CN102060575B - Quick, sanitary and innocent composting treatment technical method for urban domestic sludge - Google Patents
Quick, sanitary and innocent composting treatment technical method for urban domestic sludge Download PDFInfo
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- CN102060575B CN102060575B CN2010105705091A CN201010570509A CN102060575B CN 102060575 B CN102060575 B CN 102060575B CN 2010105705091 A CN2010105705091 A CN 2010105705091A CN 201010570509 A CN201010570509 A CN 201010570509A CN 102060575 B CN102060575 B CN 102060575B
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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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Abstract
The invention provides a quick, sanitary and innocent composting treatment technical method for urban domestic sludge. The method comprises the following steps of: adjusting a proportion of urban sludge composting materials, and adding high temperature aerobic fermentation bacteria; uniformly stirring, conveying into a fermentation tank, and building fermentation piles; performing innocent treatment through ventilating heating and high temperature fermentation; drying, mechanically crushing and sieving to obtain an organic fertilizer; and metering, packaging, and warehousing for sale. By the method, the urban domestic sludge is subjected to quick, sanitary and innocent treatment, the pollution problem caused by the urban sludge is solved, hidden epidemic possibly caused by urban pollution is eliminated, wastes are changed into wealth, the urban sludge is treated into the organic fertilizer, and the final treatment problem of the urban domestic sludge is solved.
Description
Technical field
The present invention relates to the innoxious compost treatment technological method of the quick health of a kind of municipal sludge.
Background technology
Because the size of urban population constantly enlarges, the rubbish that the city produces is more and more, and the quantity discharged of municipal effluent is also increasing.According to statistics, China's year quantity of wastewater effluent had reached 29,700,000,000 tons in 2006, and a year sludge creation amount has reached 1,782 ten thousand tons, and these numerals are still increasing in recent years.Although municipal sludge contains the organic matters such as abundant nitrogen, phosphorus, potassium, it is good organic fertilizer resource, but also contain a large amount of pathogenic bacterias and sick worm's ovum, if untimely processing, pathogenic bacteria meeting amount reproduction, can produce a large amount of foul gass on the one hand, the danger that exists on the other hand epidemic situation to propagate, sick worm's ovum can be hatched harmful parasites such as producing mosquito, fly simultaneously.In the today of advocating energetically environmental protection, the municipal sludge that sharply increases has affected the urban life environment greatly, and how properly disposing municipal sludge becomes the task of top priority.
Summary of the invention
The purpose of this invention is to provide the innoxious compost treatment technological method of the quick health of a kind of municipal sludge,
The method is health harmless treatment municipal sludge fast, solves the pollution problem that municipal sludge causes,
Eliminate the epidemic situation hidden danger that municipal pollution may be brought, can also turn waste into wealth, the municipal sludge processing is become organic fertilizer, solve municipal sludge ultimate disposal problem.
The present invention is achieved in that the innoxious compost treatment technological method of the quick health of a kind of municipal sludge, and the step of the method is as follows:
(1) municipal sludge and the agricultural organic waste of doing are made into compost material according to weight ratio 4:1;
(2) add the fermentation of high-temperature aerobic bacterium in compost material, deliver to fermenter after stirring and build up fermentation heap;
(3) to the fermentation heap heating of ventilating, be that the high-temperature aerobic bacterium is created favourable growth conditions;
(4) when fermentation heap compost material temperature reaches more than 35 ℃, stop the heating of ventilating;
(5) the aerobic microbiological decomposing organic matter releases energy and makes the fermentation heap compost material continue to heat up, and when fermentation heap compost material temperature reaches more than 65 ℃, carries out the forced ventilation cooling, reduces the temperature of fermentation heap compost material;
(6) when fermentation heap compost material temperature drops to 55 ℃, stop ventilating;
(7) repeating step (5) is to step (6), the fermentation heap compost material is remained between 55 ℃ ~ 65 ℃, kept 7 ~ 10 days, to kill the pathogenic bacteria more than 98% and sick worm's ovum in fermentation heap, organic floculant material in degradable fermented heap compost material of while, to improve the physical property of mud, complete the health harmless treatment.
The viable count that adds the high-temperature aerobic bacterium described in the step of described method (1) is every gram more than 100,000, makes the high-temperature aerobic bacterium account for the flora advantage in the fermentation heap compost material.
The heating of ventilating described in the step of described method (3) can realize like this: the use temperature tester is measured the temperature of fermentation heap compost material, and measured temperature is transferred to temperature controller, control induced draft fan introducing hot blast by temperature controller the fermentation heap compost material is heated, for the high-temperature aerobic bacteria growing creates favorable conditions.
The cooling of forced ventilation described in the step of described method (5) is to introduce normal temperature air by induced draft fan, accelerating normal temperature air flows, take away moisture and heat in the fermentation heap compost material, thereby reduce the temperature of fermentation heap compost material, the normal temperature air of introducing simultaneously also provides oxygen for the high-temperature aerobic bacterium.
After the step of described method (7) is completed, the fermentation heap compost material is carried out drying and other treatment, then by mechanical disintegration, obtain the small particle size organic fertilizer particles after sieving, then pass through metering packing, complete organic fertilizer production.
The invention has the advantages that, quick health harmless treatment municipal sludge, solve the pollution problem that municipal sludge causes, eliminate the epidemic situation hidden danger that municipal pollution may be brought, and the inventive method can prevent the anerobe growth, avoid foul gas to cause secondary environmental pollution, simultaneously can be with the flocculation agent polyacrylamide structure deteriorate in mud, make it lose viscosity, avoid it to the destruction of Soil structure, mud is turned waste into wealth, can processing become organic fertilizer, solve the ultimate disposal problem of municipal sludge.
Description of drawings
Fig. 1 process flow sheet of the present invention.
Embodiment
With reference to Fig. 1, the invention will be further described.
The innoxious compost treatment technological method of the quick health of a kind of municipal sludge of the present invention, its concrete implementation step is as follows:
(1) municipal sludge and the agricultural organic waste of doing are made into compost material according to weight ratio 4:1;
(2) add the fermentation of high-temperature aerobic bacterium in the compost material, the viable count of high-temperature aerobic bacterium is every gram more than 100,000, delivers to fermentor tank and build up fermentation heap after stirring;
(3) the use temperature tester is measured the temperature of fermentation heap compost material, and measured temperature is transferred to temperature controller, controlling induced draft fan introducing hot blast by temperature controller heats to compost material, improve the temperature of fermentation heap compost material, accelerate simultaneously air flowing, replenish ambient oxygen, for the high-temperature aerobic bacteria growing creates favorable conditions;
(4) when fermentation heap compost material temperature reaches more than 35 ℃, stop the heating of ventilating;
(5) in high-temperature aerobic microorganism growth reproductive process, decomposing organic matter is released energy the fermentation heap compost material continue to be heated up, in 48 hours, fermentation heap compost material temperature will reach more than 55 ℃, for the high-temperature aerobic bacteria growing creates favorable conditions, make high-temperature aerobic bacterium Fast Growth, breeding, the fast decoupled organism, and discharge large energy, make temperature of charge continue to rise;
(6) aerobic microbiological continuation decomposing organic matter releases energy and makes material continue to heat up, when temperature of charge reaches more than 65 ℃, the fermentation heap compost material is carried out the forced ventilation cooling, introduce normal temperature air by induced draft fan, accelerating normal temperature air flows, take away moisture and heat in the fermentation heap compost material, thereby reduce the temperature of fermentation heap compost material, the normal temperature air of introducing has simultaneously also replenished oxygen for the high-temperature aerobic bacterium.
(7) when fermentation heap compost material temperature drops to 55 ℃, stop ventilating;
(8) repeating step (6) to step (7), remains between 55 ℃ ~ 65 ℃ the fermentation heap compost material, keeps 7 ~ 10 days, to kill the pathogenic bacteria more than 98% and sick worm's ovum in fermentation heap, completes harmless treatment.
After the step of described method (8) is completed, the fermentation heap compost material is carried out drying treatment, then by mechanical disintegration, obtain particle diameter less than the organic fertilizer particles of 2mm after sieving, then pass through metering packing, complete organic fertilizer production.
In the step (1) of described method, it is the flora advantages that account in the compost compost material in order to ensure the high-temperature aerobic bacterium that compost material inoculation high-temperature aerobic bacterium reaches 100,000 viable counts of every gram.
Claims (3)
1. the innoxious compost treatment technological method of the quick health of municipal sludge, is characterized in that, the step of described method is as follows:
(1) municipal sludge and the agricultural organic waste of doing are made into compost material according to weight ratio 4:1;
(2) add the fermentation of high-temperature aerobic bacterium in compost material, deliver to fermenter after stirring and build up fermentation heap;
(3) to the fermentation heap heating of ventilating, the use temperature tester is measured the temperature of fermentation heap compost material, and measured temperature is transferred to temperature controller, and control induced draft fan introducing hot blast by temperature controller the fermentation heap compost material is heated, be that the high-temperature aerobic bacterium is created favourable growth conditions;
(4) when fermentation heap compost material temperature reaches more than 35 ℃, stop the heating of ventilating;
(5) the aerobic microbiological decomposing organic matter releases energy and makes the fermentation heap compost material continue to heat up, and when fermentation heap compost material temperature reaches more than 65 ℃, carries out the forced ventilation cooling, reduces the temperature of fermentation heap compost material;
(6) when fermentation heap compost material temperature drops to 55 ℃, stop ventilating;
(7) repeating step (5) is to step (6), the fermentation heap compost material is remained between 55 ℃ ~ 65 ℃, kept 7 ~ 10 days, to kill the pathogenic bacteria more than 98% and sick worm's ovum in fermentation heap, organic floculant material in degradable fermented heap compost material of while, to improve the physical property of mud, complete the health harmless treatment;
(8) the fermentation heap compost material is carried out drying and other treatment, then by mechanical disintegration, obtain the small particle size organic fertilizer particles after sieving, then pass through metering packing, complete organic fertilizer production.
2. the innoxious compost treatment technological method of the quick health of a kind of municipal sludge according to claim 1, it is characterized in that, the viable count that adds the high-temperature aerobic bacterium described in the step of described method (1) is every gram more than 100,000, makes the high-temperature aerobic bacterium account for the flora advantage in the fermentation heap compost material.
3. the innoxious compost treatment technological method of the quick health of a kind of municipal sludge according to claim 1, it is characterized in that, the cooling of forced ventilation described in the step of described method (5) is to introduce normal temperature air by induced draft fan, accelerating normal temperature air flows, take away moisture and heat in the fermentation heap compost material, thereby reduce the temperature of fermentation heap compost material, the normal temperature air of introducing simultaneously also provides oxygen for the high-temperature aerobic bacterium.
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| CN2010105705091A CN102060575B (en) | 2010-12-02 | 2010-12-02 | Quick, sanitary and innocent composting treatment technical method for urban domestic sludge |
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| CN102060575B true CN102060575B (en) | 2013-06-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102924142A (en) * | 2012-11-07 | 2013-02-13 | 中华人民共和国张家港出入境检验检疫局 | Method for killing quarantine pests in wool processing leftovers through biological fermentation |
| CN102992821A (en) * | 2012-12-29 | 2013-03-27 | 同济大学苏州研究院 | Method for controlling hygienization indexes during sludge composting |
| CN103253993B (en) * | 2013-05-17 | 2015-07-15 | 福建省农业科学院农业工程技术研究所 | Organic cultivation substrate produced by utilizing cattle manure residue and sludge compost and production method thereof |
| CN107980548B (en) * | 2017-12-28 | 2023-01-17 | 杨建� | System and method for cultivating organic nutrient soil through domestic sludge anaerobic reaction |
| CN110590418A (en) * | 2019-09-03 | 2019-12-20 | 广州中科鑫汇生物科技有限公司 | Production process of municipal sludge fermented organic fertilizer |
| CN115433034A (en) * | 2022-09-26 | 2022-12-06 | 宁波天河水生态科技股份有限公司 | River and lake water purification flocculate composting process and application thereof to fertilizer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289340A (en) * | 2008-06-13 | 2008-10-22 | 浦华控股有限公司 | Semi-forced ventilation static sludge aerobic compost method |
| CN101857470A (en) * | 2010-05-26 | 2010-10-13 | 昆明光宝生物技术工程有限公司 | Method for rapidly composting sludge |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289340A (en) * | 2008-06-13 | 2008-10-22 | 浦华控股有限公司 | Semi-forced ventilation static sludge aerobic compost method |
| CN101857470A (en) * | 2010-05-26 | 2010-10-13 | 昆明光宝生物技术工程有限公司 | Method for rapidly composting sludge |
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