Kitchen waste and household garbage incineration power generation cooperative treatment technology

Abstract

A kitchen waste and household garbage incineration power generation cooperative treatment technology comprises the following specific steps that 1, kitchen waste is collected; 2, the collected kitchen waste is subjected to exotic matter sorting, and sorted combustible materials are conveyed to a household garbage incineration power plant to be combusted for power generation; 3, materials obtained after exotic matter sorting are crushed; 4, the crushed materials are homogenized; 5, the homogenized materials are subjected to water removal treatment, and liquid materials obtained after water removal treatment are stored temporally; and 6, the liquid materials are subjected to oil-water primary separation treatment, water obtained after oil-water primary separation treatment is collected into an anaerobic fermentation tank, and biogas residues, biogas slurry and biogas are generated after anaerobic fermentation and are separated. The technology is advanced, the cooperative treatment advantages of the household garbage incineration power plant and kitchen waste fermentation are fully and reasonably utilized, and harmless, reducing and recycling garbage treatment is achieved.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and in particular relates to a collaborative treatment process of kitchen waste and domestic waste incineration and power generation. Background technique [0002] Food waste (kitchen waste) is the most important type of food waste, including food processing leftovers (kitchen waste) and food residues (swill) produced by families, schools, canteens and catering industries. Its composition is complex, mainly a mixture of oil, water, fruit peels, vegetables, rice noodles, fish, meat, bones, waste tableware, plastics, paper towels, etc. From the chemical composition, there are starch, cellulose, protein, lipids and inorganic salts. The amount of food waste in my country is very large, and it is showing a rapid upward trend. [0003] Food waste has obvious hazards and duality of resources, and its characteristics can be summarized as follows: high moisture content, up to 80%-95%; high sal...

AI Technical Summary

Problems solved by technology

[0006] (1) Pollution of the environment and impact on city appearance

Because food waste contains high organic matter and moisture, it is susceptible to the action of microorganisms, resulting in decay and deterioration; and the longer the waste is placed, the more serious the deterioration will be

Especially in summer, when the temperature is higher, the decay and deterioration will be faster. At this time, a large amount of percolation water and malodorous gas are likely to be produced, breeding mosquitoes, and causing adverse effects on environmental sanitation.

[0007] (2) Harmful to human health

[0009] (4) The infiltrate produced when food waste is piled up enters the sewage treatment system, which will increase the content of organic matter, thereby increasing the burden on the sewage treatment plant and increasing operating costs

Although China's waste-to-energy is just getting started, the outlook is positive

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