Municipal sewage treatment and purification system

A technology for purification system and municipal sewage, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, sludge treatment, etc. It can solve the problems of insufficient oxidation and decomposition of organic matter, unstable and complex treatment effect, etc. , to reduce the probability of contact with sludge particles, slow down the formation of the filter cake layer, and reduce the amount of excess sludge

Pending Publication Date: 2022-04-29
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the existing municipal sewage treatment system is complex, and the oxidation and decomposition of organic substances in the water body are not sufficient, and the treatment effect is not stable enough.

Method used

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  • Municipal sewage treatment and purification system

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Embodiment

[0015] Example: Control figure 1

[0016] A municipal sewage treatment and purification system, along the direction of sewage flow, including a grid well 1, a regulating tank 2, an upflow anaerobic sludge bed reactor 3, a sludge purification system and a built-in The membrane pool 12 of the membrane module 13 and the grid well 1 are mainly used to separate larger volumes of impurities in the sewage, such as leaves and garbage. The water outlet of the membrane module 13 is connected with a suction pump 14 through a pipeline. The bottom of the membrane pool 12 is provided with an aeration device, and the aeration device includes a nitrogen generator, a shut-off valve and an aerator located inside the lower end of the membrane pool 12, and the aerator is located under the membrane module 13, and the nitrogen gas is generated The device, shut-off valve and aerator are connected by pipelines in turn. When the device of the present application is working, when more pollutant part...

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Abstract

The invention discloses a municipal sewage treatment and purification system which comprises a grating well, an adjusting tank, an up-flow anaerobic sludge blanket reactor, a sludge purification system and a membrane tank containing a membrane assembly which are sequentially communicated through a pipeline, an aeration device is arranged at the bottom of the membrane tank, and a water outlet of the membrane assembly is connected with a suction pump through a pipeline. The sludge purification system comprises at least two stages of purification treaters, every two adjacent stages of purification treaters are communicated in series through a communicating pipe, a bearing pore plate is fixedly arranged at the lower end of the interior of each purification treater, and a filler particle bed layer is laid on each bearing pore plate. The sludge purification system is arranged between the up-flow anaerobic sludge bed reactor and the membrane tank, so that most particulate matters in water are further intercepted, the probability that a membrane assembly in the membrane tank is in contact with sludge particles is greatly reduced, formation of a filter cake layer on the surface of a membrane is slowed down, and the energy consumption of membrane pollution control is further reduced.

Description

technical field [0001] The invention relates to a municipal sewage treatment and purification system. Background technique [0002] Municipal sewage, usually domestic sewage, industrial wastewater and initial rainwater; the main pollutants of sewage include pathogen pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants; according to the point of view of sewage sources, sewage can be defined as from Waste-carrying liquid or water mixed with groundwater, surface water, snowstorms, etc. discharged from residences, institutions, commercial or industrial areas; sewage has many categories, and there are many technologies and processes to reduce the impact of sewage on the environment accordingly. At present, the existing municipal sewage treatment system is complex, and the oxidation and decomposition of organic matter in the water body is not sufficient, and the treatment effect is not stable enough. Contents of the invention [0003] In view of the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/28C02F11/00C02F11/121C02F101/30
CPCC02F1/001C02F3/2846C02F3/2866C02F11/00C02F11/121C02F2101/30
Inventor 卢晗锋王一聪余晓佳
Owner ZHEJIANG UNIV OF TECH
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