Pretreating process for garbage without stack yard

Abstract

The pretreating process of garbage without stack yard includes the following steps: sorting; classifying in size; conveying to fermenting tank; and post-treatment. The post-treatment step incldues direct fermenting treatment of garbage below 15 mm in fermenting cylinder; crushing garbage over 15 mm size; sterilizing fermented organic garbage before cooling and grinding; forming organic fertilzierand packing; the present invention has the advantages of reduced used field, reduced environmental pollution caused by stacked garbage, reduced harmful matter entering to the organic fertilizer, and increased fermenting time and thus fertility of the organic fertilizer.

Description

technical field [0001] The invention relates to a garbage treatment process, mainly a pre-treatment process without a dumping site for garbage Background technique [0002] With the rapid development of economy and society and the acceleration of urbanization, the amount of garbage generated in cities in my country is increasing continuously, with an average annual growth rate of more than 10%. The problem of domestic garbage pollution has become increasingly prominent, seriously affecting the urban environmental sanitation and the people. quality of life. At present, the waste treatment in small towns is simple landfill treatment, and the domestic waste treatment in large cities needs to invest 800-100 million yuan to build waste-to-energy plants to meet the requirements of harmless treatment; many small towns have low domestic waste treatment standards and simple equipment , It is just a simple landfill, forming a new pollution source and causing secon...

AI Technical Summary

Problems solved by technology

Moreover, before landfilling, the garbage is piled in the open air, which not only occupies the use site, but also produces corrosive odors that pollute the surrounding environment.