Rural domestic sewage treatment equipment and treatment method suitable for cold regions

Abstract

The invention relates to rural domestic sewage treatment equipment applicable to cold regions, which comprises an artificial wetland body, and a heat insulation layer is arranged on the outer wall of the artificial wetland body; supports are arranged on the two sides of the top of the constructed wetland body, an arc-shaped heat preservation cover covering the constructed wetland body is arranged on the tops of the supports, the heat preservation cover comprises an arc-shaped fixed heat preservation plate and a plurality of arc-shaped movable heat preservation plates, the two ends of the fixed heat preservation plate are fixedly installed on the supports, and the two ends of the fixed heat preservation plate are fixedly installed on the supports. The two ends of the movable heat preservation plates are in sliding fit with the support, and the fixed heat preservation plate and the multiple movable heat preservation plates are arranged in an overlapped mode. The invention further provides a sewage treatment method. When the temperature of the external environment is low or the wind power is large, all the movable heat preservation plates can slide, so that the movable heat preservation plates and the fixed heat preservation plates form an arc-shaped heat preservation cover in a surrounding mode, and the heat preservation cover covers the constructed wetland body and is isolated from the outside, so that the heat preservation or wind shielding effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a rural domestic sewage treatment equipment and a treatment method suitable for cold areas. Background technique [0002] Rural domestic sewage has the characteristics of scattered discharge, low pollutant concentration and large fluctuation, and small amount of water, but the amount of water is greatly affected by factors such as living habits, seasonal changes and holidays. Rural domestic sewage treatment simply applies the urban domestic sewage treatment model, which often leads to difficulties in operation and maintenance, and even the phenomenon of idle sewage treatment facilities occurs. Therefore, the implementation of rural domestic sewage treatment needs to be adapted to local conditions, and the selection of domestic sewage treatment technologies that meet the rural conditions should give priority to treatment technologies with low operating costs and simple ma...

AI Technical Summary

Problems solved by technology

[0003] The ecological treatment processes adopted by the existing rural domestic sewage treatment technologies are mostly oxidation ponds, biological ponds, artificial wetlands, soil infiltration, etc. For details, please refer to CN201648119U-composite artificial wetland sewage treatment system, CN208038263U-a composite sewage treatment system type constructed wetland system, CN201710588924-primary battery type constructed wetland series electrolytic cell type constructed wetland device, etc., and CN202111281600.6 a kind of rural domestic sewage anyway rhythmic treatment system, etc. The sewage treated by these equipment can meet the discharge standard and can be used in large Some rural areas, however, some rural areas have a certain period of severe cold weather, and the low temperature may cause the death of plants in the constructed wetlands. For this reason, some constructed wetlands have been equipped with greenhouses, but the conventional greenhouses are disposable greenhouses, which are easy to cause waste and cannot be used. It is convenient to open and close, and the opening of the shed cannot be adjusted according to the outside temperature

In addition, when the artificial wetland filler is blocked, it is necessary to replace the filler and plants in a large area, which affects the normal operation of the system and the maintenance cost is high

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