Artificial suspended wetland structure for rural sewage river-entering draining exit and sewage treatment method

Abstract

The invention discloses an artificial suspended wetland structure for a rural sewage river-entering draining exit and a sewage treatment method. An artificial wetland is formed by splicing a pluralityof floating unit bodies, the floating unit bodies are spliced into a whole through meshing of tooth buckles of side walls and a bottom plate, cavities communicated with the atmosphere are formed in the upper surface of the bottom plate of the floating unit bodies and filled with soil, a fixed planting net is arranged on the surface layer of the cavity, purification aquatic plants are planted in the soil, and the constructed wetland is provided with a sewage channel. The technical scheme has the advantages of being flexible in form, small in occupied space, high in terrain adaptability, capable of being prefabricated in a factory, free of excavation and filling, easy and convenient to construct, short in construction period, suitable for water level changes, attractive, good in treatment effect and the like.

Description

technical field [0001] The invention belongs to the technical fields of water conservancy and hydropower engineering and ecological environment, and in particular relates to an artificial suspended wetland structure and a sewage treatment method for rural sewage outlets entering rivers. Background technique [0002] Rural domestic sewage mainly comes from farm toilet flushing water, kitchen washing water, washing machine drainage, shower drainage and other drainage. Rural sewage mainly contains a large amount of organic matter and inorganic salts such as nitrogen and phosphorus. The current treatment measures are mainly that the domestic sewage first enters the anaerobic digester (ie septic tank), and the suspended matter in the sewage settles down to become sludge. The mud is naturally fermented for a certain period of time, and the organic matter is degraded. The upper clear water part passes through the constructed wetland, and uses the dilution and degradation of multi-...

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Problems solved by technology

[0008] The purpose of the present invention is to provide an artificial suspended wetland structure that overcomes a series of problems caused by existing constructed wetlands, such as land shortage, easy to be submerged and washed away, long construction period, and high cost of excavation and filling caused by the construction of existing artificial wetlands or river bank slope protection. It can be suspended on the water surface, flexible in form, elegant in appearance, easy in construction, can be prefabricated in factories, and has the advantages of short construction period. It can also make the purification effect better by controlling the length of the sewage flow path. Plant varieties are matched to achieve the most reasonable sewage discharge effect

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