Sludge gas technique of city dejecta

Abstract

The invention relates to an urban fecal biogasification technology, which takes a unit of a building as the unit; a sedimentation tank is constructed at a sewer which is corresponding to a waste water pipe of the unit residential building, and the feces is filtered, kept and centralized in the sedimentation tank; a biogas digester is constructed under the ground which is near to the side of the sedimentation tank; a connection tube which is inclined downward is arranged between the bottom part of the sedimentation tank and the biogas digester for connection; the middle part of the connection tube is provided with a closed gate; the gate is uplifted regularly, so the feces can be self-flowed into the biogas digester for fermentation; the biogas digester, a feeding tube, a discharge tube and a water pressure chamber are all arranged under the ground, and the biogas is input to the families of the users in the residential building by a gas guide pipeline. The method of the invention is simple and easy to operate, the investment is less, and the effect is good; the invention can not only solve the problems that the feces is dirty and foul, and people do not want to operate, the air is polluted and so on, but can also save the living expenses for the residents, thereby reducing the costs of sewage treatment and city sewage discharge, improving the utilization ratio of resources and providing a simple and easy channel for the comprehensive utilization of urban feces and garbage.

Description

1. Technical field [0001] The invention relates to a biogasification extended application technology, in particular to the biogasification technology used in urban concentrated residential areas with feces as the main raw material. 2. Background technology [0002] Biogas technology is a successful technology generally recognized at home and abroad to turn waste into wealth. It has been rapidly popularized in the vast rural areas of our country. In recent years, more than 460,000 biogas digesters have been built in the area where the inventor is located, which can increase farmers' income and save hundreds of millions of yuan every year. However, due to the influence of traditional concepts and the actual situation that the dirty smell of feces has a great impact on the environment, no one dares to think about the promotion and utilization of this technology in cities, let alone experimental research, resulting in the formation of a large number of feces in the city. Any tr...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a biogasification technology used in urban concentrated residential areas with feces as the main raw material to solve the problems of resource waste and urban pollution.

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