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CN101792341A - Method of organic solid waste bin aerobic composting under extreme low temperature - Google Patents

Method of organic solid waste bin aerobic composting under extreme low temperature Download PDF

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Publication number
CN101792341A
CN101792341A CN201010137587A CN201010137587A CN101792341A CN 101792341 A CN101792341 A CN 101792341A CN 201010137587 A CN201010137587 A CN 201010137587A CN 201010137587 A CN201010137587 A CN 201010137587A CN 101792341 A CN101792341 A CN 101792341A
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China
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compost
organic solid
straw
solid waste
glucose
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李伟光
王科
邹锦林
李云蓓
王广智
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Harbin Institute of Technology Shenzhen
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Harbin Institute of Technology Shenzhen
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Priority to CN201010137587A priority Critical patent/CN101792341A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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Abstract

极低温度下有机固体废弃物仓式好氧堆肥的方法,涉及一种有机固态废弃物的堆肥方法。本发明解决了在环境温度极低情况下因堆体升温缓慢或无法升温而不能达到并维持堆肥所需的高温阶段问题,及有机固体废弃物大量积累污染环境的问题。本发明方法如下:一、有机固体废弃物、堆肥调理剂和堆肥强化剂混匀得到堆肥物料;二、将堆肥物料置于发酵仓后预热,三、堆肥物料自行升温而进行堆肥化处理。本发明方法可使有机固体废弃物在环境温度低于零下30℃的条件下进行堆肥,堆肥周期为15~20天,堆肥化产品达到腐熟状态。本发明的方法具有对环境适应能力强、堆肥升温快、成本低、无二次污染的优点,适合在我国北方低温地区堆肥厂推广应用。The invention relates to a bin-type aerobic composting method for organic solid waste at extremely low temperature, relating to a composting method for organic solid waste. The invention solves the problem that the high temperature stage required for composting cannot be reached and maintained due to the slow or inability to raise the temperature of the compost when the ambient temperature is extremely low, and the problem that a large amount of organic solid waste accumulates and pollutes the environment. The method of the invention is as follows: 1. organic solid waste, compost conditioner and compost enhancer are mixed to obtain compost material; 2. the compost material is placed in a fermentation bin and then preheated; The method of the invention can make the organic solid waste compost under the condition that the ambient temperature is lower than minus 30 DEG C, the composting period is 15-20 days, and the composted products reach a mature state. The method of the invention has the advantages of strong adaptability to the environment, quick heating of the compost, low cost and no secondary pollution, and is suitable for popularization and application in compost plants in low-temperature areas in northern my country.

Description

The method of organic solid waste bin aerobic composting under extreme low temperature
Technical field
The present invention relates to a kind of compost method of organic solid-state castoff.
Background technology
Municipal sludge is meant the solid waste that produces in city domestic sewage, the Industrial Wastewater Treatment process.Along with the raising of wastewater treatment in China amount and the in-depth of degree of treatment, the generation of mud will have bigger growth, how reasonably to dispose sewage plant sludge, and the outlet that solves a large amount of mud has become very urgent task.
So-called aerobic compost, be to utilize the middle aerobic bacteria of organic solid castoff (municipal wastes, municipal sludge, fowl and animal excrement, food garbage etc.) to carry out thermophilic fermentation, compost temperature is being kept more than 5 days more than 50 ℃ at least, high temperature is killed pathogenic bacteria, parasitic ovum, weed seed, organism is degraded and finally is converted into the process of stable soil ulmin.Compost and other treatment processs such as landfill, burn and compare, have advantages such as construction investment is few, working cost is low, non-secondary pollution, and fermentation back product can be used as fertilizer and use the farmland, be suitable for the national conditions of China large agricultural country.But, a big technical bottleneck that influences the composting technology large-scale promotion application is, in the winter time especially at the northern China low temp area, because envrionment temperature extremely low (being lower than subzero 30 ℃), the operation of composting plant exists the temperature of piling body low all the time, and particularly local temperature can't reach the compost typical problem of national regulation, because the microorganism great majority in the heap body are mesophilic bacteria, its microbe population and activity all are subjected to very big inhibition, and a lot of microorganisms are in semidormancy or complete dormant state.Therefore, the compost initial stage, because microbe population and active low, the microbial biochemical reaction liberated heat is not enough to offset the system dispersed heat, making the intensification of heap body slowly maybe can't reach the needed high temperature section of compost (promptly kept 5 days more than 50 ℃ at least, kept at least 3 days for 55 ℃~60 ℃), thus whole composting process can't be carried out smoothly.Cause a large amount of in the winter time accumulation of organic solid castoff, the organism of fermentation stability is not because anaerobism can produce stench, and rot, not only bring problem of environmental pollution, and bring very big difficulty for the subsequent disposal of organic solid castoff to composting plant and peripheral region.
In a word, because organic solid castoff municipal wastes, municipal sludge, fowl and animal excrement, factory's food garbage etc. all are the continous way discharging throughout the year, if composting plant low temp area in the winter time can't be realized aerobic compost, then applying of this technology will be subjected to very big restriction.
Summary of the invention
Purpose of the present invention can not reach and keep the required hot stage problem of compost in order to solve under the extremely low situation of envrionment temperature because of the heap body heats up slowly maybe can't heat up, and organic solid castoff accumulates problem of environment pollution caused in a large number; And put forward the method for organic solid waste bin aerobic composting under extreme low temperature.
The method of organic solid waste bin aerobic composting under extreme low temperature realizes by following step: one, be to obtain compost material behind 55%~80% (quality) organic solid castoff and the compost amendment mixing with water ratio, wherein, the consumption of compost amendment is 0.5~2.5 times of organic solid castoff volume; Two, compost material is added in the fermentation cabin of closed aerobic composting device, adopt heating unit that the temperature that the fermentation cabin bottom is heated to compost material is reached 20~30 ℃, stop heating; Three, compost material heats up voluntarily and carries out composting then: the circular gap formula is ventilated, ventilate once every 30min, and the 10min that at every turn ventilates, ventilation is 0.05~2m 3Air/(m 3Heap body h), the compost temperature temperature rise to 45 ℃ of turnings, compost temperatures be higher than 50 ℃ every turning in 48 hours once, treat that compost temperature drops to 40 ℃ again and turns over once again, reach the back discharging of becoming thoroughly decomposed fully until the heap body, promptly finished the compost of organic solid castoff.
The inventive method is implemented in and is lower than compost under the subzero 30 ℃ condition, has avoided the not organism anaerobically fermenting of fermentation stability thereby reduced a large amount of in the winter time accumulation of organic solid castoff, has reduced second environmental pollution.The discharging of the inventive method is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.The inventive method intensification effect is very remarkable, because preheating can improve rapidly about heap temperature to 25 ℃, microorganism in the material recovers rapidly, its microbe population and increased activity, make compost spend the cold-starting stage in the short period of time smoothly and intensification rapidly, after compost heated up second day voluntarily, it is normal that its temperature rise rate just recovers substantially, after heating up, compost can promote to pile microbial growth breeding in the body, its biochemical reaction liberated heat is increased greatly, and its top temperature will improve 20~30 degrees centigrade.It is remarkable that the hot stage of the inventive method is kept effect, because a large amount of microorganisms were activated in the short period of time, biochemical reaction in the heap body carries out rapidly, its high temperature bacterium is very active at hot stage, heap temperature is elevated to rapidly more than 50 degree, and keep more than 5~7 days, and traditional low temperature compost can't be kept hot stage for a long time or can't reach a high temperature the stage at all.The remarkable in economical benefits of the inventive method, shorter owing to adding the pre-heating stage time, just need not heating after waiting to pile the body preheating, rely on microorganism self liberated heat that compost is heated up fully, and intensification reinforcer cost is cheap relatively, the cost that it increased accounts for compost cost ratio seldom, fully can large-scale promotion application.
Embodiment
Embodiment one: the method for organic solid waste bin aerobic composting under extreme low temperature realizes by following step in the present embodiment: one, be to obtain compost material behind 55%~80% (quality) organic solid castoff and the compost amendment mixing with water ratio, wherein, the consumption of compost amendment is 0.5~2.5 times of organic solid castoff volume; Two, compost material is added in the fermentation cabin of closed aerobic composting device, adopt heating unit that the temperature that the fermentation cabin bottom is heated to compost material is reached 20~30 ℃, stop heating; Three, compost material heats up voluntarily and carries out composting then: the circular gap formula is ventilated, ventilate once every 30min, and the 10min that at every turn ventilates, ventilation is 0.05~2m 3Air/(m 3Heap body h), the compost temperature temperature rise to 45 ℃ of turnings, compost temperatures be higher than 50 ℃ every turning in 48 hours once, treat that compost temperature drops to 40 ℃ again and turns over once again, reach the back discharging of becoming thoroughly decomposed fully until the heap body, promptly finished the compost of organic solid castoff.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps more than 5~7 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment two: what present embodiment and embodiment one were different is: the described organic solid castoff of step 1 is a kind of or wherein several mixing in municipal sludge, municipal wastes, fowl and animal excrement, the food garbage.Other step is identical with embodiment one with parameter.
When the present embodiment organic solid castoff is mixture, press between various organic solid castoffs arbitrarily than mixing.
Embodiment three: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 by rice husk and glucose by 100~250: 1 volume ratio is formed.Other step is identical with embodiment one or two with parameter.
Embodiment four: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 by bark and glucose by 100~250: 1 volume ratio is formed.Other step is identical with embodiment one or two with parameter.
Embodiment five: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 by stalk and glucose by 100~250: 1 volume ratio is formed.Other step is identical with embodiment one or two with parameter.
Embodiment six: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 is made up of wood chip, stalk and glucose, wherein the mass ratio of stalk and glucose is 100~200: 1, and the mass ratio of wood chip, stalk is 1: 1.Other step is identical with embodiment one or two with parameter.
Embodiment seven: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 is made up of rice husk, stalk and glucose, wherein the mass ratio of rice husk and glucose is 100~200: 1, and the mass ratio of rice husk and stalk is 1: 1.5.Other step is identical with embodiment one or two with parameter.
Embodiment eight: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 is made up of stalk, bark and glucose, wherein the mass ratio of stalk and glucose is 100~200: 1, and the mass ratio of stalk and bark is 1: 1.Other step is identical with embodiment one or two with parameter.
Embodiment nine: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 is made up of wood chip, rice husk, stalk and glucose, wherein the mass ratio of stalk and glucose is 100~200: 1, the mass ratio of stalk and rice husk is 1: 0.5, and the mass ratio of stalk and wood chip is 1: 0.5~1.Other step is identical with embodiment one or two with parameter.
Embodiment ten: what present embodiment was different with embodiment one or two is: the described compost amendment of step 1 is made up of bark, rice husk, stalk and glucose, wherein the mass ratio of stalk and glucose is 100~200: 1, the mass ratio of stalk and rice husk is 1: 1, and the mass ratio of stalk and bark is 1: 0.5~1.Other step is identical with embodiment one or two with parameter.
Embodiment 11: what present embodiment was different with one of embodiment one to ten is: the described organic solid castoff water ratio of step 1 is 60%~70% (quality).Other step is identical with one of embodiment one to ten with parameter.
Embodiment 12: what present embodiment was different with one of embodiment one to ten is: the described organic solid castoff water ratio of step 1 is 65% (quality).Other step is identical with one of embodiment one to ten with parameter.
Embodiment 13: what present embodiment was different with one of embodiment one to 12 is: the described ventilation of step 3 is 0.5~1.5m 3Air/(m 3Heap body h).Other step is identical with one of embodiment one to 12 with parameter.
Embodiment 14: what present embodiment was different with one of embodiment one to 12 is: the described ventilation of step 3 is 1m 3Air/(m 3Heap body h).Other step is identical with one of embodiment one to 12 with parameter.
Embodiment 15: the method for organic solid waste bin aerobic composting under extreme low temperature realizes by following step in the present embodiment: one, be to obtain compost material behind 55%~80% (quality) organic solid castoff and the compost amendment mixing with water ratio, wherein, the consumption of compost amendment is 2.5 times of organic solid castoff volume, described compost amendment by rice husk and glucose by 100~250: 1 volume ratio is formed; Two, compost material is added in the fermentation cabin of closed aerobic composting device, adopt heating unit that the temperature that the fermentation cabin bottom is heated to compost material is reached 20 ℃, stop heating; Three, compost material heats up voluntarily and carries out composting then: the circular gap formula is ventilated, ventilate once every 30min, and the 10min that at every turn ventilates, ventilation is 2m 3Air/(m 3Heap body h), the compost temperature temperature rise to 45 ℃ of turnings, compost temperatures be higher than 50 ℃ every turning in 48 hours once, treat that compost temperature drops to 40 ℃ again and turns over once again, reach the back discharging of becoming thoroughly decomposed fully until the heap body, promptly finished the compost of organic solid castoff.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.The energy fault of microorganism panning glucose is much lower with respect to other organism, the glucose that the composting initial stage directly adds provides easy picked-up carbon source and has emitted energy for most of microbe, and its quantity is increased sharply, increase by 1~3 order of magnitude in three days, reach 35~45 ℃ through 2~4 days compost temperatures; Glucose can make psychrophile be activated rapidly, because there is glucose effect in most of microbe, therefore after a small amount of glucose consumption that adds in advance finished, microorganism can utilize in the heap body other organism as carbon source continued growth breeding again, thereby has realized the low temperature compost.Because of glucose very easily is dissolved in water, therefore do not account for the fermentation cabin volume; And glucose adding less (consumption is 2 ‰ of organic solid castoff quality~5 ‰), cost low, nontoxic, can decompose voluntarily.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment nine: what present embodiment and embodiment eight were different is: adopt municipal sludge to substitute municipal wastes.Other step is identical with embodiment eight with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment ten: what present embodiment and embodiment eight were different is: the described compost amendment of step 1 is made up of wood chip, stalk and glucose, wherein the mass ratio of stalk and glucose is 100~200: 1, and the mass ratio of wood chip, stalk is 1: 1.Other step is identical with embodiment eight with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 11: what present embodiment and embodiment eight were different is: the water ratio of municipal wastes is 60% (quality) in the step 1.Other step is identical with embodiment eight with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 12: what present embodiment and embodiment eight were different is: step 2 adopts heating unit that the temperature that the fermentation cabin bottom is heated to compost material is reached 30 ℃.Other step is identical with embodiment eight with parameter.Other step is identical with embodiment eight with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 13: what present embodiment and embodiment eight were different is: ventilation is 0.05m in the step 2 3Air/(m 3Heap body h).Other step is identical with embodiment eight with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 14: the method for organic solid waste bin aerobic composting under extreme low temperature realizes by following step in the present embodiment: one, be to obtain compost material behind 75% (quality) food garbage, stalk and the compost reinforcer mixing with water ratio, wherein, the consumption of stalk is 2.5 times of food garbage volume, described compost amendment is made up of bark, rice husk, stalk and glucose, wherein the mass ratio of stalk and glucose is 100~200: 1, the mass ratio of stalk and rice husk is 1: 1, and the mass ratio of stalk and bark is 1: 0.5~1; Two, compost material is added in the fermentation cabin of closed aerobic composting device, adopt heating unit that the temperature that the fermentation cabin bottom is heated to compost material is reached 25 ℃, stop heating; Three, compost material heats up voluntarily and carries out composting then: the circular gap formula is ventilated, ventilate once every 30min, and the 10min that at every turn ventilates, ventilation is 1m 3Air/(m 3Heap body h), the compost temperature temperature rise to 45 ℃ of turnings, compost temperatures be higher than 50 ℃ every turning in 48 hours once, treat that compost temperature drops to 40 ℃ again and turns over once again, reach the back discharging of becoming thoroughly decomposed fully until the heap body, promptly finished the compost of organic solid castoff.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30%~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 15: what present embodiment and embodiment 14 were different is: adopt fowl and animal excrement substitute food product rubbish.Other step is identical with embodiment 14 with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 16: what present embodiment and embodiment 14 were different is: adopt the mixture of municipal sludge, municipal wastes and fowl and animal excrement to replace food garbage, wherein the mass ratio of municipal sludge, municipal wastes and fowl and animal excrement is 2: 3: 1.Other step is identical with embodiment 14 with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 17: what present embodiment and embodiment 14 were different is: the water ratio of food garbage is 80% (quality) in the step 1.Other step is identical with embodiment eight with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 days; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.
Embodiment 18: what present embodiment and embodiment 14 were different is: ventilation is 1.5m in the step 2 3Air/(m 3Heap body h).Other step is identical with embodiment 14 with parameter.
The present embodiment compost cycle is 15~20 days, and composting production becomes thoroughly decomposed and uniformity.After tested, the result shows in the process of present embodiment composting that heap temperature is elevated to rapidly more than 50 degree, and keeps 5~10 everyday; Discharging is brown, granule is loose, no foul smell, tangible humic breath is arranged, do not attract mosquitos and flies, placement rear surface adularescent a couple of days or gray mould occur, volume reduces 30~40%, apparent index reaches 1 grade, and the germination index (GI) of water violet (Lepidium sativum) seed reaches more than 90%, has shown by above-mentioned various indexs that compost reaches and has become thoroughly decomposed.

Claims (10)

1.极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于极低温度下有机固体废弃物仓式好氧堆肥的方法是通过下述步骤实现的:一、将含水率为55%~80%(质量)有机固体废弃物和堆肥调理剂混匀后得到堆肥物料,其中,堆肥调理剂的用量是有机固体废弃物体积的0.5~2.5倍;二、将堆肥物料加入密闭式好氧堆肥装置的发酵仓内,采用加热装置对发酵仓底部加热至堆肥物料的温度达到20~30℃,停止加热;三、然后堆肥物料自行升温进行堆肥化处理:循环间歇式通风,每隔30min通风一次,每次通风10min,通风量为0.05~2m3空气/(m3堆体·h),堆肥温度温度升至45℃翻堆、堆肥温度高于50℃每隔48小时翻堆一次、待堆肥温度重新降到40℃再翻一次,直至堆体达到完全腐熟后出料,即完成了有机固体废弃物的堆肥。1. The method for bin-type aerobic composting of organic solid waste under extremely low temperature is characterized in that the method for bin-type aerobic composting of organic solid waste under extremely low temperature is realized by the following steps: one, the moisture content is 55%~80% (quality) of organic solid waste and compost conditioner are mixed to obtain compost material, wherein, the consumption of compost conditioner is 0.5~2.5 times of the volume of organic solid waste; In the fermentation bin of the aerobic composting device, use a heating device to heat the bottom of the fermentation bin until the temperature of the compost material reaches 20-30°C, then stop heating; 3. Then the compost material will heat up by itself for composting treatment: cycle intermittent ventilation, every Ventilate once every 30 minutes, and ventilate for 10 minutes each time. The ventilation volume is 0.05~2m 3 air/(m 3 compost·h). 1. When the compost temperature drops to 40°C, turn it over again until the compost is fully decomposed and discharged, that is, the composting of organic solid waste is completed. 2.根据权利要求1所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述有机固体废弃物为城市污泥、城市垃圾、禽畜粪便、食品垃圾中的一种或其中几种的混合。2. The method for bin-type aerobic composting of organic solid wastes at extremely low temperatures according to claim 1, wherein the organic solid wastes in step one are municipal sludge, municipal waste, poultry manure, food waste one or a mixture of several of them. 3.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由稻壳和葡萄糖按100~250∶1的体积比组成。3. The method for bin-type aerobic composting of organic solid waste at extremely low temperatures according to claim 1 or 2, wherein the compost conditioner in step 1 is composed of rice husk and glucose in a volume of 100 to 250:1 than composition. 4.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由树皮和葡萄糖按100~250∶1的体积比组成。4. The method for bin-type aerobic composting of organic solid waste according to claim 1 or 2, characterized in that the compost conditioner in step 1 is composed of bark and glucose in a volume of 100 to 250:1 than composition. 5.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由秸秆和葡萄糖按100~250∶1的体积比组成。5. The method for bin-type aerobic composting of organic solid waste at extremely low temperatures according to claim 1 or 2, wherein the compost conditioner in step 1 is composed of straw and glucose in a volume ratio of 100 to 250:1 composition. 6.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由木屑、秸秆和葡萄糖组成,其中秸秆和葡萄糖的质量比为100~200∶1,木屑、秸秆的质量比为1∶1。6. The method for bin-type aerobic composting of organic solid waste at extremely low temperature according to claim 1 or 2, characterized in that the compost conditioner in step 1 is composed of sawdust, straw and glucose, wherein the content of straw and glucose The mass ratio is 100-200:1, and the mass ratio of sawdust and straw is 1:1. 7.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由稻壳、秸秆和葡萄糖组成,其中稻壳和葡萄糖的质量比为100~200∶1,稻壳和秸秆的质量比为1∶1.5。7. The method for bin-type aerobic composting of organic solid waste at extremely low temperature according to claim 1 or 2, characterized in that the compost conditioner in step 1 is composed of rice husk, straw and glucose, wherein rice husk and The mass ratio of glucose is 100-200:1, and the mass ratio of rice husk and straw is 1:1.5. 8.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由秸秆、树皮和葡萄糖组成,其中秸秆和葡萄糖的质量比为100~200∶1,秸秆和树皮的质量比为1∶1。8. The method for bin-type aerobic composting of organic solid waste at extremely low temperature according to claim 1 or 2, characterized in that the compost conditioner in step 1 is composed of straw, bark and glucose, wherein straw and glucose The mass ratio of straw and bark is 100-200:1, and the mass ratio of straw and bark is 1:1. 9.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由木屑、稻壳、秸秆和葡萄糖组成,其中秸秆和葡萄糖的质量比为100~200∶1,秸秆和稻壳的质量比为1∶0.5,秸秆和木屑的质量比为1∶0.5~1。9. The method for bin-type aerobic composting of organic solid waste at extremely low temperature according to claim 1 or 2, characterized in that the compost conditioner in step 1 is composed of sawdust, rice husk, straw and glucose, wherein the straw The mass ratio of straw to glucose is 100-200:1, the mass ratio of straw to rice husk is 1:0.5, and the mass ratio of straw to sawdust is 1:0.5-1. 10.根据权利要求1或2所述的极低温度下有机固体废弃物仓式好氧堆肥的方法,其特征在于步骤一所述堆肥调理剂由树皮、稻壳、秸秆和葡萄糖组成,其中秸秆和葡萄糖的质量比为100~200∶1,秸秆和稻壳的质量比为1∶1,秸秆和树皮的质量比为1∶0.5~1。10. The method for bin-type aerobic composting of organic solid waste at extremely low temperature according to claim 1 or 2, characterized in that the compost conditioner in step 1 is composed of bark, rice husk, straw and glucose, wherein The mass ratio of straw to glucose is 100-200:1, the mass ratio of straw to rice husk is 1:1, and the mass ratio of straw to bark is 1:0.5-1.
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Publication number Priority date Publication date Assignee Title
CN102408259A (en) * 2011-07-22 2012-04-11 华北电力大学 Solid waste co-composting stepwise regulation and control system and method
CN102408259B (en) * 2011-07-22 2013-07-31 华北电力大学 Solid waste co-composting stepwise regulation and control system and method
CN102515886A (en) * 2011-11-02 2012-06-27 中昌环保集团有限公司 Process for producing biological bacterial fertilizer by taking domestic sewage plant dewatered sludge as raw material
CN102515886B (en) * 2011-11-02 2014-04-16 中昌环保集团有限公司 Process for producing biological bacterial fertilizer by taking domestic sewage plant dewatered sludge as raw material
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CN109400269A (en) * 2018-12-31 2019-03-01 福建省农业科学院土壤肥料研究所 A method of organic fertilizer is produced using fowl and animal excrement
CN115160081A (en) * 2022-06-16 2022-10-11 西安智同天地环境工程有限公司 Composting method suitable for low-temperature environment

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