CN103304036A - Method for reducing sludge in sewage treatment - Google Patents
Method for reducing sludge in sewage treatment Download PDFInfo
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- CN103304036A CN103304036A CN2012100676833A CN201210067683A CN103304036A CN 103304036 A CN103304036 A CN 103304036A CN 2012100676833 A CN2012100676833 A CN 2012100676833A CN 201210067683 A CN201210067683 A CN 201210067683A CN 103304036 A CN103304036 A CN 103304036A
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- sludge
- sewage treatment
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- biocarrier
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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
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- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention provides a method for reducing sludge in sewage treatment, and the method is capable of greatly reducing the sludge quantity. The method comprises the following steps of: filling a biocarrier enriched with a plurality of trace elements for the growth of microbe in a sewage treatment main process, the DO changeable environment can be formed through the unique form of the biocarrier, the sludge retention time (SRT) is long, the variety is abundant, the food cycle is long, and the newly produced sludge is gradually re-degraded by a plurality of microbes to achieve the aim of reducing the sludge quantity. According to the method for reducing sludge in sewage treatment, the mud yield of the sewage treatment process is reduced to 0.1-0.15% from the 0.8-1% of the sewage quantity without adding an uncoupling agent and producing the secondary pollution; the microbe types and number can be conveniently controlled with obvious effect, and the application range is wide; the organic wastewater of municipal administration, garden, industry and life can be treated, the operation is stable, the water force and water quality change can be born, and the adjusting working quantity is small.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, especially a kind of method of Sludge in Sewage Treatment decrement.
Background technology
Activated sludge process is adopted in the processing of China's trade effluent mostly, and it has advantages of, and initial cost is economized, treatment effect is good, but there is the drawback of a maximum in it always, and that is exactly can produce a large amount of excess sludges in operational process.
At present, excess sludge commonly used is processed with method of disposal agricultural use, landfill, burning and input ocean etc., but all there is drawback bar none in these methods of disposal.
Secondly, the fund that various sludge treatment and method of disposal need is huge, at present in the world the application of the sewage work 80% or more be Wastewater Treated by Activated Sludge Process sewage, as the America and Europe, the sludge treatment capital cost accounts for ratio that sewage work's total capital investment cost uses up to 60-70%.
Along with promulgation and the enforcement of some new ENVIRONMENTAL LAW, the depth ﹠ wideth that sewage disposal is required all significantly increases, and will inevitably cause the output of excess sludge increasing, and the processing of mud and disposal will become a great problem of environmental area.
In traditional activated sludge process, every degraded 1kgBOD
5(biochemical Oxygen Demand, five-day BOD) meeting produces the excess sludge of about 15-100L, for the treatment of or the expense for the treatment of excess sludge account for the 25%-65% of sewage disposal total expenses, European countries every year for the treatment of the expense of excess sludge just up to 2,800,000,000 Renminbi.Obviously, any measure that is conducive to reduce excess sludge all will bring huge economic benefit.
The technology that is used at present sludge reduction mainly contains three classes.One class is based on the Sludge Reduction Technologies of cytolysis (or decomposition)-recessive growth, this just need to utilize various molten born of the same parents' technology, make the rapid death of bacterium and be decomposed into matrix and again utilized by other bacteriums, thereby the cell residue thing is reduced, promote cytolysis.
Equations of The Second Kind is the quantity of bacterium predator in the increase system, is the sludge reduction technology that the food chain principle in the imitated natural ecosystem is carried out.
The 3rd class is to adopt chemistry or biological method to promote the uncoupling metabolism, causes energy leakage, thereby makes the biological growth decrease in efficiency.The sharpest edges of uncoupling agents are not need existing sewage treatment process is done large improvement, only need set up administration device and get final product.
The molten born of the same parents' technology of the first kind is for adopting the chemical treatment methods such as ozone, alkali, acid; And the physical treatment methods such as ultrasonic wave or Mechanical Crushing decomposition.This class technology is high to equipment requirements, invests greatlyr, and easily causes secondary pollution.
Equations of The Second Kind is the quantity of bacterium predator in the increase system, and the shortcoming of the sludge reduction technology that the food chain principle in this imitated natural ecosystem is carried out is kind and the difficult control of quantity of microorganism.
The 3rd class is uncoupling agents, and there is following problem in actual applications in it: the medicine of throwing domestication owing to microorganism after the long period is degraded, thereby loses uncoupling; After adding uncoupling agents, although the yield reducation of mud, from conservation of matter angle, need more oxygen deoxidation to fail to change into the organism of mud, thereby so that the oxygen-supplying amount increase; Expense to uncoupler also needs to make comparisons, because the concentration in sewage need to maintain 4-80mg/L, consumption also is surprising; Uncoupling agents greatest weakness in actual applications is the environmental safety problem.Uncoupling agents is normally than difficult for biological degradation or biology is had the compound of larger toxicity, so that biological incomplete to the degraded of uncoupling agents, this will bring new pollution to water treatment.
Summary of the invention
The invention provides a kind of method that can greatly reduce the Sludge in Sewage Treatment decrement of sludge quantity.
Realize the method for the Sludge in Sewage Treatment decrement of the object of the invention, the rich various trace elements for microorganism growth of filled biomass carrier filler in the sewage disposal main technique, the form of bio-carrier uniqueness can form the DO changeable environment, sludge retention time (SRT) is long, abundant species, the food chain length, the new mud that produces is degraded step by step by the multiple types microorganism again, reaches the purpose of sludge reduction.
Described microorganism comprises bacterium class, Mycophyta, protozoon, metazoan, oligochaetes, crustaceans 6 jumpbogroup quasi-microorganisms.
The beneficial effect of the method for Sludge in Sewage Treatment decrement of the present invention is as follows:
The method of Sludge in Sewage Treatment decrement of the present invention, the sludge output that makes sewage treatment process drops to 0.1-0.15% from the 0.8%-1% of sewage quantity, and need not uncoupler; Can not produce secondary pollution; Can conveniently control microbe species and quantity; Control is convenient, successful; Applied range can be processed the organic waste waters such as municipal administration, garden, industry and life; Stable, can bear waterpower and change of water quality, adjust workload very little.
Description of drawings
Fig. 1 is the work schematic diagram of the method for Sludge in Sewage Treatment decrement of the present invention.
Embodiment
As shown in Figure 1, the method of Sludge in Sewage Treatment decrement of the present invention, the rich various trace elements for microorganism growth of filled biomass carrier filler in the sewage disposal main technique, the form of bio-carrier uniqueness can form the DO changeable environment, sludge retention time (SRT) is long, abundant species, food chain length, the new mud that produces is degraded step by step by the multiple types microorganism again, reaches the purpose of sludge reduction.
Described microorganism comprises bacterium class, Mycophyta, protozoon, metazoan, oligochaetes, crustaceans 6 jumpbogroup quasi-microorganisms.
The advantage of the method for Sludge in Sewage Treatment decrement of the present invention is as follows:
The method of Sludge in Sewage Treatment decrement of the present invention, the sludge output that makes sewage treatment process drops to 0.1-0.15% from the 0.8%-1% of sewage quantity, and need not uncoupler; Can not produce secondary pollution; Can conveniently control microbe species and quantity; Control is convenient, successful; Applied range can be processed the organic waste waters such as municipal administration, garden, industry and life; Stable, can bear waterpower and change of water quality, adjust workload very little.
Embodiment recited above is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the spiritual prerequisite not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical solution of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (2)
1. the method for a Sludge in Sewage Treatment decrement, the rich various trace elements for microorganism growth of filled biomass carrier filler in the sewage disposal main technique, the new mud that produces is degraded step by step by the multiple types microorganism again.
2. the method for Sludge in Sewage Treatment decrement according to claim 1, it is characterized in that: described microorganism comprises bacterium class, Mycophyta, protozoon, metazoan, oligochaetes, crustaceans 6 jumpbogroup quasi-microorganisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100676833A CN103304036A (en) | 2012-03-15 | 2012-03-15 | Method for reducing sludge in sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100676833A CN103304036A (en) | 2012-03-15 | 2012-03-15 | Method for reducing sludge in sewage treatment |
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| CN103304036A true CN103304036A (en) | 2013-09-18 |
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| CN2012100676833A Pending CN103304036A (en) | 2012-03-15 | 2012-03-15 | Method for reducing sludge in sewage treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105541067A (en) * | 2016-02-03 | 2016-05-04 | 中国科学院生态环境研究中心 | Method for quickly screening efficient uncoupler for sludge reduction |
| CN106186334A (en) * | 2016-09-28 | 2016-12-07 | 张国明 | A kind of integrated sewage disposal reactor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884127A (en) * | 2006-07-07 | 2006-12-27 | 汪群慧 | Process for high performance treatment of organic sewage and reduction of excess sludge output |
| JP2010036074A (en) * | 2008-08-01 | 2010-02-18 | Nittetsu Kankyo Engineering Kk | Organic wastewater treatment method |
| CN101880117A (en) * | 2010-01-18 | 2010-11-10 | 王鹤立 | High-efficiency composite hydrolysis acidification pool used for sludge reduction |
| CN102583724A (en) * | 2012-03-28 | 2012-07-18 | 中国石油化工股份有限公司 | Method for utilizing activated sludge, ozone and magnetic field to reduce sludge |
-
2012
- 2012-03-15 CN CN2012100676833A patent/CN103304036A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884127A (en) * | 2006-07-07 | 2006-12-27 | 汪群慧 | Process for high performance treatment of organic sewage and reduction of excess sludge output |
| JP2010036074A (en) * | 2008-08-01 | 2010-02-18 | Nittetsu Kankyo Engineering Kk | Organic wastewater treatment method |
| CN101880117A (en) * | 2010-01-18 | 2010-11-10 | 王鹤立 | High-efficiency composite hydrolysis acidification pool used for sludge reduction |
| CN102583724A (en) * | 2012-03-28 | 2012-07-18 | 中国石油化工股份有限公司 | Method for utilizing activated sludge, ozone and magnetic field to reduce sludge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105541067A (en) * | 2016-02-03 | 2016-05-04 | 中国科学院生态环境研究中心 | Method for quickly screening efficient uncoupler for sludge reduction |
| CN106186334A (en) * | 2016-09-28 | 2016-12-07 | 张国明 | A kind of integrated sewage disposal reactor |
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Application publication date: 20130918 |