Distributed sewage treatment system and treatment method using the treatment system

A treatment system, decentralized technology, applied in the field of decentralized sewage treatment system, to achieve the effect of reducing organic matter load and pollution

Active Publication Date: 2020-08-14
天津诚信环球节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the demand for organic pollutants and nitrogen and phosphorus advanced treatment technology in the treatment of small flow refractory wastewater, to provide a decentralized sewage treatment system and the use of the treatment system processing method, the system is a 2 Based on the / O process, it is a mobile small integrated sewage treatment equipment that combines two-point water intake, double sludge return flow, bubble-free aeration membrane and special grid form of aerobic tank, which can be used to treat urban drainage pipe network It is difficult to cover the urban fringes and new districts, as well as the vast rural areas and small towns with relatively backward economy. It can also treat some industrial wastewater similar to urban domestic sewage and special urban wastewater such as hospitals and foreign-related hotels.

Method used

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  • Distributed sewage treatment system and treatment method using the treatment system

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Experimental program
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Effect test

Embodiment 2

[0131] The wastewater to be treated is a point source sewage outlet by a river, mainly domestic sewage including some industrial wastewater. The main feature is that the water quality fluctuates greatly. The main pollutant indicators are: COD is 432.5~551.3mg / L, BOD 5 SS is 168.5-236.4mg / L, SS is 151.3-248.5mg / L, total nitrogen is 51.5-90.1mg / L, ammonia nitrogen is 38.9-63.1mg / L, and total phosphorus is 8.6-15.9mg / L.

[0132] Put the domestic wastewater into the regulating tank of the integrated treatment equipment, enter the primary sedimentation tank through the regulating tank, stay for 0.5~1h to remove SS, discharge the sludge from the primary sedimentation tank to the sludge concentration tank every 2~4h, and enter the supernatant The anaerobic tank stays for 1-2 hours for anaerobic phosphorus release, enters the anoxic tank for 1-2 hours for denitrification, and enters the aerobic tank for 6-10 hours to complete the removal of COD, ammonia nitrogen and total phosphorus. P...

Embodiment 3

[0136] The wastewater to be treated is the sewage outlet of a small enterprise. It is mainly domestic sewage including some industrial wastewater. The main feature is high ammonia nitrogen content. The main pollutant indicators are: COD is 312.1~392.3mg / L, BOD 5 SS is 139.8-156.4mg / L, SS is 93.4-105.1mg / L, total nitrogen is 114.6-136.5mg / L, ammonia nitrogen is 89.4-101.4mg / L, and total phosphorus is 7.9-10.2mg / L.

[0137] Put the domestic wastewater into the regulating tank of the integrated treatment equipment, enter the primary sedimentation tank through the regulating tank, stay for 0.5h to remove SS, discharge the sludge from the primary sedimentation tank to the sludge concentration tank every 6 hours, and the supernatant enters the anaerobic tank , stay 0.75h for anaerobic phosphorus release, enter the anoxic pool for 1.25h for denitrification, enter the aerobic pool for 8-10h oxidation to complete the removal of COD, ammonia nitrogen and total phosphorus, part of the eff...

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Abstract

The invention relates to a dispersion-type sewage treatment system. The system comprises a conditioning tank, a primary settling tank, an anaerobic tank, an anoxic tank, an aerobic tank, a secondary settling tank, a sludge collection tank, a sludge concentration tank and a sewage collection tank. The system is a mobile small integrated sewage treatment device based on an A2 / O technology and combination with two-point water inlet, sludge double reflux, a bubble-free aeration membrane and an aerobic cell special sub-grid form, can be used for treatment on urban domestic sewage in the urban fringe and the novel district difficult to cover with an urban drainage pipe network and economic development relatively backward vast rural areas and small towns, treatment on a part of industrial wastewater with similar characteristics to those of urban domestic sewage and treatment on urban special wastewater in hospitals and foreign guesthouses.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, in particular to a distributed sewage treatment system and a treatment method using the treatment system. Background technique [0002] With the development of my country's economy and the improvement of living standards, people's requirements for environmental protection are getting higher and higher. Nowadays, my country's cities have established a relatively complete sewage treatment system. However, in some remote areas and vast rural areas, the pollution sources are numerous and scattered, and the sewage cannot be effectively treated. Most villages do not have drainage channels and sewage treatment systems, and the random discharge of untreated production and domestic sewage has become an important reason for affecting the rural water environment. [0003] The main characteristics of decentralized sewage are wide distribution, small scale and large fluctuations in water v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F1/52C02F3/1215C02F3/1221C02F3/28C02F3/341C02F9/00C02F2001/007C02F2209/08C02F2209/10C02F2209/14C02F2209/16C02F2301/08
Inventor 李宝平李新凯
Owner 天津诚信环球节能环保科技有限公司
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