Heavy metal treatment method of electroplating wastewater

A technology for electroplating wastewater and metal treatment, which is used in metallurgical wastewater treatment, neutralization water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of high impact of treatment facilities, excessive electroplating wastewater effluent, and high operating costs. , to solve the problem of heavy metal pollution, reduce COD, and achieve the effect of long-term regeneration
CN101037243AInactive Publication Date: 2007-09-19陈启松
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
陈启松
Publication Date
2007-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a waste water treatment method, in particular to a heavy metal processing method in electroplating effluent, which comprises the steps of pretreatment, detection, filtration, adsorption, ionexchange and regeneration of filter material; wherein the filtration, adsorption and ionexchange processes are gathered to a whole, a sodium form resin serves as the filter material of the filtration, adsorption and ionexchange processes; the electroplating effluent contacts the resin sufficiently at a certain flow rate so as to be completely exchanged; and the resin is regenerated and recovered in good time according to the heavy metal content of the waste water. The present invention has the advantages of that the equipment is simple, the installation is convenient, the former waste water treatment process is not changed, the resin can be regenerated and recovered, the heavy metal ion and the suspended matter SS can be completely removed from the water, and the cost is reduced. The present invention can be widely used in the waste water treatment processes of various electroplating effluent.
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Description

technical field

[0001] The invention relates to a method for treating wastewater, in particular to a method for treating heavy metals in electroplating wastewater. technical background

[0002] The existing electroplating wastewater treatment methods include ion exchange method, iron-carbon micro-electrolysis method, chemical method, chemical chelation method, BM bacteria method, CHA biochemical method, etc. Among them, the ion exchange method has good treatment effect and occupies less land, but it has high investment and complicated operation, and only a few enterprises with better management adopt it. The iron-carbon micro-electrolysis process is short and requires less investment, but the effluent stability is poor; the chemical chelation method is complex. , high operating costs; BM bacteria method and CHA biochemical method have moderate investment costs, and the operating costs are generally around 6 yuan per ton of water, which is generally accepted by enterprises. H...

Claims

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