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Rural domestic sewage treatment system and method

A sewage treatment system and domestic sewage technology, applied in the field of rural domestic sewage treatment system, can solve the problems that the dissolved oxygen in the anoxic section is difficult to precisely control, unfavorable for the promotion of domestic sewage treatment, and the high concentration of ammonia nitrogen in the effluent. The effect of reducing the cost of sludge treatment and reducing the amount of sludge produced

Pending Publication Date: 2020-04-28
NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent number is: CN201910158527.X, and the patent name is an integrated equipment for MBR double-membrane process sewage treatment. It has the advantages of standard modular equipment and convenient installation. It is difficult to accurately control the dissolved oxygen in the anoxic section of decentralized rural sewage treatment plants, which often causes the problem of high ammonia nitrogen concentration in the effluent
In addition, the operation and maintenance of domestic sewage treatment equipment in rural areas is difficult, and the professional requirements are high, which is not conducive to the promotion of domestic sewage treatment in rural areas

Method used

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  • Rural domestic sewage treatment system and method
  • Rural domestic sewage treatment system and method

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Embodiment 1

[0031] Embodiment 1: a rural domestic sewage treatment system, including a regulating pond and an integrated sewage treatment system; the integrated sewage treatment system includes an anaerobic pond, an adjustable aerobic pond, a phosphorus removal sedimentation pond and an operation room; the described The regulating tank is equipped with a water inlet. Sewage first enters the regulating tank to adjust the water volume. It is introduced into the integrated sewage treatment system through the lift pump, enters the anaerobic tank through the water inlet pipe, and then flows through the adjustable aerobic tank, phosphorus removal sedimentation tank and The ultraviolet sterilizer finally flows out from the water outlet; the anaerobic pool and the anoxic pool are equipped with fixed packing, and the aerobic pool is equipped with suspended packing. According to the influent water quality and effluent demand, two process options of AO and A2O are provided, and the aeration volume of...

Embodiment 2

[0032] Embodiment 2: a kind of rural domestic sewage treatment method using rural domestic sewage treatment system comprises the following steps:

[0033] (1) Regulating stage: the sewage enters the regulating tank, adjusts the water volume, and then enters the integrated sewage treatment system through the lifting pump;

[0034] (2) Anaerobic stage: After passing through the regulating tank, the sewage enters the anaerobic tank for hydrolysis and acidification;

[0035] (3) Adjustable aerobic stage: the effluent from the anaerobic pool enters the adjustable aerobic pool through the flow hole, and the adjustable aerobic pool includes anoxic pool and aerobic pool, which can be realized by adjusting the aerator at the bottom of the aerobic pool The AO process or A2O process makes the organic matter in the sewage degraded by aerobic microorganisms; when the AO process is adopted, the frequency conversion control can adjust the intermittent aeration of the aerator at the bottom of...

Embodiment 3

[0037] Embodiment 3: A rural domestic sewage treatment system, including a regulating tank and an integrated sewage treatment system; the rural domestic sewage treatment system also includes a remote monitoring platform, and the control cabinet in the operation room is connected to equipment such as fans, pumps, and flow meters. Control, and then through the Internet of Things interface, remote monitoring and joint control equipment operation can be realized, unmanned operation and maintenance can be realized, and real-time water quality data and equipment operation status can be obtained remotely from the platform. Under the environment, the return pump can be controlled through the monitoring platform and the control cabinet to increase the return flow, so that the effluent can meet the requirements, which is beneficial to the operation, maintenance and management of sewage treatment facilities in rural areas.

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Abstract

The invention discloses a rural domestic sewage treatment system and method. AO and A2O process selections can be provided according to inlet water quality conditions and outlet water requirements, and the aeration rate of an aerator at the bottom of an adjustable aerobic tank is changed through frequency conversion control, so that the adjustable aerobic tank is converted into a combination of ananoxic tank and an aerobic tank, and process conversion is realized. Fixed fillers are arranged in the anaerobic tank and the anoxic tank, and suspended fillers are arranged in the aerobic tank. Therural domestic sewage treatment system is small in occupied area, small in civil construction work amount, short in period, low in investment, easy and convenient to operate and maintain, low in professional requirement degree, capable of remotely monitoring water quality and controlling equipment operation, capable of achieving unmanned operation and maintenance and suitable for being used and popularized in rural area sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of domestic sewage treatment, and in particular relates to a treatment system and method for rural domestic sewage. Background technique [0002] According to the "2017 China Urban and Rural Construction Statistical Yearbook" data, in 2017, the sewage treatment rate of municipal public facilities in townships nationwide was only 17.19%, and there were 2,592 townships in the country that treated domestic sewage, accounting for only 25.13%. From this point of view, the current domestic sewage treatment rate in rural areas across the country is low and the treatment facilities are backward. [0003] Due to the differences in industrial structure and living habits between rural and urban areas, there is a big difference between the domestic sewage of the two. Rural domestic sewage has the characteristics of large fluctuations in water volume, unstable water quality, small daily treatment scale of a single villag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16C02F101/10
CPCC02F9/00C02F3/30C02F1/32C02F2303/04C02F1/52C02F2101/16C02F2101/105Y02W10/10
Inventor 刘军刘杰王瑾瑾戴昕朱菁宫建瑞
Owner NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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