Method for producing natural gas and fabricated wall plate through food and kitchen waste and production line

Abstract

The invention provides a method for producing natural gas and a fabricated wall plate through food and kitchen waste and a production line, and belongs to the fields of environmental protection and building materials. The problem of resource recycling of the food and kitchen waste is solved. The method includes the steps that urban food and kitchen waste is sorted, separated, hydrolyzed and acidified, and then sent into an anaerobic fermentation tank for fermentation; biogas produced by fermentation is purified and then used as fuel for calcining ceramsite, or refined andpurified into the natural gasas fuel to be sold; after biogas liquid and biogas residue after anaerobic fermentation are subjected to solid-liquid separation, the biogas residue and construction waste soil or river sludgeare subjected to mixing granulation to be sent to a ceramsite calcination device to calcine lightweight ceramsite; the lightweight fabricated wall plate is prepared from the lightweight ceramsite, cement, plaster and the like; and the biogas liquid after solid-liquid separation can be returned to the production process to prepare slurry, or is purified and deodorizedfor making the lightweight prefabricated wall plate. Energy recovery and material buildingrecovery of urban food and kitchen waste treatment are realized, coordination and unification of environmental, social and economic benefitsis ensured, and the method for producing the natural gas and the fabricated wall plate through the food and kitchen waste is suitable for treatment and comprehensive utilization of the food and kitchen garbage waste in large, medium and small cities.

Description

technical field [0001] The invention belongs to the field of environmental protection and building materials, and mainly relates to a method and a production line for producing natural gas and assembled wallboards by using kitchen waste. Background technique [0002] A large amount of kitchen waste and organic waste are produced in the city every day. Due to poor management, they have not been effectively dealt with, and have been illegally operated by criminals and private workshops to earn profits. Some food waste is transported to individual pig farms as feed for pigs, but due to lack of effective treatment, the fed pigs suffer from various diseases, which are called garbage pigs. Some kitchen waste is sent to private workshops to illegally produce gutter oil and sell it on the dining table through illegal means, endangering people's health. There are also food wastes that are randomly thrown away. Because the food waste contains a large amount of organic matter and is e...

AI Technical Summary

Problems solved by technology

Some kitchen waste is sent to private workshops to illegally produce gutter oil and sell it on the dining table through illegal means, endangering people's health

There are also food wastes that are randomly thrown away. Because the food waste contains a large amount of organic matter and is easily corrupted, it will pollute the environment if it is not effectively treated and utilized.

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