CN108439741A - A kind of online decrement process of sewage plant excess sludge - Google Patents
A kind of online decrement process of sewage plant excess sludge Download PDFInfo
- Publication number
- CN108439741A CN108439741A CN201810449896.XA CN201810449896A CN108439741A CN 108439741 A CN108439741 A CN 108439741A CN 201810449896 A CN201810449896 A CN 201810449896A CN 108439741 A CN108439741 A CN 108439741A
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- China
- Prior art keywords
- sludge
- sewage
- online
- sewage plant
- excess sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 73
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000011282 treatment Methods 0.000 claims abstract description 14
- 230000007062 hydrolysis Effects 0.000 claims abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 12
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 5
- 230000029087 digestion Effects 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 210000000805 cytoplasm Anatomy 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 244000005706 microflora Species 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 2
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F11/00—Treatment of sludge; Devices therefor
-
- 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
- C02F2303/06—Sludge reduction, e.g. by lysis
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)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of online decrement process of sewage plant excess sludge, the especially online deweighting treating technology of municipal sewage and industrial sewage processing unit residual active sludge, the technique from sludge concentration tank mainly by shunting a part of sludge to supersonic wave wall breaking device, hydrolytic decomposition pot carries out broken wall hydrolysis, and the sludge after broken wall hydrolysis carries out biochemical treatment back to sewage device biochemical system.The technique can be in the case where not influencing raw sewage device normal operation, it can be achieved that the online decrement of 30 50% sludge, and small investment, and quick, easy to operate, processing cost is cheap, is with a wide range of applications.
Description
Technical field
The present invention relates to a kind of online decrement process of sewage plant excess sludge, especially municipal sewage and Industrial Waste Water Treatments
The online deweighting treating technology of device residual active sludge.
Background technology
The processing of China city and industrial wastewater mostly uses greatly activated sludge process at this stage, and activated sludge process is in operational process
In will produce a large amount of excess sludge.Country's sewage plant mostly uses two level digestion+press filtration de- the processing of excess sludge at present
Water process.Anaerobic sludge digestion is the most common method for organic sludge stablize processing, can handle content of organics
Higher sludge.Organic matter generates the biogas of a large amount of high heating value as energy profit by anaerobic digestion with the stabilisation of sludge
With making recycling sludge.But the anaerobic digestion investment of sludge is huge, and operational management is more demanding, and reduction rate only has 30%
Left and right, this just constrains the universal of anaerobic sludge digestion.
Invention content
The present invention, which proposes a kind of sewage plant excess sludge, can realize the treatment process being reduced online, which can realize
The mud decrement of 30-50%, and small investment, quick, easy to operate, processing cost is cheap.
In order to achieve the above objectives, the method applied in the present invention is：
A kind of online decrement process of sewage plant excess sludge, it is characterised in that include the following steps：
Step 1：City or trade effluent are sequentially sent to regulating reservoir, anoxic pond, aeration tank, secondary sedimentation tank i.e. two to sink
Pond, the processing of discharge pond, the excess sludge wherein in secondary sedimentation tank are sent into sludge concentration tank, sewage plant sludge concentration basin are concentrated
The good biological sludge shunting 30-50% for preparing to be sent to sludge dewatering treatment, until ultrasonic sludge broken wall device carries out broken wall treatment,
The excess sludge of 50%-70% carries out Anaerobic Digestion；
Step 2：Sludge lifting to sludge hydrolytic tank after ultrasonic sludge broken wall device broken wall is hydrolyzed；
Step 3：Sludge after hydrolysis is returned in anoxic pond, the basic dead hydrolysis of the sludge microbe after hydrolysis,
And substance in cytoplasm is released, it is converted into the organic matter that can be degraded by microorganisms, the microflora organisms converted in this way are by former dirty
Water treatment facilities biochemical degradation, sludge are able to decrement 30-50%.
The excess sludge of Anaerobic Digestion eventually enters into sludge dewatering treatment system in the present invention.
Secondary sedimentation tank is equipped with the mud return line being connected with aeration tank in the present invention.
Pond is discharged in the present invention with external sewage discharge pipe network to connect.
Compared with prior art, the present invention can be in the case where not influencing raw sewage device normal operation, it can be achieved that the dirt of 30-50%
The online decrement of mud, and small investment, quick, easy to operate, processing cost is cheap, is with a wide range of applications.
Description of the drawings：
Attached drawing 1 is the process flow chart of the present invention.
Attached drawing 2 is traditional wastewater process chart.
Specific implementation mode：
Below in conjunction with the accompanying drawings, the present invention is further illustrated.
The present invention proposes a kind of online decrement process of sewage plant excess sludge, as shown in Fig. 2, general municipal sewage treatment
The typical process of the sewage disposal of device is：
In technical solution proposed by the invention, excess sludge after sludge condensation, anaerobic digestion by carrying out at dehydration
Reason, dehydrated sludge generally transport outward landfill disposal, some also carry out drying and other treatments.A kind of online decrement process proposed by the present invention
By sludge concentration tank concentrate it is good prepare be sent to sludge dewatering biological sludge shunt 30-50%, until ultrasonic sludge broken wall device into
Row broken wall treatment, the sludge lifting after broken wall is to sludge hydrolytic tank hydrolysis process, the basic dead of sludge microbe after hydrolysis
Hydrolysis, and substance in cytoplasm is released, it is converted into the organic matter that can be degraded by microorganisms, the sludge after hydrolysis is returned into dirt
Water installations continue biochemical treatment, and the microflora organisms converted in this way are reduced by raw sewage processing unit biochemical degradation, sludge
30-50%.
The technique cocoa calculates the sludge quantity of broken wall shunting according to the processing capacity of sewage device, is meeting sewage device just
Often under operation, hydrolyzing sludge amount of the adjustment back to sewage-treatment plant；Newly-built sewage device can subtract sewage in the design phase
Amount total amount is added in influent COD/BOD total amounts, and 70% or more mud decrement may be implemented in this way.
The technique can in the case where not influencing raw sewage device normal operation, it can be achieved that the online decrement of the sludge of 30-50%, and
And small investment, quick, easy to operate, processing cost is cheap, is with a wide range of applications.
Claims (4)
1. a kind of online decrement process of sewage plant excess sludge, it is characterised in that include the following steps：
Step 1：City or trade effluent are sequentially sent to regulating reservoir, anoxic pond, aeration tank, secondary sedimentation tank i.e. secondary settling tank, row
Pond processing is put, the excess sludge wherein in secondary sedimentation tank is sent into sludge concentration tank, and sewage plant sludge concentration basin has been concentrated standard
The standby biological sludge shunting 30-50% for being sent to sludge dewatering treatment, until ultrasonic sludge broken wall device carries out broken wall treatment, 50%-
70% excess sludge carries out Anaerobic Digestion；
Step 2：Sludge lifting to sludge hydrolytic tank after ultrasonic sludge broken wall device broken wall is hydrolyzed；
Step 3：Sludge after hydrolysis is returned in anoxic pond, the basic dead hydrolysis of the sludge microbe after hydrolysis, and released
Substance in cytoplasm is released, is converted into the organic matter that can be degraded by microorganisms, the microflora organisms converted in this way are by raw sewage
Device biochemical degradation is managed, sludge is able to decrement 30-50%.
2. the online decrement process of a kind of sewage plant excess sludge according to claim 1, it is characterised in that at anaerobic digestion
The excess sludge of reason eventually enters into sludge dewatering treatment system.
3. the online decrement process of a kind of sewage plant excess sludge according to claim 1, it is characterised in that secondary sedimentation tank
Equipped with the mud return line being connected with aeration tank.
4. the online decrement process of a kind of sewage plant excess sludge according to claim 1, it is characterised in that discharge pond with it is outer
Portion's sewage discharge pipe network connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449896.XA CN108439741A (en) | 2018-05-11 | 2018-05-11 | A kind of online decrement process of sewage plant excess sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449896.XA CN108439741A (en) | 2018-05-11 | 2018-05-11 | A kind of online decrement process of sewage plant excess sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108439741A true CN108439741A (en) | 2018-08-24 |
Family
ID=63202958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810449896.XA Pending CN108439741A (en) | 2018-05-11 | 2018-05-11 | A kind of online decrement process of sewage plant excess sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108439741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248094A (en) * | 2021-05-19 | 2021-08-13 | 南京溧水秦源污水处理有限公司 | Method for reducing excess sludge yield and carbon source adding amount of sewage plant |
| CN117125873A (en) * | 2023-09-01 | 2023-11-28 | 上海城投污水处理有限公司 | Sludge anaerobic digestion process based on sludge wall breaking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100778155B1 (en) * | 2007-01-31 | 2007-11-28 | 주식회사 타 셋 | Anaerobic Digestion Treatment Equipment by Hydrolysis of Sewage Sludge and Ultrasonic Combined Concentration |
| CN101182092A (en) * | 2007-11-07 | 2008-05-21 | 天津大学 | Biological Sludge Reduction Method |
| CN102515448A (en) * | 2011-12-26 | 2012-06-27 | 天津大学 | Process for promoting biological denitrification by performing ultrasonic disintegration on residual sludge to reflow and replenish denitrification carbon source |
| WO2012123632A1 (en) * | 2011-03-11 | 2012-09-20 | Dewaco Ltd. | A method and an arrangement for wastewater sludge treatment in a wastewater sludge handling process |
| CN103508617A (en) * | 2012-06-27 | 2014-01-15 | 中国石油化工股份有限公司 | Method for reducing petrochemical biological sludge and treatment device for petrochemical biological sludge |
-
2018
- 2018-05-11 CN CN201810449896.XA patent/CN108439741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100778155B1 (en) * | 2007-01-31 | 2007-11-28 | 주식회사 타 셋 | Anaerobic Digestion Treatment Equipment by Hydrolysis of Sewage Sludge and Ultrasonic Combined Concentration |
| CN101182092A (en) * | 2007-11-07 | 2008-05-21 | 天津大学 | Biological Sludge Reduction Method |
| WO2012123632A1 (en) * | 2011-03-11 | 2012-09-20 | Dewaco Ltd. | A method and an arrangement for wastewater sludge treatment in a wastewater sludge handling process |
| CN102515448A (en) * | 2011-12-26 | 2012-06-27 | 天津大学 | Process for promoting biological denitrification by performing ultrasonic disintegration on residual sludge to reflow and replenish denitrification carbon source |
| CN103508617A (en) * | 2012-06-27 | 2014-01-15 | 中国石油化工股份有限公司 | Method for reducing petrochemical biological sludge and treatment device for petrochemical biological sludge |
Non-Patent Citations (1)
| Title |
|---|
| 李荣吉: ""工业园区污水处理厂实例"", 《科技风》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248094A (en) * | 2021-05-19 | 2021-08-13 | 南京溧水秦源污水处理有限公司 | Method for reducing excess sludge yield and carbon source adding amount of sewage plant |
| CN117125873A (en) * | 2023-09-01 | 2023-11-28 | 上海城投污水处理有限公司 | Sludge anaerobic digestion process based on sludge wall breaking |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180824 |