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Aeration and low frequency ultrasonic wave reinforced film coagulation reaction separating device and method for producing drinking water thereby

A separation device, ultrasonic technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sewage multi-stage treatment, etc. The filtration process occupies a large area and other problems, so as to achieve the effect of flexible scale, prolonging the backwash cycle, and reducing irreversible membrane fouling.

Inactive Publication Date: 2010-07-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problems that the existing split coagulation-ultrafiltration process occupies a large area, the formation of flocs (alum flowers) is uneven, and the problems of serious membrane pollution; and it provides a membrane coagulation reaction separation device enhanced by aeration and low-frequency ultrasonic waves and method for producing drinking water

Method used

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  • Aeration and low frequency ultrasonic wave reinforced film coagulation reaction separating device and method for producing drinking water thereby
  • Aeration and low frequency ultrasonic wave reinforced film coagulation reaction separating device and method for producing drinking water thereby
  • Aeration and low frequency ultrasonic wave reinforced film coagulation reaction separating device and method for producing drinking water thereby

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specific Embodiment approach 1

[0008] Specific implementation mode one: combine figure 1 To illustrate, in this embodiment, aeration and low-frequency ultrasonic waves are used to strengthen the membrane coagulation reaction separation device, which includes a housing 1, an ultrafiltration membrane module 2, a backwash pump 3, a coagulant dosing tank 4, and a first aerator 6. Second aerator 7, blower 8, suction pump 9, pressure sensor 10, clean water tank 11, water inlet pipe 12, mud discharge pipe 13, backwash mud discharge pipe 14, ultrasonic generator 15, ultrasonic metal plate 16. Conical mud discharge plate 17, lift pump 19 and groove 20. The bottom of the housing 1 is provided with a groove 20. The bottom of the groove 20 is equipped with a first aerator 6 and a coagulant dosing tank 4. The liquid outlet of the water inlet is connected with the liquid inlet on the side wall of the groove 20, the water outlet of the water inlet pipe 12 is connected with the water inlet on the side wall of the groove 20...

specific Embodiment approach 2

[0011] Embodiment 2: This embodiment is different from Embodiment 1 in that: the material of the housing 1 is plexiglass or stainless steel. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0012] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the material of the ultrafiltration membrane module 2 is an organic membrane module, a ceramic membrane module or a stainless steel membrane module. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to an aeration and low frequency ultrasonic wave reinforced film coagulation reaction separating device and a method for producing drinking water thereby, belonging to the field of drinking water treatment. The invention solves the problems that split coagulation-ultrafiltration technique occupies large land, forms uneven floccule and causes severe film pollution. A groove is arranged at the bottom of a shell of the separating device, the bottom of the groove is provided with a first aerator, and the upper part of the shell is provided with an ultrasonic metal plate, a second aerator and an ultrafiltration film component. The source water is treated by aeration coagulation, ultrasonic cavitation and ultrafiltration film filtration of the separating device, so that the drinking water can be obtained. The water quality of the water treated by the device reaches the national drinking water standards GB5749-2006. The method reduces the film pollution, prolongs the service life of a film and obtains even floccule. The invention has small land occupying area and simple structure, is applicable to building and field water supply of a small country water supply device, temporary water supply of emergency as well as reconstruction and extension of municipal water plants, and has higher popularization value.

Description

technical field [0001] The invention belongs to the field of drinking water treatment; in particular, it relates to a membrane coagulation reaction separation device enhanced by aeration and low-frequency ultrasonic waves and a method for producing drinking water. Background technique [0002] With the aggravation of pollution of drinking water sources and the continuous expansion of cities, the safety and sanitation of drinking water in rural areas and the reconstruction and expansion of urban waterworks have been paid more and more attention by people. Rural areas lack certain infrastructure facilities, and the construction is scattered, making it difficult to realize centralized water supply; urban land is scarce, and there is often no suitable land for expansion of water plants. Ultrafiltration membrane separation technology can be designed according to the scale of water use. Small devices are convenient to transport and are suitable for decentralized rural water supply...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F1/52C02F1/36C02F1/44
Inventor 李圭白高伟梁恒韩梅田家宇陈忠林瞿芳术韩正双
Owner HARBIN INST OF TECH
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