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Semi-fixed bed in-situ domestic sewage purification device and application

A kind of domestic sewage, semi-fixed technology, applied in water/sewage multi-stage treatment, light water/sewage treatment, water/sludge/sewage treatment, etc. The effect of small area, cost reduction and energy consumption reduction

Pending Publication Date: 2020-07-03
NANKAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for rural areas with scattered households and complex terrain, the cost of infrastructure construction (pipe network construction) in the early stage of centralized treatment is extremely high, which seriously restricts rural sewage treatment and disposal

Method used

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  • Semi-fixed bed in-situ domestic sewage purification device and application

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Experimental program
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Effect test

Embodiment 2

[0028] An application of a device for in-situ purification of domestic sewage with a semi-fixed bed, which uses continuous water inflow and undergoes facultative anaerobic and aerobic treatment to achieve the purpose of sewage purification. The steps are as follows:

[0029] 1) Transport the domestic sewage into the purification device through the pipeline, and start the device;

[0030] 2) The sewage flowing into the device is simply settled in the sedimentation tank and then overflows into the regulating tank. The residence time in the regulating tank is 6h, and the water temperature is maintained at 10°C;

[0031] 3) The sewage regulated by the regulating tank flows into the facultative anaerobic tank from the bottom through the water-conducting partition. There are partitions in the facultative anaerobic tank, and the filler loaded with facultative anaerobic bacteria floats between the partitions. After the filler of facultative anaerobic bacteria is treated, it enters the...

Embodiment 3

[0038] An application of a device for in-situ purification of domestic sewage with a semi-fixed bed, which uses continuous water inflow and undergoes facultative anaerobic and aerobic treatment to achieve the purpose of sewage purification. The steps are as follows:

[0039] 1) Transport the domestic sewage into the purification device through the pipeline, and start the device;

[0040] 2) The sewage flowing into the device is simply settled in the sedimentation tank and then overflows into the regulating tank. The residence time in the regulating tank is 20h, and the water temperature is maintained at 15°C;

[0041] 3) The sewage regulated by the regulating tank flows into the facultative anaerobic tank from the bottom through the water-conducting partition. There are partitions in the facultative anaerobic tank, and the filler loaded with facultative anaerobic bacteria floats between the partitions. After the filler of facultative anaerobic bacteria is treated, it enters th...

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Abstract

A semi-fixed bed in-situ domestic sewage purification device has an integrated structure and is composed of a water inlet, an adjusting tank, a facultative anaerobic tank, an aerobic tank, a water purification tank and a water outlet, and domestic sewage is purified through a facultative anaerobic treatment and an aerobic treatment. By means of the device, domestic sewage with BOD not higher than250 mg / l, TN not higher than 70 mg / l and SS not higher than 170 mg / l can be purified, and the BOD, TN and SS of purified water are not higher than 20 mg / l, 20 mg / l and 15 mg / l respectively. The in-situ domestic sewage purification device has the advantages of being small in occupied area, high in treatment efficiency, low in energy consumption, low in cost, high in degradation speed, easy to operate, safe and reliable. Through the overflow design, the energy consumption of the device is effectively reduced; the device is dispersed for each farmer, the rural sewage pipeline laying cost can be effectively reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to an in-situ treatment technology for domestic sewage, in particular to a semi-fixed bed in-situ purification device for domestic sewage and its application. Background technique [0002] With the development of the times and the improvement of people's living standards, the pace of urban construction has accelerated, and the people's growing consumer demand and desire for beautiful cities have become stronger and stronger. However, compared with the rapid development of cities, rural infrastructure construction is relatively backward. In particular, the construction of rural sewage pipe network is difficult and expensive, resulting in random discharge of rural sewage, difficult management, serious environmental pollution and breeding of mosquitoes and flies, producing foul-smelling gas, threatening human health. Rural sewage treatment is an important part of my country's sewage treatment industry. Compared with cities and town...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F2001/007C02F1/32C02F3/30C02F2303/04
Inventor 林应超李维尊季鹏杨飞于明言孙青梅
Owner NANKAI UNIV