Recycling harmless comprehensive treating method for kitchen garbage

Abstract

The invention discloses a recycling harmless comprehensive treating method for kitchen garbage. According to the method, a receiving device, a primary crusher, a sorter, a presser, an acidifying tank, a dreg liquid tank and a fermenting tank are comprised. The treating method comprises the following steps of: receiving materials and breaking bags; primarily crushing; sorting; hydrolytic acidification; pressing and pulping and anaerobic fermentation. With the adoption of mechanical pre-treatment and post-anaerobic fermentation technology, kitchen garbage can be treated in a large scale, so that energy resource recovery of kitchen garbage can be effectively realized. Various impurities are prevented from causing failure to the operating device to the maximum degree by multiple impurity removing processes, so that the whole flow is smooth, safe and long in service life. Through serial flows, initial kitchen garbage is treated as biogas materials and improved soil materials with high value, so that resource utilization of garbage is realized. The whole process flow is simple, convenient and reasonable and good in treating effect, and the recycling harmless treating effect of kitchen garbage is realized.

Description

technical field [0001] The invention relates to the technical field of kitchen waste treatment, in particular to a comprehensive treatment method for resourceful and harmless kitchen waste. Background technique [0002] Kitchen waste refers to the residues of raw materials and finished products used in family life and diet, meat products in restaurants, hotels and markets, and fruit and vegetable waste in vegetable markets, such as leftovers, leftovers, vegetable leaves, peels, eggshells, etc. , tea dregs, bones, shells, etc. As a part of domestic waste, kitchen waste has been paid more and more attention to its reduction and recycling as a worldwide problem, and it has become one of the problems that must be faced and solved. [0003] The basic foothold of foreign kitchen waste is on-site reduction treatment, and the treatment devices are roughly divided into mechanical grinding type and biochemical treatment type. The principle of mechanical grinding is to chop all kinds...

AI Technical Summary

Problems solved by technology

The disadvantage of the composting method is that the garbage needs to be overturned, and the composting time should be more than 2 weeks to react more thoroughly

Due to the high moisture content of kitchen waste (80%-90%), landfilling will cause problems such as difficult compaction and increased leachate treatment volume; incineration will consume a lot of energy

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