Biogas generating pit for co-processing domestic garbage and human dejecta of rural scattered inhabitants

Abstract

The invention discloses a biogas generating pit for co-processing domestic garbage and human dejecta of rural scattered inhabitants. The biogas generating pit comprises a main fermenting tank, a second grille fermenting tank, human dejecta and domestic garbage inlets and biogas slurry and biogas residue outlets, wherein the human dejecta and the domestic garbage are delivered into the main fermenting tank through the dejecta and domestic garbage feed inlets; the main fermenting tank is connected with the second grille fermenting tank; a separating grille is arranged between the main fermenting tank and the second grille fermenting tank and used for separating biogas slurry and biogas residues; the second grille fermenting tank is connected with the biogas slurry outlet; and the main fermenting tank is connected with the biogas residue outlet. The biogas generating pit has the advantages of comprehensively considering the processing and resource utilization of the domestic garbage and the human dejecta, and overcoming the defect of the conventional underground biogas generating pit that gas production is low in winter because of low temperature. The biogas generating pit can turn the biogas slurry and the biogas residues into fertilizers and return into the field directly, and can provide an engineering reference for controlling rural widespread pollution and improving rural ecology and environment.

Description

technical field [0001] The invention relates to a biogas utilization system, in particular to a biogas pit for co-processing domestic garbage and human excrement of scattered residents in rural areas. Background technique [0002] With the rapid development of my country's economy, the quality of water environment continues to decline. Among them, the Taihu Lake Basin is one of the most economically developed areas in my country. The linkage effect of the regional economy has brought about rapid changes in the rural production and living patterns in this basin. This led to a substantial increase in the level of environmental pollution. In April 2007, a large-scale cyanobacteria bloom appeared in Taihu Lake. Subsequently, the water source of Taihu Lake was polluted, and the tap water became foul-smelling. Most of the production and domestic water supply in Wuxi City was interrupted, causing major economic losses and serious social impacts. The main reason for the large-scale...

AI Technical Summary

Problems solved by technology

In April 2007, a large area of ​​cyanobacteria bloom appeared in Taihu Lake, and then the water source of Taihu Lake was polluted, and the tap water became foul-smelling. Most of the production and domestic water supply in Wuxi City was interrupted, causing major economic losses and serious social impacts.

[0008] There are still a series of problems on how to treat domestic sewage and domestic garbage together, and no specific technical solutions have been given on how to combine them with biogas digesters

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