Complete set of device for processing kitchen waste and method thereof

Abstract

The invention relates to a complete set of device for processing kitchen waste and a method thereof. The device includes a garbage tank, a slurry tank, a clear liquid tank and a residue tank. A grab driving mechanism and a crusher are arranged near the garbage tank. The material crushed by the crusher is introduced into the slurry tank, the slurry tank is connected to a first feed pump, a first fermentation tank, a second feed pump and a second fermentation tank in sequence through the feed pipes, the bottom of the first and second fermentation tanks are respectively communicated with the inlets at the top of an extruder. A liquid phase outlet of the extruder is connected to the clear liquid tank, the extruded residue of the extruder can be sent to the residue tank, a liquid phase outlet of the second fermentation tank is connected to the clear liquid tank, the gas phase outlet of the second fermentation tank is connected to a biogas storage tank. The device has the advantage that thepre-processed kitchen waste can be converted into a COD-compliant clear liquid and high value-added biogas after crushing, pulping and two fermentations. The complete set of the device has good integrity, small land occupation and easy installation and maintenance, high processing efficiency of kitchen waste, and is suitable for industrial use.

Description

technical field [0001] The invention relates to the field of garbage treatment, in particular to a complete set of kitchen waste treatment equipment and a treatment method. Background technique [0002] Kitchen waste is a part of municipal solid waste, which refers to leftovers and leftovers discarded from the daily cooking of thousands of households, including leftovers, leftovers, vegetable leaves, fruit peels, eggshells, etc. In addition, Expired food, rotten fruits and vegetables, withered flowers and plants, and household potted plants are also part of kitchen waste, which is the wet garbage that must be sorted out by each household when garbage classification requirements are implemented in some areas. It is the biggest difference from food waste The oil content is relatively less, and the danger to the environment is relatively small, but the amount of garbage is larger and contains a lot of organic nutrients. [0003] At present, the relatively simple single-phase a...

AI Technical Summary

Problems solved by technology

[0003] At present, the relatively simple single-phase anaerobic fermentation process is mostly used in the treatment of kitchen waste. The digestion reaction is carried out in a fermenter, and the fermented organic matter is converted into biogas, and the waste water is directly discharged, but its stability is poor. , the biogas output is unstable and the fermentation speed is relatively slow, so it is not suitable for industrialized treatment and resource utilization of kitchen waste with a certain scale

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