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Circulation utilization technology and equipment for electroplating waste water separated by integrated membrane

A technology that integrates membrane separation and electroplating wastewater, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, osmosis/dialysis water/sewage treatment, etc., to solve environmental pollution, effectively remove and reduce production costs. Effect

Inactive Publication Date: 2006-11-29
XIAMEN LEEBAM MEMBRANE TECH
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Problems solved by technology

[0005] The main purpose of the present invention is to overcome the many problems of the above-mentioned existing electroplating wastewater treatment methods, thereby providing a process and equipment for electroplating wastewater integrated membrane separation and recycling with better environmental and economic benefits

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  • Circulation utilization technology and equipment for electroplating waste water separated by integrated membrane

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Embodiment Construction

[0018] Refer below figure 1 A specific embodiment of the present invention will be described.

[0019] The electroplating wastewater integrated membrane separation and recycling equipment, its main structure includes a water collection tank 3, a pretreatment module 5 composed of activated carbon filter modules 51, microfiltration membrane modules 52, and ultrafiltration membrane modules 53 connected in series. , nanofiltration membrane module 8 and reverse osmosis membrane module 10. The water collection tank 3 is connected to the electroplating rinse tank 2 through an overflow pipe, and the inlet of the water collection tank 3 and the pretreatment assembly 5 is connected through a pipeline, and a booster pump 4 is installed in the pipeline; the permeate outlet of the ultrafiltration membrane module 53 is connected to a The high-level water tank 6 is connected, and the concentrate outlet water is connected to the water collection tank 3 through a pipeline; the intermediate wa...

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Abstract

An integrated membrane separating process for cyclic use of the electroplating sewage includes such steps as pre-treating for removing the micro-molecular organic substances and suspended substance, class-one separation by using nano-class membrane filter to intercept the concentrated liquid containing heavy metal and reuse it in electroplating bath, and class-two separation by using the reverse osmosis membrane to reuse the transmission liquid in rinsing bath and draining the concentrated liquid containing one-valence cations. Its apparatus is composed of water collecting tank, pre-treating module, nano-filter membrane module and membrane module.

Description

technical field [0001] The invention relates to the treatment of electroplating wastewater, specifically refers to the process and equipment for separating and treating electroplating wastewater by integrated membrane method, recovering and recycling heavy metal and water therein. Background technique [0002] The electroplating process refers to the method of depositing a thin layer of other metals or alloys on the surface of metal parts by electrolysis, including pre-plating treatment (oil removal, rust removal), metal layer plating and post-plating treatment (passivation, dehydrogenation, etc.) ) and other processes, common electroplating copper, nickel, chromium, zinc, copper-zinc alloy, copper-tin alloy, etc. Most of the enterprises in the electroplating industry are small and medium-sized enterprises, among which small and medium-sized enterprises account for 40%, and most of them are handicraft workshop-style processing enterprises. Therefore, during the electroplati...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/44
Inventor 王俊川
Owner XIAMEN LEEBAM MEMBRANE TECH
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