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Scale high-speed composting treatment method of organic wastes

A technology of organic waste and treatment method, which is applied in the field of large-scale rapid composting treatment of organic waste, can solve the problems of incomplete fermentation, low degree of automation, and slow fermentation speed, etc., so as to improve the fermentation speed and automation degree, the effect of promoting the fermentation cycle

Inactive Publication Date: 2009-10-14
肇庆奥特生态环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are low degree of automation, slow fermentation speed, long cycle, small processing capacity, and it is difficult to form industrialization
In addition, there are also agricultural and environmental problems such as fermentation can not be fully decomposed, and application to farmland will inhibit seed germination, cause crop burnt seedlings, and stench.

Method used

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  • Scale high-speed composting treatment method of organic wastes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A large-scale fast composting method for organic waste, the steps of which are as follows:

[0029] (1) Use organic waste as fermentation substrate, reuse decomposed materials as strains and desiccant, add conditioner to reduce the moisture content of organic waste from 30%; conditioner can be straw, chaff, sawdust, mushroom Slag, bentonite, kaolin, zeolite powder, fly ash, blast furnace slag, phosphate fertilizer, phosphate rock powder, peat soil or lime, etc.;

[0030] (2) Transfer the material processed in step (1) into the ventilated fermentation workshop, and add 0.1% nitrogen source of gross weight to adjust the C / N of the fermentation material and increase the required nitrogen content of the fermentation bacteria through the feeding device. Nutrients and materials are subjected to forced-air static fermentation in a ventilated fermentation workshop;

[0031] (3) Compost and ferment the material processed in step (2) in a ventilated fermentation workshop, add a ...

Embodiment 2

[0034] A large-scale fast composting method for organic waste, the steps of which are as follows:

[0035] (1) Use organic waste as fermentation substrate, reuse decomposed materials as strains and desiccant, add conditioner, and make the moisture content of organic waste 65%; conditioner can be straw, chaff, sawdust, mushroom residue , bentonite, kaolin, zeolite powder, fly ash, blast furnace slag, phosphate fertilizer, phosphate rock powder, peat soil or lime, etc.; the weight ratio of decomposed material + organic waste to conditioner can be 50-99:1-50.

[0036] (2) Transfer the material processed in step (1) into the ventilated fermentation workshop, add a nitrogen source of 20% of the total weight through the feeding device to adjust the C / N of the fermentation material and improve the life activity of the fermentation bacteria. Nutrients and materials are subjected to forced-air static fermentation in a ventilated fermentation workshop;

[0037] (3) Composting and ferme...

Embodiment 3

[0040] Such as figure 1 As shown, add decomposed material and conditioner to the organic waste, so that the ratio of organic waste: decomposed material: chaff: bentonite: zeolite powder is 70:70:3:18:3, and the moisture content is adjusted to about 50%. Then transfer to the ventilated fermentation workshop, add nitrogen source accounting for 10% of the total weight of the material through the solid fermentation oxygen addition device, adjust the pH value and C / N ratio, turn the compost by the compost turner, and then add oxygen by solid fermentation Oxygenation is added to the feeding device, and forced ventilation starts the composting process. On the second day, a nitrogen source accounting for 4% of the total weight of the material was added by a solid fermentation oxygenation and feeding device, and then turned by a compost turning machine, and then oxygenation was performed by a solid fermentation oxygenation and feeding device. On the third day, repeat the work of the s...

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Abstract

A scale high-speed composting treatment method of organic wastes comprises the following steps: the organic wastes are taken as fermentable substrates; thoroughly decomposed materials are reused as desiccants and strains; the physicochemical property of the organic wastes is adjusted to the condition required by aerobic fermentation microorganism; forced aeration fermentation is carried out in airiness fermentation plants; the fermentation temperature of fermentation materials is increased to over 70 DEG C in a very short time and high temperature fermentation is maintained for 1-15 days; organic wastes with high water content are quickly dehydrated to below 20-60% in short time and then are transferred to a static forced aeration fermentation system for secondary fermentation; therefore, the water ratios of the fermentation materials are further reduced, the fermentation temperature drops to the ambient temperature and always remains the same, and the materials are thoroughly decomposed. The method realizes scale high-speed composting treatment of the organic wastes and boosts resource treatment of such organic wastes as municipal and industrial sludges.

Description

technical field [0001] The invention relates to the field of organic waste dehydration and composting treatment methods, in particular to a large-scale and rapid composting treatment method for organic waste that utilizes a composting fermentation method to process organic wastes in a large-scale and industrialized manner to produce organic fertilizers or organic fertilizer materials. Background technique [0002] Industrial and agricultural production often faces the problem that waste cannot be effectively disposed of or it takes a lot of manpower and financial resources to deal with it. A large amount of straw and manure produced by agricultural planting and breeding industries, sludge produced by sewage treatment plants, and urban garbage Organic matter, leftovers from food and beverage processing, etc. are among the more common organic wastes. At present, most of the above-mentioned organic wastes are disposed of by landfill or incineration in our country, and improper ...

Claims

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Application Information

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IPC IPC(8): C05F17/00C05F9/04
CPCY02A40/20Y02W30/40
Inventor 麦行梁文涛曾捷赵京斌
Owner 肇庆奥特生态环保有限公司
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