Processing method for changing restaurant and kitchen garbage into resource without environmental pollution

Abstract

The invention relates to a treating method for energy regeneration, resource recovery and pollution free of restaurant garbage, which comprises the steps that separated liquid material is pumped into a swage concentrating pool; then the concentrated liquid material is discharged into a regulating and pretreating pool, in which methane bacteria are inoculated; the pretreated liquid material is discharged into an anaerobic fermentation pool, in which anaerobic bacteria groups are added so that methane gas is generated and the overflowing liquid material from the anaerobic fermentation pool is led to enter an aerobic aerated pool for aerobic reaction; the liquid material after the aerobic reaction is discharged into a sedimentation tank for sedimentation. In the comprehensive utilization of 'swill', the disposing method of the invention carries out anaerobic fermentation and aerobic aerated biochemical treatment to transform part of the energy in the swill into bio-energy which is then transformed into heat energy and finally into electrical energy that is connected with power grid for use. The separated solid material is smashed, dried, sterilized, dehydrated and then added with Chinese herbal medicine to be processed into Chinese herbal medicine compound feeds and fertilizers; meanwhile, the treatment of energy regeneration, resource recovery and pollution free of restaurant garbage for restaurant garbage is realized.

Description

(1) Technical field [0001] The invention relates to a treatment method for kitchen waste. (2) Background technology [0002] With the continuous improvement of the economic level, the catering industry in various cities is also developing continuously. The output of kitchen waste in major cities has reached hundreds to thousands of tons, which not only caused a great waste of resources, but also became a waste of resources. Difficult issues of environmental protection. Good disposal of food waste is a rare tangible wealth, and improper disposal will become a big source of pollution. According to qualitative and quantitative analysis by the applicant, the water content in the kitchen waste is 75-80%, the solid content is 20-25%, the protein in the solid content is 17-22%, the fat is 2.8-3.5%, and the fiber is 2.5%. The chemical oxygen demand (COD) is generally above 100,000. Food waste is rich in fat. If it flows into rivers, lakes and seas in an orderly manner, it will le...

AI Technical Summary

Problems solved by technology

[0004] (1) Kitchen waste is a source of infection and is prone to public health hazards

[0005] (2) Feeding food waste directly to pigs is prone to "homologous" diseases, which brings losses to farmers

[0006] (3) A large number of garbage pigs fed with kitchen waste flow into the market, endangering the health of the people

[0008] The newly developed centralized and harmless treatment method of food waste is to transport and sort the collected food waste, and separate water, oil, and solids, and process the solids in the swill into protein feed and organic feed. This is a treatment method of "recycling and reuse", but the rest of the energy contained in the swill has not been rationally and comprehensively utilized, and grid-connected power generation cannot be realized

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