Oligodynamic sewage treatment system and method

Abstract

The invention relates to an oligodynamic sewage treatment system and a method, which belongs to the technical field of organic waste water treatment. The oligodynamic sewage treatment system comprises a sewage collection tank, a precipitation tank, a regulation tank and a fan blower. The invention is characterized in that the oligodynamic sewage treatment system also comprises a sand biological filter tank, wherein the sewage collection tank, the precipitation tank, the regulation tank and the sand biological filter tank are sequentially communicated, the sand biological filter tank consists of a lower pebble layer, a yellow sand layer, an upper pebble layer and a thick soil layer, the lower pebble layer is arranged at the bottom of the sand biological filter tank, the yellow sand layer is arranged on the lower pebble layer, the upper pebble layer is arranged on the yellow sand layer, the thick soil layer is arranged on the upper pebble layer, aeration pipes are paved in the lower pebble layer, the aeration pipes are connected with the fan blower and a water outlet, sewage pipes are paved in the upper pebble layer, and the sewage pipes are communicated with the regulation tank. The invention has the advantages of low operation cost, high efficiency, low construction cost, strong applicability, high sewage processing efficiency, small area of occupied ground and ground resource saving.

Description

technical field

[0001] The invention relates to a micro-dynamic sewage treatment system and method, belonging to the technical field of organic waste water treatment. Background technique

[0002] With the development of China's new rural construction, the accommodation conditions and breeding mode of rural residents have undergone tremendous changes. Many rural residents have concentrated in buildings, and the breeding mode has also changed from scattered farming to large-scale farming. Residents' accommodation conditions have improved. At the same time as the breeding mode has changed, rural domestic sewage and aquaculture sewage have changed from non-point source discharge to point source discharge. Due to the lack of centralized sewage treatment pipe networks and treatment facilities in rural areas, rural sewage overflows, ditches and rivers are full of sewage, and many sewage is not After treatment, it will directly flow into the farmland, seriously destroying the livin...

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