Rural sewage treatment system based on reconstruction of three-grid septic tank

Abstract

The invention discloses a rural sewage treatment system based on transformation of a three-grid septic tank, and belongs to the technical field of sewage treatment. Comprising a primary fermentation tank, a secondary fermentation tank communicated with the primary fermentation tank, a manure storage tank communicated with the secondary fermentation tank, an assembled ecological filter bed communicated with the manure storage tank and a water collection area communicated with the assembled ecological filter bed. The whole system is free of external energy supply, only the filler needs to be replaced during cleaning or the modularized filler needs to be cleaned by villagers, the system is simple in structure, and the long-term operation stability of the system is greatly improved through the design of the modularized filler.

Images