Unpowered black water and gray water separation septic tank for rural areas

Abstract

The invention discloses an unpowered black water and gray water separation septic tank for rural areas. The separation septic tank comprises a regulating tank, a clear water tank, a constructed wetland-fuel cell treatment system and at least two stages of septic tanks which are connected in sequence, wherein the regulating tank is adjacent to the first-stage septic tank, black water and gray waterare controlled by a black water and gray water separator to respectively enter the first-stage septic tank and the regulating tank, an overflow port is arranged at the upper end of the first-stage septic tank, clear water overflows to the second-stage septic tank, and so on, water of the last-stage septic tank overflows to the clear water tank; a water outlet is arranged at the upper part of theconstructed wetland-fuel cell treatment system and is connected with the clear water tank; and a water extraction device is arranged above the clear water tank. Orderly treatment of toilet feces and domestic sewage is achieved, the phenomena of sewage cross flow, stinking air rushing to the sky, mosquito and fly grouping in summer and the like are eradicated, and the rural human settlement environment is effectively improved. And effluent of the separation septic tank can be used as farmyard manure.

Description

technical field [0001] The invention relates to a rural septic tank for separating black water and gray water without power, and belongs to the field of rural domestic sewage treatment equipment. Background technique [0002] Different from the standard discharge of urban domestic sewage, domestic sewage in rural areas should mainly meet the reuse standard. At present, in some rural areas, three-compartment septic tanks are used as the final treatment unit for black water and gray water. Currently, three-compartment septic tanks are generally used for toilet improvement in rural areas. This type of septic tank has not realized toilet manure and domestic sewage. The separation and treatment of domestic sewage, detergent, etc. in the septic tank will inhibit the anaerobic microorganisms in the septic tank, resulting in incomplete fermentation of feces and incomplete inactivation of pathogenic microorganisms, which is harmful to human health and waste reuse. Influence. Moreov...

AI Technical Summary

Problems solved by technology

At present, in some rural areas, three-compartment septic tanks are used as the final treatment unit for black water and gray water. Currently, three-compartment septic tanks are generally used for toilet improvement in rural areas. This type of septic tank has not realized toilet manure and domestic sewage. The separation and treatment of domestic sewage, detergent, etc., will inhibit the anaerobic microorganisms in the septic tank, resulting in incomplete fermentation of feces and incomplete inactivation of pathogenic microorganisms, which is harmful to human health and waste reuse. influences

Moreover, the effluent cannot meet the water quality standard for farmland irrigation (GB5084-2005), and it is difficult to reuse the effluent

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