Ultrasound, magnetic field, pulse electrocoagulation and membrane composite waste water treatment method, and apparatus thereof

A pulsed electric and membrane composite technology, applied in the field of ultrasonic, pulsed electric flocculation and membrane composite technology to treat wastewater and magnetic field, can solve the problems of fast decline rate of membrane flux, shortened replacement cycle, high investment cost, etc., and achieves good clarification effect. , reduce energy consumption, the effect of small footprint
CN102424495AInactive Publication Date: 2012-04-25GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
Publication Date
2012-04-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses an ultrasound, magnetic field, pulse electrocoagulation and membrane composite waste water treatment method, and an apparatus thereof. The technological process of the method comprises that: waste water is conveyed to an electrocoagulation reactor by a pump in an up-flow manner, wherein an ultrasonic generator, electrode plates and a permanent magnet are arranged inside the electrocoagulation reactor, the electrocoagulation voltage is 5-30 V, the current is 5-40 A, the ultrasonic frequency is 20-100 KHz, the ultrasonic power is 100-400 W, and the magnetic field strength is 0.1-0.3 T; the water sample flows through the positions between the electrode plates, and performs circulating flowing by an outer circulation pump; the waste water is treated for 5-12 minutes by the synergism of the ultrasound, the magnetic field, and the pulse electrocoagulation, and then is conveyed in a sedimentation tank by a pump; the supernatant is conveyed to a membrane assembly to carry out filtration to further separate the mud and the water by a pump, wherein the mud is subjected to concentration treatment and recovery, and the water is subjected to standard discharge. The method of the present invention has the following advantages that: the method is applicable for treatments of a lot of the waste water, and the effluent quality is good and stable.
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Description

technical field

[0001] The invention relates to a method for treating waste water, in particular to a method for treating waste water by using ultrasonic, magnetic field, pulse electric coagulation and membrane composite technologies and the device used. technical background

[0002] Heavy metal wastewater is mainly electroplating wastewater, smelter wastewater and mine wastewater. The discharge of wastewater containing these heavy metals into rivers, lakes and seas will pollute water bodies, destroy ecosystems, and seriously endanger human health and agricultural and fishery production.

[0003] Electroflocculation technology is a new type of electrochemical treatment technology developed in recent years. It relies on electrochemical principles. It has a wide range of applications, mainly in electroplating, chemical industry, machinery, metallurgy, mining, battery and other industries. At present, most of the heavy metal wastewater adopts diversion technology and carries o...

Claims

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