Centralized treatment system for sewage in rural area

Abstract

The invention relates to a centralized treatment system for sewage in a rural area. The centralized treatment system comprises an equalizing basin, an upflow anaerobic reactor, a multi-layer aerobic movable filter tower, a crop wetland system and a methane collecting and utilizing system, wherein the equalizing basin is arranged underground; the heights of the upflow anaerobic reactor, the multi-layer aerobic movable filter tower and the crop wetland system gradually decreases; the equalizing basin is communicated with each sewage discharging hole by a sewage pipe; the equalizing basin is communicated with the upflow anaerobic reactor by the sewage pipe, and a water pump is arranged between the equalizing basin and the upflow anaerobic reactor; the upflow anaerobic reactor is communicatedwith the multi-layer aerobic movable filter tower by the sewage pipe; the multi-layer aerobic movable filter tower is communicated to the crop wetland system by the sewage pipe; the upflow anaerobic reactor and the multi-layer aerobic movable filter tower are communicated to the crop wetland system by a sludge pipe; and the upflow anaerobic reactor is communicated with the methane collecting and utilizing system by a methane pipe. According to the centralized treatment system provided by the invention, energy saving and environment protection are realized, and the production value of agriculture and forestry is increased; and the centralized treatment system is simple in structure and convenient to mount and operate and is capable of reducing the burden of farmers, decreasing the occupiedarea and solving the problem on the pollution caused by the sewage in the rural area.

Description

technical field [0001] The invention relates to the technical field of sewage biological treatment, in particular to a rural sewage centralized treatment system. Background technique [0002] With the rapid development of the economy, the rural areas are getting richer, especially in the economically developed rural areas in the east and southeast of my country. Emissions also increased sharply. Due to the lag in the construction of sewage treatment facilities, a large amount of untreated domestic sewage is directly discharged into small rivers and ponds in rural areas, and finally into receiving water bodies such as lakes and rivers, which aggravates the eutrophication of the water environment and collects rural domestic sewage Processing is imminent. The current rural sewage treatment mainly has the following problems: [0003] 1. The sewage volume of each household is small, and the gas production of the supporting biogas tank is small, which cannot meet the living need...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in order to solve the above technical problems, the present invention provides a kind of energy saving and environmental protection, and increase the output value of agriculture and forestry; simple structure, convenient installation and operation, can reduce the burden on farmers, reduce land occupation, and can solve rural sewage Rural Sewage Centralized Treatment System for Pollution Problems

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