Apparatus for producing biogas by utilizing rural multivariate organic waste

Abstract

An apparatus for producing biogas by utilizing rural multivariate organic waste comprises a pretreatment pool, a wastewater anaerobic fermentation pool, a straw bed reactor, a biogas slurry deep fermentation pool and a biogas slurry storage pool which are in series connection, wherein the tops of the wastewater anaerobic fermentation pool, the straw bed reactor and the biogas slurry deep fermentation pool are provided with gas outlets, the wastewater anaerobic fermentation pool and the biogas slurry deep fermentation pool employs an AF technology, the pretreatment pool is inside provided with a collection mesh bag, and straw cases are filled with straw. The advantages comprise that: the apparatus has the characteristics of being wide in fermentation raw material adaptation scope, little in one-time investment, simple and convenient in operation, low in operation, management and protection costs, good and stable in biogas generating effect, and the like; the apparatus has substantially improved volume biogas output compared with conventional methods, the fermentation raw materials can be directly charged without additional pretreatment, and the apparatus is accord with the demand on rural multivariate waste processing and the present situation of shortage of rural labor force, and has extremely good popularization utilization value.

Description

technical field [0001] The invention belongs to the field of renewable energy development and utilization and environmental protection, and in particular relates to a device for producing methane by utilizing rural multiple organic wastes. Background technique [0002] In recent years, with the development of social economy, the country's emphasis on environmental protection, and farmers' desire for a green life, the protection of rural ecological environment has been raised to a very important level. In October 2005, the Fifth Plenary Session of the 16th Central Committee of the Communist Party of China passed the "Proposals for the Eleventh Five-Year Plan", proposing to solidly promote social socialist new countryside construction. Among them, the cleanliness of the village is an important part of the construction of a new socialist countryside. In addition, the Ministry of Agriculture proposed the construction of "beautiful countryside" according to the requirements of ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the high cost of raw material pretreatment, narrow adaptability to fermentation raw materials, inability to meet the demand for semi-continuous feeding of multiple wastes and the gas production rate of the tank capacity in the existing rural centralized gas supply anaerobic fermentation process and equipment Low, large fluctuations in gas production, etc., provide an anaerobic fermentation device that can meet the needs of rural solid / liquid multi-component organic waste anaerobic fermentation to produce biogas, stable gas production, and greatly improved volumetric gas production rate

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