Domestic sewage treatment system and process

A domestic sewage and treatment system technology, applied in the direction of water/sewage treatment, neutralized water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of high pollution, poor purification effect, low efficiency of domestic sewage, etc., to achieve Effects of increasing speed, shortening service life, reducing COD and BOD

Inactive Publication Date: 2018-05-18
刘芸孚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scientific sewage treatment system can maximize the recycling of water resources. The traditional technology for domestic sewage treatment is inefficient, the purification effect is poor, and the pollution generated is too high

Method used

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  • Domestic sewage treatment system and process
  • Domestic sewage treatment system and process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 with figure 2 As shown, a domestic sewage treatment system includes a sewage tank 10, an acid-base adjustment tank 20, an anaerobic decontamination tank 30, an aerobic decontamination tank 40, a backwash tank 50 and a water storage tank 60 connected in sequence through a water pipe 11; The sewage pool 10 is sequentially provided with a sewage flow velocity buffer assembly, an activated carbon layer 12, a mesoporous inorganic ceramic membrane filter layer 13, a microporous inorganic ceramic membrane filter layer 14 and a ceramic nanofiltration membrane filter layer 15 along the flow direction of the sewage. The water pipe 11 between the sewage pool 10 and the acid-base adjustment pool 20 is provided with a first one-way pipe 16 leading to the water inlet of the sewage pool 10, and the water outlet of the sewage pool 10 is provided with a turbidity sensor 17; The water outlet of the acid-base adjustment pool 20 is provided with a pH sensor 21, and betwe...

Embodiment 2

[0068] This embodiment is roughly the same as Embodiment 1, the difference is:

[0069] Both the lower buffer plate 19a and the upper buffer plate 19b are inclined toward the water inlet of the sewage tank 10, and the inclination angle is 60°.

[0070] The aperture of the membrane in the mesoporous inorganic ceramic membrane filter layer 13 is 40nm, the aperture of the membrane in the microporous inorganic ceramic membrane filter layer 14 is 20nm, and the aperture of the membrane in the ceramic nanofiltration membrane filter layer 15 is 10nm; The pore size of the ultrafiltration membrane 61 is 2nm.

[0071] The flocculant includes the following components by weight: 30 parts of polyacrylamide solution, 20 parts of polyaluminum chloride solution, 15 parts of BLINK magnetic powder, 2 parts of ferrous hydroxide, and 2 parts of diatomaceous earth.

[0072] The molecular weight of the polyacrylic acid solution is 3 million.

[0073] The deodorant comprises the following component...

Embodiment 3

[0075] This embodiment is roughly the same as Embodiment 1, the difference is:

[0076] Both the lower buffer plate 19a and the upper buffer plate 19b are inclined toward the water inlet of the sewage tank 10, and the inclination angle is 70°.

[0077] The aperture of the membrane in the mesoporous inorganic ceramic membrane filter layer 13 is 70nm, the aperture of the membrane in the microporous inorganic ceramic membrane filter layer 14 is 40nm, and the aperture of the membrane in the ceramic nanofiltration membrane filter layer 15 is 20nm; The pore diameter of the ultrafiltration membrane 61 is 10 nm.

[0078] The flocculant includes the following components by weight: 60 parts of polyacrylamide solution, 40 parts of polyaluminum chloride solution, 20 parts of BLINK magnetic powder, 10 parts of ferrous hydroxide, and 10 parts of diatomaceous earth.

[0079] The molecular weight of the polyacrylic acid solution is 22 million.

[0080] The deodorant comprises the following ...

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Abstract

The invention discloses a domestic sewage treatment system. The system comprises a sewage tank, an acid-base adjusting tank, an anaerobic decontamination tank, an aerobic decontamination tank, a converse cleaning tank and a water storage tank which are connected in sequence through water pipes. The invention also discloses a domestic sewage treatment process. The process comprises the following steps: adding a flocculating agent and a deodorant into domestic sewage, removing dregs in the domestic sewage and carrying out filtering, detecting the turbidity of domestic sewage, aerating the domestic sewage for 8 minutes for carrying out adjustment of pH value, then carrying out standing for precipitation for 30 minutes, detecting the pH value of the domestic sewage, aerating the domestic sewage for 4 minutes for carrying out anaerobic decontamination, then carrying out standing for precipitation 15 minutes, aerating the domestic sewage for 12 minutes for carrying out aerobic decontamination, then carrying out standing for 30 minutes, repeating the steps of anaerobic decontamination and aerobic decontamination for at least one time, carrying out recycling treatment in the reverse cleaning tank and the water storage tank, and storing the treated domestic sewage in a water storage tank. The domestic sewage treatment system and process provided by the invention have high sewage treatment efficiency and good purification effect.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treatment system and a process thereof. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people. The composition of domestic sewage is relatively fixed, mainly containing organic matter such as carbohydrates, proteins, amino acids, fats, etc., which is more suitable for the growth of bacteria and becomes a place for the survival and reproduction of bacteria and viruses. The scientific sewage treatment system can maximize the recycling of water resources. The traditional tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/442C02F1/444C02F1/5236C02F1/56C02F1/66C02F3/30C02F9/00C02F2001/007C02F2303/02
Inventor 刘芸孚
Owner 刘芸孚
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