide treated sewage and being reduced sludge generation |
| CN110510759A (en) * | 2019-09-16 | 2019-11-29 | 德蓝水技术股份有限公司 | A kind of water process hydrolysis acidification composite bacteria agent and preparation method thereof |
| CN111847773A (en) * | 2020-07-10 | 2020-10-30 | 珠海九通水务股份有限公司 | Sewage treatment process based on multifunctional pool |
| CN111847773B (en) * | 2020-07-10 | 2022-07-19 | 珠海九通水务股份有限公司 | Sewage treatment process based on multifunctional pool |
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| CN105399285B (en) | 2018-07-10 |
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