Landscape type village sewage collecting and treating system

Abstract

The present invention discloses a landscape type village sewage collecting and treating system. The system comprises a village-surrounding landscape riverway and a bio-trickling filter treating unit; wherein village domestic sewage and livestock and poultry breeding wastewater drain into a landscape riverway sewage canal, and then flow together to the bio-trickling filter treating unit and undergo a biochemical reaction, and after the reaction, the sewage is discharged into a main canal of the landscape riverway; and cross sections of the main canal of the landscape riverway is provided with a multi-stepped shape, and each step is planted respectively with submerged plants and emerged plants that have a purification effect of contaminations. According to the system provided by the present invention, all links of generating, discharging, collecting, and treating of regional village comprehensive pollution are incorporated into a pollution control system, the farmer domestic sewage and the livestock and poultry breeding wastewater with a high concentration are treated by a sewage intensifying treating facility, slightly-polluted water of rainfall runoff that carries village surface pollution is treated by the village-surrounding landscape riverway, and an operating performance of the sewage treating facility is effectively optimized by the combination of the two, and meanwhile a liquidity of the village-surrounding landscape riverway is improved, and a preferable environmental benefit and a preferable ecological benefit are achieved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a landscape-style village sewage collection and treatment system. Background technique [0002] my country is a large agricultural country, and the rural area accounts for about 60% of the total land area. At present, the pollution generated in cities and towns has been basically controlled. Rain and sewage in urban areas are diverted. Urban sewage enters the sewage pipe network for treatment through urban centralized sewage treatment plants, and rainwater enters the rainwater pipe network for reuse. The pollution generated by rural villages is also gradually being paid attention to. The common way to treat village sewage is to use decentralized sewage treatment facilities, such as soil purification tanks, biological aerated filters, contact oxidation ponds, and oxidation ponds. [0003] However, there are still many problems in rural pollution control, mainly including ...

AI Technical Summary

Problems solved by technology

However, in reality, some livestock manure and rural domestic sewage often enter the sewage collection channels at the same time, and the water volume and quality of sewage have changed, which will affect the efficiency of sewage treatment.

[0006] (3) Many farmers have the habit of raising livestock and poultry. Livestock manure and urine are often discharged together with domestic sewage, and are often scattered in the village and surrounding areas. pollution from small-scale free-range livestock and poultry farming has been neglected

[0007] (4) The rural economic conditions are relatively poor, the construction cost of sewage collection pipelines is relatively high, and remote and backward rural areas are difficult to bear financially

[0008] (5) For rural areas with poor geological conditions, such as subsidence areas and mountainous areas, it is difficult to lay sewage collection pipes, which restricts the pollution control of the villages

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