Wind driven small sewage treatment device

Abstract

The invention discloses a wind driven small sewage treatment device which comprises an air supply device and an integrated biological treatment device. A wind turbine and an air flow limiting pressure reducer are combined with an integrated biological treatment device consisting of a two-section biological mixing bed and a sedimentation tank; the renewable wind energy is used as the energy for water circulation and oxygenation; the microorganisms, substrates and dissolved oxygen in sewage are in sufficient contact and mixed in the biological mixing bed internally provided with a suspension filler; and the microorganisms adsorb, oxidize and decompose organisms in the sewage so as to realize sewage purification. The wind driven small sewage treatment device disclosed by the invention reasonably utilizes wind energy, does not consume electric energy, meets the original intention of protecting ecological environment of environment-friendly facilities as well as the needs for energy thereof, obviously saves energy and is environment-friendly in the field of small-scale sewage treatment, and is suitable for railway small and medium-sized stations and other corresponding stations with relatively rich wind resources.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to an aerobic biochemical sewage treatment device utilizing wind energy for air supply. Background technique [0002] For urban areas, factories and mines, the amount of sewage discharge is large and the discharge points are concentrated, so it is easier to realize centralized sewage treatment. However, the sewage discharge points of stations along the railway are scattered and numerous, and the sewage discharge volume is small, which adds difficulties to sewage treatment. If such pollution sources cannot be effectively controlled, they will also have a relatively large impact on the natural environment. Therefore, more and more attention has been paid to the sewage treatment of stations along the railway in the construction of railway projects. [0003] At present, small-scale sewage treatment devices with aerobic biochemical process are generally installed in the stations along the ra...

AI Technical Summary

Problems solved by technology

However, the energy consumption of the existing equipment is relatively high, and the power consumption of sewage lifting and blast aeration accounts for about 60% of the operating cost. In addition, the biochemical pool of the sewage treatment equipment cannot well adapt to the impact caused by the change of sewage water volume and water quality in different seasons load, the utilization rate of blast aeration and oxygenation is also limited, and it is difficult to provide the best biochemical reaction conditions for microbial degradation of organic matter

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