Power-free aerobic biological treatment method for rural domestic sewage

Abstract

The invention discloses a power-free aerobic biological treatment method for rural domestic sewage, belongs to sewage treatment (C02F), and mainly aims to solve the problems of large civil engineering quantity, high investment cost, huge aerobic aeration energy consumption and the like existing in the conventional domestic sewage treatment process. According to the technology, a power-free aerobic air channel comprehensive treatment system is invented by using the advantage of rich mosses and bamboo for weaving in rural areas. The method comprises the following steps: introducing sewage into a water distribution groove through a water inlet branch tube valve, and uniformly distributing the sewage at the bottom of the water distribution groove to complete primary natural aeration; introducing the sewage into an upper layer moss filling area, a middle layer moss filling area and a lower layer moss filling area of a bamboo basket in the water distribution groove in a drip irritation way, performing automatic oxygen aeration by using the power-free aerobic air channel comprehensive treatment system to complete secondary natural aeration, and gradually purifying the sewage under the actions of filtration, adsorption, degradation and the like of the mosses and microorganisms. The system has the advantages of no need of manual aeration, no power consumption, no need of building complex buildings, small engineering quantity, no equipment investment, easiness and convenience in operation and capability of realizing unmanned operation, and is suitable for treatment of medium and low-concentration domestic sewage in rural areas.

Description

(1) Technical field: [0001] The invention relates to a rural domestic sewage treatment technology, which is especially suitable for centralized treatment of rural medium and low-concentration domestic sewage, and is also suitable for advanced treatment of rural breeding sewage and domestic sewage in small towns, belonging to the sewage treatment category (C02F) . (two) background technology: [0002] Due to reasons such as economy, technology, and operating costs, it is difficult to promote the existing conventional domestic sewage treatment technology in remote and scattered rural areas such as hills and mountainous areas. Such as: traditional activated sludge method, A 2 / O method, CASS process, etc., have the following defects: (1) the amount of civil engineering is large, the floor area is large, the one-time investment cost is high, the operation management is complicated, and the quality requirements for operating technicians are high; (2) the above-mentioned conventi...

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Problems solved by technology

[0003] The method for the unpowered aerobic biological treatment of rural domestic sewage proposed by the present invention mainly solves the problems of large amount of civil works, high investment cost and huge energy consumption of aerobic aeration in the above-mentioned traditional domestic sewage treatment process. Taking advantage of the abundant natural moss and bamboo weaving in the countryside, a combined comprehensive treatment system formed by an unpowered aerobic air duct is invented to automatically oxygenate, so as to effectively treat medium and low concentration rural domestic sewage

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