Kitchen residual garbage normal temperature anaerobic fermentation method

Abstract

The invention discloses a method to proceed normal temperature anaerobic fermentation with kitchen garbage, which comprises the following steps: mixing the kitchen garbage and water with a finite proportion; grinding to proper grain size with food breaker; sieving; sieving the surplus sludge; mixing with the grinding garbage with a finite proportion; proceeding heat treatment; getting mixture; using as joint ferment base material; placing in closed fermenter; proceeding anaerobic fermentation at room temperature; generating hydrogen; proceeding simple pretreatment; using as fuel or generating raw material. This invention possesses better economic benefit, social benefit and environmental benefit.

Description

technical field

[0001] The invention relates to a method for processing and recycling kitchen waste and biological hydrogen production, in particular to a method for producing hydrogen by anaerobic fermentation of kitchen waste at room temperature. Background technique

[0002] Kitchen waste is a general term for leftover meals discarded by catering units such as families, hotels, restaurants, government agencies, enterprises and institutions, and is a kind of organic solid waste generated in people's daily life. The composition of kitchen waste is very complex. It is a hodgepodge of oil, water, mixed vegetables, fruit peels, fruit stones, rice noodles, fish, meat, bones, waste tableware, paper towels, etc. Organic substances such as starch, dietary fiber, animal fat and protein are kitchen waste. The main organic components of waste. According to the analysis and determination of relevant units, the dry matter of undeteriorated kitchen waste contains 16.73% crude protein, ...

Images