CN104291925A - Method for producing biological organic compound fertilizer by processing municipal domestic sludge through three-step technology - Google Patents
Method for producing biological organic compound fertilizer by processing municipal domestic sludge through three-step technology Download PDFInfo
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- CN104291925A CN104291925A CN201310318003.5A CN201310318003A CN104291925A CN 104291925 A CN104291925 A CN 104291925A CN 201310318003 A CN201310318003 A CN 201310318003A CN 104291925 A CN104291925 A CN 104291925A
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- sludge
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- polyacrylamide
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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
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
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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
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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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the technical field of municipal domestic sludge recycling, and especially relates to a method for converting municipal domestic sludge into a biological organic compound fertilizer through a chemical dehydration and passivation-biological fermentation and biological control-physical drying granulation three step combined technology. The method concretely comprises the following steps: fully mixing a sludge dewatering agent and a heavy metal passivation agent with the sludge, allowing the obtained mixture to stand, mixing the treated sludge with mushroom residues, adding a compound microbial inoculant, carrying out deep aerobic fermentation to obtain a material reaching decomposing requirements, crushing the material, screening the material, adding an inorganic fertilizer, carrying out drying granulation, and attaching a biological control inoclant as an external layer to carry out coating treatment. The technology highly degrades a flocculating agent polyacrylamide difficult to decompose in the sludge, effectively uses the N source in polyacrylamide, decomposes a macromolecular polymer into micro-molecular organic compounds, and uses the micro-molecular organic compounds as a C source to realize thorough decomposition. The biological organic compound fertilizer produced in the invention has the advantages of soil improvement, biological control and rich nutrient.
Description
Technical field
The present invention relates to a kind of three-step approach process municipal sludge and produce biological organic complex fertilizer, be specifically related to adopt chemical-biological-physical synthesis treatment technology carry out the process of municipal sludge and produce biological organic complex fertilizer, belong to municipal sludge process field.
Background technology
Municipal sludge be city domestic sewage at the sedimentable matter carrying out producing in decontamination process, be the great solid waste of a class hazardness.Particularly the range of application of the water-holding agent polyacrylamide of municipal sludge and scale are just presenting quick rising tendency, the toxicity that its accumulation in the environment, migration, conversion bring also reveals, if thoroughly do not processed and controlled, serious secondary pollution will be caused to environment.How the environment difficulties that municipal sludge has become world's facing is disposed in safety, economically process.
At present, the processing mode of China's major part municipal sludge is adopt the methods such as burning, landfill mostly, Ye You minority enterprise adopts the mode process of aerobic fermentation compost, these methods not only occupy a large amount of land resources, and havoc ecotope, sewage particularly in mud invades underground water, causes local groundwater resource to be difficult to the permanent harm of restoring.The external process for municipal sludge, early than China's many decades, establishes the method for specific resistance to filtration, as removed the methods such as Heavy Metals in Sludge electro reclamation method used, chemical leaching method, bioleaching in long-term practice.But because China's national situation is different from developed countries, the especially energy scarcity problem that faces at present of China, external specific resistance to filtration method is difficult to implement in China.
Therefore, open up a sewage sludge harmlessness tallied with the national condition, minimizing, recycling treatment new way be purpose of the present invention.
Summary of the invention
For Problems existing in above China process municipal sludge mode, the invention provides the treatment process of a kind of less energy-consumption, innoxious, minimizing, resource utilization, municipal sludge can be made degradable and be fully used, namely providing a kind of and will be produced into the novel method of biological organic complex fertilizer after municipal sludge degraded.Its fertilizer produced has biological control, the advantages such as improvement soil and nutrient abundance.
The present invention is achieved in that three-step approach process municipal sludge produces biological organic complex fertilizer, and the step of the method is as follows:
(1) by put in municipal sludge sludge dehydrating agent and heavy metal deactivator mixing static stand-by;
(2) mud handled well through chemical reagent mixed with mushroom residue and add composite fungus agent and carry out deep layer aerobic fermentation;
(3) material of fermentation maturity is carried out oven dry granulation through pulverizing and adding mineral manure after screening and adds the process of biocontrol fungicide coating.
The sludge dewatering dosage added described in the step (1) of described method is the 1.5%KNH of mud weight
2(be 95% calculating by sludge moisture content), heavy metal deactivator addition is the 2%Ca of mud weight
3(PO
4)
22H
2o, both and mud mix latter static 24 hours, reach reduction sewage sludge viscosity, polypropylene segment acid amides was lost efficacy, and water molecules disengaging is come;
Mushroom residue described in the step (2) of described method mixes in right amount with mud makes humidity reach 50-65%, afterwards, the composite fungus agent adding 0.5 ‰ (Sulfate-Reducing Bacteria) and 0.5 ‰ subtilises (Bacillus subtilis) carries out deep layer aerobic fermentation (viable count 2.0 hundred million/more than g), every day carries out turning ventilation process to material, material fermentation temperature is made to remain between 55-70 DEG C more than three days, the intestinal bacteria in fermentation materials and roundworm egg can be killed, the polyacrylamide of simultaneously degrading in mud, improve the physico-chemical property of material, complete the harmless treatment of mud, when fermentation materials water content lower than 30% time be fermentation and reach the degree of becoming thoroughly decomposed.
Described in the step (3) of described method by the material reaching requirement of becoming thoroughly decomposed with add mineral manure (a large amount of N, P, K) by actual demand nutrient and dry granulation, particle requirement is less than 2mm, its component of film features and weight ratio as follows: polyvinyl alcohol (PVA) 10-20 part, amylose tri-10 parts, polyacrylamide 1-5 part, talcum powder or diatomite or gac 5-10 part, quinhydrones 0.08-0.8 part, zinc sulfate 0.5-1 part, distilled water 53.2-80.42 part; Described beneficial organism bacterial classification is all bought by normal sale channel and is obtained.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
With reference to Fig. 1, the invention will be further described.
Three-step approach process municipal sludge of the present invention produces biological organic complex fertilizer, and its concrete implementation step is as follows:
(1) in municipal sludge, add 1.5% sludge dehydrating agent KNH
2, make flocculation agent polyacrylamide in mud meet highly basic dehydration.
(2) in the mud of dehydration, 2% heavy metal deactivator Ca is added
3(PO
4) 2H
2o, makes the sludge heavy-metal immobilization after dehydration.
(3) complete on the basis of (1) and (2), isopyknic mushroom residue and mud are mixed, the water content of mud is reduced to 50-65%, be beneficial to aerobic fermentation microbiobacterial agent 0.5 ‰ sulphate reducing bacteria (Sulfate-Reducing Bacteria) and 0.5 ‰ subtilises (Bacillus subtilis) that add, sulphate reducing bacteria effect is the polyacrylamide material in degraded mud, and the effect of subtilis impels course of fermentation to accelerate.
(4) leavening temperature rises between 55-70 DEG C and reaches more than three days, it is the nuisance such as intestinal bacteria and roundworm egg in order to kill in fermentation materials, deep layer aerobic fermentation turning frequency is once a day, to ensure the growth of aerobic microbiological to create favorable conditions, when fermentation materials water content lower than 30% time be fermentation and reach the degree of becoming thoroughly decomposed.
(, 5) material of fermentation maturity is carried out pulverizing and sieving, then post-drying granulation is mixed with mineral manure, wherein in material per ton, mineral manure addition is urea 50kg, diammonium phosphate 100kg, potassium sulfate 100kg, and above-mentioned inorganic nutrients interpolation is N, P, K demand in order to ensure plant-growth.
(6) add biocontrol fungicide on particle top layer and carry out coating process, its component of film features and weight ratio as follows: polyvinyl alcohol (PVA) 10-20 part, amylose tri-10 parts, polyacrylamide 1-5 part, talcum powder or diatomite or gac 5-10 part, quinhydrones 0.08-0.8 part, zinc sulfate 0.5-1 part, distilled water 53.2-80.42 part.Bake out temperature is 120 DEG C, and drying time is 90min, and biocontrol fungicide addition requires, containing 1.0 hundred million/more than g viable bacteria-beauveria bassiana (Beauveria bassiana), to play the effect of broad-spectrum disease resistance.
The Bactericidal fertilizer water prevention sheath and culm blight of rice, cucumber downy mildew, pears black heart field control effectiveness test that the embodiment of the present invention 1 is obtained:
3 process are established in each test altogether, and repeat for 4 times, each plot area 10m2, carries out test design according to completely randomized design, wherein A: clear water blank; B: carbendazim 800 times of diluent positive controls; C: botanical pesticide of the present invention 300 times of diluents.Use medicine 4 times, interval 7d.
Investigation content and data processing: every community Stochastic choice 30 sample, 7d investigation before using medicine and after the 4th perfusion, record diseased plant number.Carry out output investigation during results, every community list is received, is weighed separately.
Sickness rate (%)=(diseased plant number/investigate total strain number) × 100.
Prevention effect (%)=[(check plot sickness rate-treatment zone sickness rate)/check plot sickness rate] × 100.
Test-results shows, pesticide control rice sheath blight disease of the present invention, cucumber downy mildew, between pears black heart and clear water blank, inequality heteropole is remarkable; Prevention effect on average reaches 78.8%, has positive effect to the water prevention sheath and culm blight of rice, arrives 86.2%.The biological organic complex fertilizer that three-step approach process municipal sludge is produced has biological control, improvement soil, the multi-efficiency such as to increase income.
Claims (5)
1. three-step approach process municipal sludge produces biological organic complex fertilizer, it is characterized in that: the method is consisted of by following steps: (1) evenly adds sludge dehydrating agent in municipal sludge and heavy metal deactivator carries out dewatering and Passivation Treatment; (2) mud is after treatment mixed with mushroom residue and adds complex micro organism fungicide carry out deep layer aerobic fermentation; (3) add after mineral manure carries out oven dry granulation in the material of fermentation maturity, add biocontrol fungicide on particle top layer and carry out coating process.
2. according to claim 1, it is characterized in that: the sludge dehydrating agent addition described in step (1) is 1.5% of mud weight, heavy metal deactivator addition is 2% of mud weight, static 24 hours; Described sludge dehydrating agent composition is KNH
2, the composition of heavy metal deactivator is Ca
3(PO
4)
22H
2o.
3. according to claim 1, it is characterized in that: after the mushroom residue described in step (2) mixes with mud, make fermentation initial humidity be 50-65%, complex micro organism fungicide (viable count 2.0 hundred million/more than g) addition is 1 ‰ of mud weight, leavening temperature is initially more than 0 DEG C, leavening temperature reaches more than three days between 55-70 DEG C, to kill the nuisance such as intestinal bacteria and roundworm egg in fermentation materials; Deep layer aerobic fermentation turning frequency is once a day, to ensure the growth of aerobic microbiological to create favorable conditions, when fermentation materials water content lower than 30% time be fermentation and reach the degree of becoming thoroughly decomposed.
4. according to claim 1, it is characterized in that: 1 ‰ composite fungus agents as described in step (2) adopt 0.5 ‰ sulphate reducing bacterias (Sulfate-Reducing Bacteria) and 0.5 ‰ subtilises (Bacillus subtilis), sulphate reducing bacteria effect is the polyacrylamide material in degraded mud, the effect of subtilis impels course of fermentation to accelerate, and viable count is the process that 2.0 hundred million/more than g can add fast response.
5. according to claim 1, it is characterized in that: as described in step (3), by the material reaching requirement of becoming thoroughly decomposed with add mineral manure (a large amount of N, P, K) by actual demand nutrient and dry granulation, particle requirement is less than 2mm, its component of film features and weight ratio as follows: polyvinyl alcohol (PVA) 10-20 part, amylose tri-10 parts, polyacrylamide 1-5 part, talcum powder or diatomite or gac 5-10 part, quinhydrones 0.08-0.8 part, zinc sulfate 0.5-1 part, distilled water 53.2-80.42 part; Wherein, in material per ton, mineral manure addition is urea 50kg, diammonium phosphate 100kg, potassium sulfate 100kg; Bake out temperature is 120 DEG C, and drying time is 90min; Biocontrol fungicide addition requires containing 1.0 hundred million/more than g viable bacteria-beauveria bassiana (Beauveria bassiana).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310318003.5A CN104291925A (en) | 2013-07-19 | 2013-07-19 | Method for producing biological organic compound fertilizer by processing municipal domestic sludge through three-step technology |
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|---|---|---|---|
| CN201310318003.5A CN104291925A (en) | 2013-07-19 | 2013-07-19 | Method for producing biological organic compound fertilizer by processing municipal domestic sludge through three-step technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495834A (en) * | 2016-10-09 | 2017-03-15 | 洛阳茂生生物技术有限公司 | A kind of method that utilization sludge prepares fertilizer |
| CN106495835A (en) * | 2016-10-09 | 2017-03-15 | 洛阳茂生生物技术有限公司 | A kind of preparation method of Organic sludge manure |
| CN107151153A (en) * | 2017-06-06 | 2017-09-12 | 扬州大学 | A kind of method that domestic sludge is made to compost |
| CN110194572A (en) * | 2019-06-13 | 2019-09-03 | 吉林省博任环保科技有限公司 | A kind of method of polyacrylamide in degradation domestic sludge |
| CN110950712A (en) * | 2019-12-25 | 2020-04-03 | 张国忠 | Sludge aerobic fermentation treatment method |
| CN111732313A (en) * | 2020-06-29 | 2020-10-02 | 重庆工程职业技术学院 | Urban domestic sludge recycling treatment process |
| CN114618873A (en) * | 2022-03-22 | 2022-06-14 | 陕西煤业化工技术研究院有限责任公司 | Comprehensive utilization system and method for coal slime and kitchen garbage |
| CN115231961A (en) * | 2022-08-30 | 2022-10-25 | 广西大学 | Method for processing organic compound fertilizer from sludge in domestic sewage |
-
2013
- 2013-07-19 CN CN201310318003.5A patent/CN104291925A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495834A (en) * | 2016-10-09 | 2017-03-15 | 洛阳茂生生物技术有限公司 | A kind of method that utilization sludge prepares fertilizer |
| CN106495835A (en) * | 2016-10-09 | 2017-03-15 | 洛阳茂生生物技术有限公司 | A kind of preparation method of Organic sludge manure |
| CN107151153A (en) * | 2017-06-06 | 2017-09-12 | 扬州大学 | A kind of method that domestic sludge is made to compost |
| CN110194572A (en) * | 2019-06-13 | 2019-09-03 | 吉林省博任环保科技有限公司 | A kind of method of polyacrylamide in degradation domestic sludge |
| CN110950712A (en) * | 2019-12-25 | 2020-04-03 | 张国忠 | Sludge aerobic fermentation treatment method |
| CN111732313A (en) * | 2020-06-29 | 2020-10-02 | 重庆工程职业技术学院 | Urban domestic sludge recycling treatment process |
| CN114618873A (en) * | 2022-03-22 | 2022-06-14 | 陕西煤业化工技术研究院有限责任公司 | Comprehensive utilization system and method for coal slime and kitchen garbage |
| CN115231961A (en) * | 2022-08-30 | 2022-10-25 | 广西大学 | Method for processing organic compound fertilizer from sludge in domestic sewage |
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Application publication date: 20150121 |
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