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Urban sewage treatment system and process

A technology of urban sewage and treatment system, which is applied in water/sewage treatment, biological water/sewage treatment, light water/sewage treatment, etc. It can solve the problems of low sewage treatment efficiency and complex construction of sewage treatment system, so as to reduce the daily The effect of maintaining and overhauling engineering volume, improving sewage treatment efficiency, and reducing engineering investment and operating costs

Pending Publication Date: 2017-11-03
BEIJING BODA WATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems in the existing technology, and aiming at the problems of complex sewage treatment system construction and low sewage treatment efficiency, the present invention provides an urban sewage treatment system with reasonable layout, overall coordination, and maximum reduction of waste water discharge. Sewage treatment process using this system

Method used

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  • Urban sewage treatment system and process
  • Urban sewage treatment system and process

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Embodiment 1

[0030] Such as figure 1 with figure 2 Shown is an urban sewage treatment system. This system is an integrated device. The system includes a first box body and a second box body. The first box body includes an anoxic pool 2, an aerobic pool 3, a sedimentation pool 4 and clean water Pool 7, the second box includes regulating pool 1, MBR membrane pool 6 and sludge pool 5, regulating pool 1, anoxic pool 2, aerobic pool 3, sedimentation pool 4 and sludge pool 5 are connected in sequence through water pipes, MBR Membrane tank 6 communicates with sedimentation tank 5 , clear water tank 7 , anoxic tank 2 and sludge tank 4 respectively. There is a grille 10 at the entrance of the regulating tank 1, and the sewage passes through the grille 10 before flowing into the regulating tank 1, which is used to intercept and filter larger impurities such as suspended matter, floating matter, hair and fibers in the sewage; the sewage is lifted into the gap by a water pump. In the oxygen pool 2,...

Embodiment 2

[0039] Such as figure 1 A kind of urban sewage treatment process shown, comprises the following steps:

[0040] S1. After the sewage is collected and aggregated, the sewage pump lifts the sewage into the grid 10, and then flows into the regulating tank 1 to regulate the water quality and water quantity;

[0041] After the sewage is collected and pooled, the sewage pump lifts the sewage into the grid 10 to intercept larger suspended matter, floating matter, hair, fibers and other impurities in the sewage.

[0042] S2. The regulated sewage enters the anoxic pool 2 where the active biological filler is placed, and the mixer 11 is started to make the sewage contact and mix with the active biological filler, and perform denitrification;

[0043] The anoxic tank adopts the MBBR biological treatment process, and the mixer 11 stirs to make the biological filler move freely and distribute evenly, so as to ensure that the sewage can fully contact and mix with the microorganisms growing...

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Abstract

The invention discloses an urban sewage treatment system and process. The system includes a first box and a second box, the first box includes an anoxic pool, aerobic pools, a sedimentation pool and a clean water pool internally, the second box includes a regulation pool, an MBR membrane pool and a sludge pool internally, the regulation pool, the anoxic pool, the aerobic pools, the sedimentation pool and the sludge pool are communicated in order through a water pipe, the MBR membrane pool is communicated with the sedimentation pool, the clean water pool, the anoxic pool and the sludge pool respectively, and the anoxic pool and the aerobic pools are internally equipped with an MBBR reactor and a folded plate device. The system provided by the invention has the beneficial effects that: folded plates are disposed on the basis of the MBBR process to increase the contact time of sewage and the filler, thus greatly improving the sewage treatment efficiency; meanwhile the MBR membrane is set at a rear position, the system utilizes the comprehensive treatment process combining membrane separation technology and biological treatment technology, and has the advantages of high treatment efficiency, good effluent water quality, compact equipment, and small floor area, etc.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an urban sewage treatment system and process. Background technique [0002] Urban domestic sewage is mainly various detergents, sewage, garbage and feces used in urban life, mostly non-toxic inorganic salts, which contain more elements such as N, P, S, etc. Due to domestic water, initial rainwater, The influx of washing and other wastewater causes the N and P in domestic sewage to seriously exceed the standard, and the values ​​of COD and BOD are also increasing. Moreover, domestic sewage can cause pathogen pollution, oxidative pollution, acid-base and salt pollution, etc. [0003] In recent years, the economic development of Chinese cities has been relatively fast, and the amount of sewage generated by production and living in cities has also gradually increased. Compared with foreign developed countries, the urban sewage treatment rate in my country is not high, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/02C02F1/5281C02F1/32C02F1/001C02F2303/04C02F2301/08C02F2001/007C02F3/28C02F3/1268
Inventor 高阳翟进伟崔勇张振董丽霞
Owner BEIJING BODA WATER
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