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

A septic tank and separation technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, anaerobic digestion treatment, etc., can solve the adverse effects of manure reuse on human health and inactivation of pathogenic microorganisms Thorough, incomplete fermentation of feces and other problems, to achieve the effect of eliminating cross-flow of sewage, improving safety and convenience, and occupying a small area

Active Publication Date: 2020-01-10
CHONGQING ACAD OF AGRI SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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, et

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The rural black water and gray water separation septic tank includes a regulating tank 1, a clean water tank 6, a constructed wetland-fuel cell treatment system 5 and at least two levels of septic tanks connected in sequence, wherein the regulating tank 1 is connected to the first level of septic tanks. The pools are adjacent, and the black water and gray water enter the first-stage septic tank and regulating tank 1 respectively through the control of the black-ash water separator. The upper end of the first-stage septic tank is provided with an overflow port, and the first-stage septic tank The clear water in the pond overflows to the septic tank of the second level, and by analogy, the water of the septic tank of the last level overflows to the clear water pool 6.

[0036] Black water is mainly water from toilets and squatting pans, while gray water is water from washbasins and floor drains.

[0037] figure 1 Among them, the rural black water and gray water separatio...

Embodiment 2

[0047] Preparation of hydrothermal charcoal from bovine biogas residue: The raw material of biogas residue is taken from a dairy farm with a well-run biogas project in Banan District, Chongqing City, and coarse particles are removed. Take 15g of cow marsh residue and place it in a polytetrafluoroethylene-lined autoclave, add 80mL of deionized water, and stir for 30min to make it soak. Microwave heating under the conditions of 2.0Mpa, 2.5Mpa and 3.0Mpa respectively (the power is 400W, and the heating temperature is about 193°C). After carbonization for 2 hours, take it out and cool it to room temperature, separate the black precipitate, wash it with deionized water until it is neutral, and freeze it. Dry and grind for later use. The samples prepared at different temperatures were denoted as HTC1, HTC2 and HTC3, respectively.

[0048] Fe 3 o 4 Preparation of modified bovine biogas residue hydrothermal charcoal: The modified hydrothermal charcoal was prepared by a one-step met...

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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...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/30C02F3/28
CPCC02F3/301C02F3/32C02F3/286
Inventor 张凯李萍高立洪蒋滔王冰刘科韦秀丽高冬梅吴兆娟战博毕茹
Owner CHONGQING ACAD OF AGRI SCI
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