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Wastewater treatment system and method for improving coefficient of recovery

A wastewater treatment system and subsystem technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. The effect of pollution, reducing resource waste and improving recovery rate

Inactive Publication Date: 2009-04-08
BEIJING SOUND ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the problems existing in the above-mentioned prior art, the object of the present invention is to provide a water treatment system and treatment method for improving the recovery rate, which can effectively improve the recovery rate of sewage treatment with a relatively low investment, and solve the waste of resources and pollution problems

Method used

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  • Wastewater treatment system and method for improving coefficient of recovery
  • Wastewater treatment system and method for improving coefficient of recovery
  • Wastewater treatment system and method for improving coefficient of recovery

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Embodiment 1

[0026] The present embodiment provides a kind of waste water treatment system that improves recovery rate, and this system is the waste water treatment system that utilizes ultrafiltration / microfiltration technology, and it can effectively improve the recovery rate of wherein ultrafiltration / microfiltration equipment treats sewage, and this system is as follows figure 2 shown, including:

[0027] Sand filter feedwater pump 1, sand filter 2, ultrafiltration feedwater pump 3, ultrafiltration / microfiltration equipment 4 and coagulation sedimentation subsystem; among them, sand filter feedwater pump 1 is provided with sewage inlet pipe A, sand filter feedwater pump 1 The outlet pipe of the sand filter is connected with the sand filter 2, the ultrafiltration feed water pump 3 and the ultrafiltration / microfiltration equipment 4 in sequence to form the main treatment system; the backwash waste water discharge pipe 18 of the sand filter, and the concentrated liquid and the reverse Th...

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Abstract

The invention discloses a wastewater treatment system for improving the recovery rate and a treatment method thereof, which belongs to the field of wastewater treatment. The system comprises a sand filter feed water pump, a sand filter, an ultra-filtration feed water pump, an ultra-filtration / micro-filtration device and a coagulating sedimentation sub system, wherein the sand filter feed water pump is provided with a wastewater inlet pipe, and an outlet pipe of the sand filter feed water pump is orderly connected with the sand filter, the ultra-filtration feed water pump and the ultra-filtration / micro-filtration device so as to form a main treatment system; and a back wash wastewater discharge pipe of the sand filter and the concentrated solution and a back wash wastewater discharge pipe of the ultra-filtration / micro-filtration device are connected to the coagulating sedimentation sub system, and a supernatant return pipe of a sedimentation tank of the coagulating sedimentation sub system is connected to the wastewater inlet pipe of the sand filter feed water pump. By the coagulating sedimentation process, the supernatant which is obtained after the concentrated solution and the back wash wastewater of the ultra-filtration / micro-filtration device and the back wash wastewater of the sand filter during the pre-treatment are treated is returned back to the ultra-filtration / micro-filtration system for treatment and is then discharged as purified water, thereby improving the recover rate and the water utilization rate of the ultra-filtration / micro-filtration device.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a wastewater treatment system and a treatment method for improving the recovery rate. Background technique [0002] At present, ultrafiltration (UF) / microfiltration (MF) technology is widely used in wastewater treatment systems to improve the recovery rate of sewage treatment. figure 1 Provided is an existing wastewater treatment system utilizing ultrafiltration / microfiltration technology, which is mainly composed of a pretreated sand filter unit 21 and an ultrafiltration (UF) / microfiltration (MF) device 22. In this wastewater treatment system , the good water B1 treated by the ultrafiltration / microfiltration device is directly discharged, and generally the concentrate produced by the ultrafiltration / microfiltration device 22, the backwash wastewater D1 and the pretreated sand filter unit 21 before the ultrafiltration / microfiltration treatment The backwash wastewater C1 ...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/52
Inventor 王建泰李天增文一波王凯张宝林候广智苏宏
Owner BEIJING SOUND ENVIRONMENTAL ENG
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