CN104529583A - Method for producing organic fertilizer by treating sludge by use of microbial technology - Google Patents
Method for producing organic fertilizer by treating sludge by use of microbial technology Download PDFInfo
- Publication number
- CN104529583A CN104529583A CN201510022235.5A CN201510022235A CN104529583A CN 104529583 A CN104529583 A CN 104529583A CN 201510022235 A CN201510022235 A CN 201510022235A CN 104529583 A CN104529583 A CN 104529583A
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- Prior art keywords
- sludge
- fertilizer
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- microbial
- sodium
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/02—Fertilisers containing other nitrates containing sodium or potassium nitrate
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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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a method for producing an organic fertilizer by treating sludge by use of a microbial technology. The method comprises the following steps: 1) dewatering sludge; 2) performing constant-temperature hydrothermal treatment on sludge for 2-5 hours at a temperature ranging from 100 to 120 DEG C; 3) culturing a microbial flora by use of a lysozyme broth culture medium, and then inoculating the sludge with the microbial flora, adding a nutrient solution, fermenting under the conditions of a temperature ranging from 50 to 65 DEG C and the moisture content of 45-55%, turning over every four hours, and obtaining the organic fertilizer conforming to organic fertilizer associated standards 5-7 days later. The method for producing the organic fertilizer by treating the sludge by use of the microbial technology has the advantages that 1) the sludge is pretreated by use of high-temperature water before fermentation so that the flocculent structure and the cell membrane structure of the sludge can be broken, and therefore, the cytoplasm in the sludge cells flow out to result in great increase in the content of easily degradable organic matters in the compost and to promote smooth aerobic fermentation, and 2) the constructed microbial flora is capable of efficiently degrading the sludge by use of macromolecular organic matters such as proteins and amino acids, and cellulose.
Description
Technical field
The present invention relates to sludge degradation technology and produce fertilizer field, particularly a kind of method utilizing microbial technique lignin-sludge to produce fertilizer.
Background technology
In the last few years, along with social development, living standards of the people improve constantly, and municipal sewage plant is also more and more universal, and the sludge quantity of generation is also increasing, and its process is disposed and also therefore become a problem demanding prompt solution.Composting effectively utilizes mode as one to organic matter in mud and mud can be transformed into fertilizer and be used for agriculture production, which is with low cost, the recycling of mud can be realized, but sewage work's mud out, after standing storage is placed, can become the mud of black, this mud does not have the pliotherm period in the process of compost, all the time be in normal temperature state, then can not kill the pathogenic bacteria in mud, organic matter can not get good humify.The present invention is directed to " black mud " and be difficult to process expansion research, a kind of sludge pretreatment mode is proposed, and develop pointed microorganism species, mud after above-mentioned pre-treatment can be degraded by this microorganism species well, degradation process has the various features of compost simultaneously, the compost product produced is fertilizer, and set quota in fertilizer conformance with standard NY525-2012.
Summary of the invention
The object of the invention is for above-mentioned existing problems, a kind of method utilizing microbial technique lignin-sludge to produce fertilizer is provided, the method utilizes high-temperature water to carry out pre-treatment to mud, has broken flocculent structure and the cellularstructure of mud, and the tenuigenin in mud is flowed out; The microorganism species built can utilize the larger molecular organics such as protein, amino acid, also can utilize Mierocrystalline cellulose etc. simultaneously, thus constitute a multiple-microorganism food chain, realize the efficient degradation of mud.
Technical scheme of the present invention:
Utilize microbial technique lignin-sludge to produce a method for fertilizer, step is as follows:
1) by sludge dewatering, moisture percentage in sewage sludge is made not higher than 80%;
2) by above-mentioned dewatered sludge incubation water heating process 2-5 hour under 100-130 DEG C of condition;
3) with bacteriolyze meat soup (LB) culture medium culturing microbial bacteria, then be that 1:1000-1100 is inoculated in mud by microbial bacteria according to mass ratio, and add the nutritive medium of 1-5wt%, temperature be 50-65 DEG C, water ratio ferments under being 45-55% condition, once, after 5-7 days, mud is degraded and obtains meeting the fertilizer of fertilizer relevant criterion (NY515-2012) in turning in every 4 hours.
Described bacteriolyze meat soup (LB) substratum is mixed by Tryptones, yeast extraction, sodium-chlor and deionized water and forms, and in mixed solution, the concentration of each component is Tryptones 10g/L, yeast extract 5g/L, sodium-chlor 10g/L, and the pH of mixed solution is 7.4; That shaking table cultivates 24 hours at 50-65 DEG C by the method for bacteriolyze meat soup (LB) culture medium culturing microbial bacteria, rotating speed 150rpm.
The mixture that described microbial bacteria is subtilis, bacillus cereus conciliates urea genus bacillus, the quality share of each component is subtilis 40 parts, bacillus cereus 40 parts, solution urea genus bacillus 20 parts.
Described nutritive medium is the mixed solution that sodium-chlor, saltpetre, magnesium sulfate, ferrous sulfate, manganous sulfate and zinc sulfate are dissolved in deionized water, in mixed solution, the mass ratio of sodium-chlor, saltpetre, magnesium sulfate, ferrous sulfate, manganous sulfate and zinc sulfate is 2:1:1:1:1:1, and the concentration of sodium-chlor is 80g/L.
Advantage of the present invention and beneficial effect are:
1) adopt high-temperature water to sludge pretreatment before fermentation, broken flocculent structure and the membrane structure of mud, made cytoplasmic streaming in mud cell out, to cause in heap body easily degraded organic content greatly to increase, promote that aerobic fermentation carries out smoothly;
2) utilize the method for microbial technique process rubbish from cooking, treatment cycle is short, environmental protection.
Accompanying drawing explanation
Fig. 1 is that different microorganisms is to pretreated sludge degradation design sketch.
Embodiment
The present invention is described in further detail by following examples, but the present embodiment the technology contents that describes be illustrative, instead of determinate, protection scope of the present invention should do not limited to according to this.
Embodiment:
Utilize microbial technique lignin-sludge to produce a method for fertilizer, step is as follows:
1) by sludge dewatering, moisture percentage in sewage sludge is made to be 80%;
2) by the incubation water heating process 3 hours under 121 DEG C of conditions of above-mentioned dewatered sludge;
3) with bacteriolyze meat soup (LB) culture medium culturing microbial bacteria, described bacteriolyze meat soup (LB) substratum is mixed by Tryptones, yeast extraction, sodium-chlor and deionized water and forms, in mixed solution, the concentration of each component is Tryptones 10g/L, yeast extract 5g/L, sodium-chlor 10g/L, and the pH of mixed solution is 7.4; Cultural method is that shaking table cultivates 24 hours at 50 DEG C, rotating speed 150rpm; Then be that 1:1000 is inoculated in mud by microbial bacteria according to mass ratio, the mixture that described microbial bacteria is subtilis, bacillus cereus conciliates urea genus bacillus, the quality share of each component is subtilis 40 parts, bacillus cereus 40 parts, solution urea genus bacillus 20 parts; Add the nutritive medium of 5wt% again, described nutritive medium is the mixed solution that sodium-chlor, saltpetre, magnesium sulfate, ferrous sulfate, manganous sulfate and zinc sulfate are dissolved in deionized water, in mixed solution, the mass ratio of sodium-chlor, saltpetre, magnesium sulfate, ferrous sulfate, manganous sulfate and zinc sulfate is 2:1:1:1:1:1, and the concentration of sodium-chlor is 80g/L; Maintaining temperature of reactor is 65 DEG C, and regulation system water ratio is 55%, and turning in every 4 hours once; After 5 days, mud is degraded and obtains meeting the fertilizer of fertilizer relevant criterion (NY515-2012), and organic content is 68%.
Fig. 1 is that different microorganisms is to pretreated sludge degradation design sketch, show in figure: use single bacterial strain to the degradation efficiency of mud much smaller than the degradation efficiency of composite fungus agent to mud, the more single bacterial strain height about 67% of degradation efficiency of compost composite fungus agent after 6 days, the more single bacterial strain height about 40% of degradation efficiency of compost composite fungus agent after 8 days.Utilize microbiobacterial agent degraded mud can realize sludge reduction more than 60% in 6 days, single bacterial strain can realize sludge reduction 45% through 8 days.
Claims (4)
1. utilize microbial technique lignin-sludge to produce a method for fertilizer, it is characterized in that step is as follows:
1) by sludge dewatering, moisture percentage in sewage sludge is made not higher than 80%;
2) by above-mentioned dewatered sludge incubation water heating process 2-5 hour under 100-130 DEG C of condition;
3) with bacteriolyze meat soup (LB) culture medium culturing microbial bacteria, then be that 1:1000-1100 is inoculated in mud by microbial bacteria according to mass ratio, and add the nutritive medium of 1-5wt%, temperature be 50-65 DEG C, water ratio ferments under being 45-55% condition, once, after 5-7 days, mud is degraded and obtains meeting the fertilizer of fertilizer relevant criterion (NY515-2012) in turning in every 4 hours.
2. utilize microbial technique lignin-sludge to produce the method for fertilizer according to claim 1, it is characterized in that: described bacteriolyze meat soup (LB) substratum is mixed by Tryptones, yeast extraction, sodium-chlor and deionized water and forms, in mixed solution, the concentration of each component is Tryptones 10g/L, yeast extract 5g/L, sodium-chlor 10g/L, and the pH of mixed solution is 7.4; That shaking table cultivates 24 hours at 50-65 DEG C by the method for bacteriolyze meat soup (LB) culture medium culturing microbial bacteria, rotating speed 150rpm.
3. utilize microbial technique lignin-sludge to produce the method for fertilizer according to claim 1, it is characterized in that: the mixture that described microbial bacteria is subtilis, bacillus cereus conciliates urea genus bacillus, the quality share of each component is subtilis 40 parts, bacillus cereus 40 parts, solution urea genus bacillus 20 parts.
4. utilize microbial technique lignin-sludge to produce the method for fertilizer according to claim 1, it is characterized in that: described nutritive medium is the mixed solution that sodium-chlor, saltpetre, magnesium sulfate, ferrous sulfate, manganous sulfate and zinc sulfate are dissolved in deionized water, in mixed solution, the mass ratio of sodium-chlor, saltpetre, magnesium sulfate, ferrous sulfate, manganous sulfate and zinc sulfate is 2:1:1:1:1:1, and the concentration of sodium-chlor is 80g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022235.5A CN104529583A (en) | 2015-01-16 | 2015-01-16 | Method for producing organic fertilizer by treating sludge by use of microbial technology |
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|---|---|---|---|
| CN201510022235.5A CN104529583A (en) | 2015-01-16 | 2015-01-16 | Method for producing organic fertilizer by treating sludge by use of microbial technology |
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| CN104529583A true CN104529583A (en) | 2015-04-22 |
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| CN201510022235.5A Pending CN104529583A (en) | 2015-01-16 | 2015-01-16 | Method for producing organic fertilizer by treating sludge by use of microbial technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061037A (en) * | 2015-08-03 | 2015-11-18 | 山东沃科奇实业有限公司 | Microbial organic fertilizer containing modified municipal sludge, and preparation method thereof |
| CN113185370A (en) * | 2021-05-27 | 2021-07-30 | 厦门大学嘉庚学院 | Method for preparing organic fertilizer by using river and lake dredging sludge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725737A (en) * | 2013-12-27 | 2014-04-16 | 天津北洋百川生物技术有限公司 | Method for producing sludge protein by treating surplus sludge by biological method |
| CN103803700A (en) * | 2012-11-07 | 2014-05-21 | 北京市市政四建设工程有限责任公司 | Enrichment culture method of activated sludge in sewage treatment plant in plateau alpine region |
-
2015
- 2015-01-16 CN CN201510022235.5A patent/CN104529583A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803700A (en) * | 2012-11-07 | 2014-05-21 | 北京市市政四建设工程有限责任公司 | Enrichment culture method of activated sludge in sewage treatment plant in plateau alpine region |
| CN103725737A (en) * | 2013-12-27 | 2014-04-16 | 天津北洋百川生物技术有限公司 | Method for producing sludge protein by treating surplus sludge by biological method |
Non-Patent Citations (3)
| Title |
|---|
| 刘树根: "污泥高温好氧消化过程的生物多样性分析", 《环境科学学报》 * |
| 庄伟强: "《固体废物处理与处置》", 31 August 2009, 化学工业出版社 * |
| 王芬: "超声破解对污泥特性的影响机制与零剩余污泥排放工艺研究", 《中国优秀博硕士学位论文全文数据库（博士） 工程科技I辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061037A (en) * | 2015-08-03 | 2015-11-18 | 山东沃科奇实业有限公司 | Microbial organic fertilizer containing modified municipal sludge, and preparation method thereof |
| CN105061037B (en) * | 2015-08-03 | 2018-01-23 | 山东沃科奇实业有限公司 | A kind of microbial organic fertilizer containing modified municipal sludge and preparation method thereof |
| CN113185370A (en) * | 2021-05-27 | 2021-07-30 | 厦门大学嘉庚学院 | Method for preparing organic fertilizer by using river and lake dredging sludge |
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Application publication date: 20150422 |
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