CN106277659A - A kind of method of sludge organism acidifying dehydration - Google Patents
A kind of method of sludge organism acidifying dehydration Download PDFInfo
- Publication number
- CN106277659A CN106277659A CN201510245563.1A CN201510245563A CN106277659A CN 106277659 A CN106277659 A CN 106277659A CN 201510245563 A CN201510245563 A CN 201510245563A CN 106277659 A CN106277659 A CN 106277659A
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- CN
- China
- Prior art keywords
- sludge
- lactic acid
- acid bacteria
- dehydration
- biological acidification
- 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.)
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Abstract
The method that the invention discloses the acidifying dehydration of a kind of sludge organism, it is characterised in that comprise the following steps:
Description
Technical field
The present invention relates to a kind of sludge treatment technique, particularly relate to a kind of by sewage treatment plant
Mud carry out acidifying dehydration process technique.
Background technology
Lactic acid bacteria decomposable asymmetric choice net monosaccharide produces lactic acid.This characteristic utilizing lactic acid bacteria carries out biology
The method of acidifying is a lot, such as CN103255092B, CN101263870B at food and field of fodder.
But the method that lactic acid bacteria is used for sludge organism acidifying dehydration, is not reported.Lactic acid bacteria is led at mud
The application in territory is primarily directed to the fermentation of dewatered sludge, decrement and deodorization.
After mud acidifying, resistivity reduces, and is beneficial to dehydration, is additionally favorable for the leaching of heavy metal.Cause
This, carry out low cost and be acidified a field of always mud research mud, and biological acidification is
One of them direction.
Mud self can be carried out biological acidification (i.e. hydrolysis acidification), but after hydrolysis acidification
Sludge odor the heaviest.Therefore, at present, the biological acidification of mud is typically to select thiophilic bacillus,
Carry out under good oxygen condition, such as CN 101863612 A, CN 103936246 A.This side
Method should aeration, add again the nutrient substance such as sulfur, iron salt, relatively costly.And the existence of lactic acid bacteria
Condition is containing the nutrient needed for (or can produce after fermented) lactic acid bacteria in double oxygen, and mud,
Therefore, utilizing lactic acid bacteria that mud is carried out biological acidification, it is not necessary to aeration, required nutrient is also
It is easy to get.The method of the biological acidification dehydration of this patent, the biological acidification dehydration for mud provides one
Plant the newly selected of low cost.
Summary of the invention
The technical problem to be solved be to provide need not aeration biological acidification take off
Water method.
For thickened sludge, comprise the following steps:
Step one: the complex microbial inoculum containing lactic acid bacteria is joined in thickened sludge；
Step 2: carry out biological acidification reaction, to pH less than 5；
Step 3: the thickened sludge of biological acidification is squeezed into pressure filter, is dehydrated；
For digested sludge, comprise the following steps:
Step one: the complex microbial inoculum containing lactic acid bacteria is joined in digested sludge；
Step 2: carry out biological acidification reaction, to pH less than 5；
Step 3: pressure filter is squeezed in the digested sludge of biological acidification, is dehydrated；
As preferably, the composition of the described complex microbial inoculum containing lactic acid bacteria includes: breast
Acid bacterium, streptococcus thermophilus, yeast and glucose.
Compared with prior art, the method for a kind of sludge organism acidifying dehydration of the present invention has
Benefit effect is: biochemical reaction need not aeration, energy efficient.
Accompanying drawing explanation
Fig. 1 is the work of the method for a kind of sludge organism acidifying dehydration of the embodiment of the present invention one
Process flow schematic diagram.
Fig. 2 is the work of the method for a kind of sludge organism acidifying dehydration of the embodiment of the present invention two
Process flow schematic diagram.
Detailed description of the invention
Embodiment one:
Step one: by the microorganism containing lactic acid bacteria, streptococcus thermophilus, yeast and glucose
Composite bacteria agent capable joins in thickened sludge；
Step 2: carry out biological acidification reaction, to pH less than 5；
Step 3: the thickened sludge of biological acidification is squeezed into pressure filter, is dehydrated；
Lactic acid bacteria decomposes the saccharide in thickened sludge, produces lactic acid, and pH value declines so that
In thickened sludge, acid nonfast mushroom is suppressed or even dead, meanwhile, and the H of generation+Carry out with mud
Charge neutrality so that the dewatering of thickened sludge improves.After filter press is dehydrated, moisture content
Up to less than 60%.
Embodiment two:
Step one: by the microorganism containing lactic acid bacteria, streptococcus thermophilus, yeast and glucose
Composite bacteria agent capable joins in digested sludge；
Step 2: carry out biological acidification reaction, to pH less than 5；
Step 3: pressure filter is squeezed in the digested sludge of biological acidification, is dehydrated；
In the present embodiment, biochemical reaction process is identical with embodiment one.But digested sludge has
Machine matter is greatly decreased, and therefore, in the present embodiment, the glucose ratio in composite bacteria agent capable is high.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention,
Protection scope of the present invention is defined by the claims.Those skilled in the art can be the present invention's
In essence and protection domain, the present invention is made various amendment or equivalent, this amendment or etc.
Also should be regarded as with replacement being within the scope of the present invention.
Claims (3)
1. the method for a sludge organism acidifying dehydration, it is characterised in that comprise the following steps:
Step one: the complex microbial inoculum containing lactic acid bacteria is joined in thickened sludge；
Step 2: carry out biological acidification reaction, to pH less than 5；
Step 3: the thickened sludge of biological acidification is squeezed into pressure filter, is dehydrated.
2. the method for a sludge organism acidifying dehydration, it is characterised in that comprise the following steps:
Step one: the complex microbial inoculum containing lactic acid bacteria is joined in digested sludge；
Step 2: carry out biological acidification reaction, to pH less than 5；
Step 3: pressure filter is squeezed in the digested sludge of biological acidification, is dehydrated.
3. the method being acidified dehydration according to a kind of sludge organism described in claim 1 and claim 2, it is characterised in that the composition of the described complex microbial inoculum containing lactic acid bacteria includes: lactic acid bacteria, streptococcus thermophilus, yeast and glucose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245563.1A CN106277659A (en) | 2015-05-15 | 2015-05-15 | A kind of method of sludge organism acidifying dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245563.1A CN106277659A (en) | 2015-05-15 | 2015-05-15 | A kind of method of sludge organism acidifying dehydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106277659A true CN106277659A (en) | 2017-01-04 |
Family
ID=57631196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510245563.1A Pending CN106277659A (en) | 2015-05-15 | 2015-05-15 | A kind of method of sludge organism acidifying dehydration |
Country Status (1)
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058472A (en) * | 2007-01-30 | 2007-10-24 | 魏普民 | Digestion method for activated sludge |
| CN102604867A (en) * | 2012-03-16 | 2012-07-25 | 东南大学 | Compound strain and method for treating industrial sludge by compound strain |
| CN102776138A (en) * | 2012-05-02 | 2012-11-14 | 山西大同大学 | Compound microorganism preparation for materialized sludge treatment and method for preparing same |
| CN103467149A (en) * | 2013-09-17 | 2013-12-25 | 厦门绿标生物科技有限公司 | Method for processing sludge by using complex microbial agent |
| CN103896474A (en) * | 2014-03-13 | 2014-07-02 | 南京道科环境科技有限公司 | Efficient dehydrating method for sludge |
| CN103936246A (en) * | 2014-03-27 | 2014-07-23 | 南京农业大学 | New method for deeply dewatering sludge through bio-leaching process rapid conditioning |
| CN104150727A (en) * | 2014-08-01 | 2014-11-19 | 石家庄开发区德赛化工有限公司 | Pretreatment method for enhancing anaerobic sludge digestion by virtue of compound microorganism bacterium agent |
-
2015
- 2015-05-15 CN CN201510245563.1A patent/CN106277659A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058472A (en) * | 2007-01-30 | 2007-10-24 | 魏普民 | Digestion method for activated sludge |
| CN102604867A (en) * | 2012-03-16 | 2012-07-25 | 东南大学 | Compound strain and method for treating industrial sludge by compound strain |
| CN102776138A (en) * | 2012-05-02 | 2012-11-14 | 山西大同大学 | Compound microorganism preparation for materialized sludge treatment and method for preparing same |
| CN103467149A (en) * | 2013-09-17 | 2013-12-25 | 厦门绿标生物科技有限公司 | Method for processing sludge by using complex microbial agent |
| CN103896474A (en) * | 2014-03-13 | 2014-07-02 | 南京道科环境科技有限公司 | Efficient dehydrating method for sludge |
| CN103936246A (en) * | 2014-03-27 | 2014-07-23 | 南京农业大学 | New method for deeply dewatering sludge through bio-leaching process rapid conditioning |
| CN104150727A (en) * | 2014-08-01 | 2014-11-19 | 石家庄开发区德赛化工有限公司 | Pretreatment method for enhancing anaerobic sludge digestion by virtue of compound microorganism bacterium agent |
Non-Patent Citations (2)
| Title |
|---|
| 胡家俊，等: "《环境工程微生物学》", 31 March 1998, 高等教育出版社 * |
| 高蓉菁，等: "剩余污泥的乳酸化及减量化研究", 《污染防治技术》 * |
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Application publication date: 20170104 |