Ecological combined treatment method and device for rural distributed sewage

Abstract

The invention discloses an ecological combined treatment method and device for rural distributed sewage. The method comprises the steps of A) rural sewage collection and pretreatment; B) treatment by a biological filter; C) treatment by an artificial wetland and a stabilization pond; D) ecological landscape configuration. The device is characterized in that a main water inlet pipeline is respectively connected with a lattice pool and a regulation pool, the regulation pool is connected with a horizontal flow biological filter through a water distribution pipe, the horizontal flow biological filter is connected with a vertical flow biological filter through a filter screen-water distribution pipe, the vertical flow biological filter is connected with a first-level artificial wetland via a perforated water collection pipe which is horizontally arranged, the first-level artificial wetland is connected with a second-level artificial wetland through an overflow weir, the second-level artificial wetland is connected with the stabilization pond through a straight flow water drain pipe, and a main water drain pipe is arranged at the tail end of the stabilization pond. According to the method, energy consumption is not required, the operation and the maintenance are simple and convenient, and the method further has the advantages of landscape effect, economic benefits, simple structure and low investment; high-efficient purification of rural distributed domestic and farming sewage is realized, and the removal rate of nitrogen, phosphorus, COD and the like in sewage is above 80% after treatment.

Description

technical field [0001] The invention belongs to the technical field of sewage ecological treatment. More specifically, it relates to an ecological combination treatment method of rural decentralized sewage, and also relates to a device for ecological combination treatment of rural decentralized sewage, which is suitable for rural decentralized living and breeding sewage treatment, and can improve the rural ecological environment. Especially in the southern hilly area, the natural elevation difference of the terrain can be used, and the whole sewage treatment device can realize zero-power operation, which is convenient for rural popularization and application. Background technique [0002] In recent years, with the rapid development of my country's rural economy and the continuous advancement of urbanization, the discharge of rural decentralized living and aquaculture sewage has continued to increase, which has caused serious pollution to surrounding natural water bodies and ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an ecological combined treatment method for rural decentralized sewage. The method aims at environmental problems such as the current low level of rural decentralized sewage treatment and increasingly serious agricultural non-point source pollution. pond, regulating pond, horizontal flow biofilter, vertical flow biofilter, two-stage surface flow artificial wetland, and stabilization pond to build an ecological combined treatment system for rural decentralized sewage, to realize effective treatment of rural decentralized domestic and aquaculture sewage, and to realize Sewage purification and safe discharge

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