Household garbage dry and wet separation resourceful treatment method

Abstract

The invention discloses a household garbage dry and wet separation resourceful treatment method and relates to the technical field of solid waste treatment and harmlessness. The method comprises the following steps: mixed household garbage sorting; dry garbage outward transporting; wet garbage crushing and filtering; wet garbage screening; wet garbage mechanical dehydrating; and aerobic fermentation treatment of the wet garbage in two stages: in the first stage, aerobic fermentation on cellulase is carried out; and in the second stage, ultrahigh-temperature aerobic fermentation on thermophilicbacteria is carried out. The wet garbage is treated by introducing cellulase by means of an ultrahigh-temperature aerobic composting technique, so that the fermentation period is shortened, the odoroutput is reduced, and the treatment cost is lowered. Harmlessness, reduction and reclamation of garbage are achieved by the household garbage dry and wet separation resourceful treatment method. A produced organic fertilizer product is stable in quality, and win-win of environmental protection and economical benefit is achieved.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment and detoxification, and in particular relates to a recycling treatment method for dry and wet separation of domestic garbage. Background technique [0002] There is a huge value of resource utilization in domestic waste, and classified recycling is of great significance to promote the "harmless, reduction, and resource utilization" of domestic waste. my country's garbage sorting began in the 1990s. However, due to weak policy constraints, weak public awareness, and unsound garbage sorting cycle chains, most places only stay at the source of garbage sorting. The phenomenon of first sorting and then mixing during transportation has also brought many problems to the subsequent garbage disposal. The garbage disposal method in my country mainly focuses on sanitary landfill, supplemented by incineration, composting and other treatment methods. The mixed collection of domestic garbage enter...

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Problems solved by technology

[0003] Studies have shown that kitchen waste, fruit and vegetable waste and other wet waste account for 50% to 60% of China's urban domestic waste, and are perishable and smelly, breeding mosquitoes and flies, which will have a great negative impact on the treatment and utilization of other waste , due to the large population base in China and the increasing garbage output, it is impossible to popularize detailed garbage classification in the short term. However, the traditional aerobic composting fermentation technology refers to the absorption, oxidation and decomposition of organic solid waste by relying on aerobic microorganisms under aerobic conditions. , and the biochemical process of turning it into a decomposed and stable organic fertilizer through mineralization and humification is currently the main method of composting at home and abroad, but it has long fermentation cycles, incomplete harmlessness, and odor Severe pollution and many other disadvantages

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