Multistage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device and drinking water treatment method

A technology of drinking water treatment and activated carbon adsorption, which is applied in the direction of water/sewage multi-stage treatment, filtration treatment, water/sewage treatment, etc., can solve the problems of poor removal of trace organic matter and membrane fouling, and achieve the purpose of alleviating ultrafiltration membrane fouling, Enhanced flocculation effect and simple structure

Inactive Publication Date: 2017-01-11
HARBIN INST OF TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the poor removal effect of the existing ultrafiltration membrane process on trace organic matter and the membrane pollution caused by PAC in the PAC-ultrafiltration membrane combination process, and provides a combination of multi-stage activated carbon adsorption and ultrafiltration membrane for drinking water treatment Device and drinking water treatment method

Method used

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  • Multistage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device and drinking water treatment method

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specific Embodiment approach 1

[0030] Specific implementation mode one: combine figure 1 To illustrate this embodiment, the multi-stage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device in this embodiment includes a PAC dosing unit 1, a coagulant dosing unit 2, a flocculation reaction tank 3, a sedimentation tank 4, a return pipe 5, an ordinary Quick filter tank 6, aeration device 7, GAC filter tank 8 and ultrafiltration membrane module 9.

[0031] The upper part of the side wall of the flocculation reaction tank 3 is provided with a reaction tank water inlet 31, the lower part of the side wall of the flocculation reaction tank 3 is provided with a reaction tank water outlet 32, and the PAC dosing unit 1 and the coagulant dosing unit 2 are respectively connected to the reaction tank water inlet 31 of the flocculation reaction tank 3 through pipelines,

[0032] The lower part of the side wall of the settling tank 4 is provided with a settling tank water inlet ...

specific Embodiment approach 2

[0035] Specific embodiment two: this embodiment is different from specific embodiment one in that: the return pipe 5 is provided with a return pump 51, and the mixed liquid of charcoal and mud is controlled by the return pump 51 and flows back to the water inlet 31 of the flocculation reaction tank through the return pipe 5 place. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0036] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the aeration device 7 adopts ozone aeration or pure oxygen aeration. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a multistage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device and a drinking water treatment method and relates to a drinking water treatment device and a drinking water treatment method. The invention aims at solving the problems that removal effect on trace organic substances of an existing ultrafiltration membrane technology is poorer and membrane pollution is caused by PAC in a PAC-ultrafiltration membrane combined technology. The device comprises a PAC adding unit, a coagulant adding unit, a flocculation reaction tank, a sedimentation tank, a return pipe, a common rapid filter, an aeration device, a GAC filter tank and an ultrafiltration membrane component. The method comprises the following steps: adding PAC and a coagulant into raw water by virtue of the PAC adding unit and the coagulant adding unit, and then enabling the raw water to enter the flocculation reaction tank; enabling effluent of the flocculation reaction tank to enter the sedimentation tank, and enabling carbon mud mixed solution to return to a water inlet of a flocculation tank by virtue of the return pipe; and thirdly, enabling effluent of the sedimentation tank to enter the common rapid filter, enabling effluent of the common rapid filter to enter the GAC filter tank by virtue of the aeration device, and enabling effluent of the GAC filter tank to enter the ultrafiltration membrane component. The device and method provided by the invention are applied to the field of drinking water treatment.

Description

technical field [0001] The invention relates to a drinking water treatment device and a drinking water treatment method. Background technique [0002] With the continuous improvement of drinking water quality standards and the deteriorating quality of drinking water source water, membrane separation technology with ultrafiltration as the core has gradually become a research hotspot in the field of drinking water. Compared with the traditional water purification process, ultrafiltration can effectively intercept suspended particles, colloids, bacteria, viruses and macromolecular organic substances in the water body, but it is not effective for trace organic pollutants in the water body, such as endocrine disruptors, microcapsules, etc. Algal toxins, pharmaceuticals and personal care products, and persistent organic compounds have limited effects, and the presence of these trace organic pollutants will seriously affect the safety of drinking water quality. In order to solve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/281C02F1/444C02F1/5245C02F1/5281C02F1/78C02F3/02C02F2001/007C02F2003/003C02F2101/30C02F2209/11C02F2209/14C02F2301/046C02F2303/14
Inventor 梁恒成小翔常海庆唐小斌王天玉贾瑞宝纪洪杰李圭白
Owner HARBIN INST OF TECH
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