Integrated distributed biological filter system for rural sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, in particular to an integrated distributed rural sewage treatment biological filter system which comprises a separation unit, a biological filter bin, a purification bin, a reclaimed water bin and a sludge bin. The output end of the separation unit is respectively communicated with the input ends of the biological filter bin and the reclaimed water bin, the output end of the biological filter bin is respectively communicated with the input ends of the sludge bin and the purification bin, and the output end of the purification bin is communicated with the input end of the reclaimed water bin. According to the sewage treatment device, organic matters, nitrogen, phosphorus and the like in sewage can be effectively removed in a layer-by-layer filtering mode, the amount of generated sludge is small, reclaimed water generated after filtering is good in quality, and therefore the sewage treatment device can be conveniently used by decentralized rural families, the purification efficiency of the device can be improved by separately purifying liquid dung and clean domestic sewage, and the sewage treatment device is suitable for popularization and application. The load of a filtering mechanism in the device is reduced, and the device is an integral buried device and does not need complicated mounting steps, so that the popularization and the use of decentralized rural domestic sewage treatment are facilitated.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an integrated decentralized biological filter system for rural sewage treatment. Background technique [0002] Environmental pollution caused by rural domestic sewage is not only a potential safety hazard in rural water sources, but also aggravates the crisis of freshwater resources, making farmland irrigation not effectively guaranteed, and jeopardizing the survival and development of farmers. Therefore, strengthening the construction of rural domestic sewage collection, treatment and resource utilization facilities, avoiding the pollution of rural water, soil and agricultural products caused by the direct discharge of domestic sewage, and ensuring the safety of rural water sources and the physical and mental health of farmers are the key to strengthening infrastructure in the construction of new rural areas. The construction and recommendation of the important contents...

AI Technical Summary

Problems solved by technology

Rural domestic sewage can be divided into feces and other sewage with high nitrogen and phosphorus content and relatively clean domestic sewage, such as washing water and vegetable washing water, etc. Wastewater with high nitrogen and phosphorus content such as manure needs to be filtered through multiple filtration processes Purification treatment, while relatively clean domestic sewage can produce high-quality reclaimed water only through simple filtration. The existing rural domestic sewage treatment devices mix the two together for purification treatment, which will reduce the cost of the device. The overall purification efficiency will increase the burden on the filter mechanism, and the quality of the reclaimed water produced in the end is low; in addition, the rural population lives scattered and the amount of domestic sewage produced is small, and it is difficult to collect it uniformly. If a unified treatment device is to be established, then The investment is large, and due to the small scale of pollution, it is not convenient to set up professionals for guarding and operation management

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