A separate composite three-dimensional constructed wetland system and sewage treatment method

Abstract

The invention provides a separation type combined stereo constructed wetland system and a sewage processing method. The system comprises a wetland bed body with water separation function, and a stable surface flow pool and a subsurface flow pool which are constructed in the internal space of the wetland bed body; water-purification plants are grown on the surface flow pool, and also the stable surface flow pool is provided with a water inlet device; the stable surface flow pool and the subsurface flow pool are in connection via a reclaimed-water collection distribution device; and the subsurface flow pool is provided with a clean-water discharge device. A separation plate is horizontally arranged in the wetland body, and divides the space into an upper part and a lower part. The upper part is the stable surface flow pool, and the lower part is the subsurface flow pool. The stable surface flow pool and the subsurface flow pool are respectively filled with a stable surface flow pool matrix and a subsurface flow pool matrix, so that the stable surface flow pool and the subsurface flow pool are respectively formed. The provided sewage processing method employs the above wetland for purifying sewage. The advantages of small land occupation area, good discharged water quality and the like are provided.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a separated composite three-dimensional constructed wetland system and a sewage treatment method. Background technique [0002] In the process of urban development in my country, the municipal sewage treatment system collects the sewage within the designated sewage discharge range, and transports it to the sewage treatment plant for centralized treatment by the urban sewage pipe network. However, the development of relatively remote areas such as rural areas in my country is still relatively lagging behind. At present, the treatment of domestic sewage in these places has not been well resolved. However, it will cost a lot of money to collect all the domestic sewage in these places to sewage treatment plants. Construction costs of sewer pipes. At the same time, today's society is facing the problem of water shortage, and the recycling and reuse of sewage will ...

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies existing in the prior art, the object of the present invention is to provide a separated composite three-dimensional constructed wetland system and a sewage treatment method that has a small footprint and is not easy to clog, which can effectively solve the problems of low organic load, low The underground infiltration system may pollute the groundwater body, and it also solves the problems of the artificial wetland covering a large area, easy to block, short operation cycle and unstable operation

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