Film Pollution treating ultrasonic wave and magnetic field equipment

A technology of ultrasonic and membrane fouling, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., to achieve the effect of shortening service life, long service life and cost saving
CN1183998CInactive Publication Date: 2005-01-12BEIJING NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING NORMAL UNIVERSITY
Publication Date
2005-01-12
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

Ultrasonic wave with cavitation and magnetic field with scale preventing effect are used together in preventing membrane pollution. The apparatus consists of supersonic wave generator installed inside or outside the membrane module and permanent magnets set on outer wall of the membrane module. Ultrasonic wave produces vibration to prevent colloid particle, bacteria and organic matter from depositing on the membrane and its cavitation produces great amount of bubbles to clean the dirt on the membrane. Magnetic field is utilized to prevent calcium, magnesium and other inorganic ions from depositing on the membrane. Their combination produces excellent effect of preventing and eliminating the membrane pollution. The strengths of the ultrasonic wave and the magnetic field are relatively low and thus there will be no damage to the membrane.
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Description

technical field

[0001] The invention relates to a device for preventing and treating membrane pollution, in particular to a device for preventing and controlling membrane pollution such as microfiltration, ultrafiltration and reverse osmosis through the joint action of an ultrasonic generator and a permanent magnet. It is suitable for the separation and concentration of some or all components of liquids in water treatment, fruit juice concentration and other industries. Background technique

[0002] Due to the characteristics of energy saving, high efficiency, simplicity and easy operation, membrane separation technology has attracted widespread attention. This technology is widely used in various fields such as food, medicine, chemical industry, and environmental protection. Although new membrane materials and membrane components have been developed continuously, the problem of membrane pollution has restricted the large-scale promotion of membrane technology. According to...

Claims

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