Process method for treating electroplating comprehensive wastewater

A comprehensive technology of process method and electroplating, applied in the direction of metallurgical wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of high cost, environmental pollution, etc., to eliminate pollution, facilitate workers to operate, and process flow simple effect

Inactive Publication Date: 2014-07-30
SHENZHEN TIANJING ENVIRONMENTAL TECH DEV CO LTD
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  • Abstract
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Problems solved by technology

[0006] The present invention provides a process method for treating comprehensive electroplating wastewater in order to overcome the high cost of electroplating wastewater tre

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  • Process method for treating electroplating comprehensive wastewater

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Embodiment Construction

[0024] In order to better illustrate the present invention, further description will now be made in conjunction with the accompanying drawings.

[0025] A process for treating comprehensive electroplating wastewater, comprising the following steps:

[0026] a. Wastewater from all channels is discharged to the comprehensive wastewater pool, and then pumped to the degreasing tank. A grid is set at the entrance of the degreasing tank. The waste water passes through the degreasing tank to remove most of the slick oil, and then enters the sedimentation tank through the regulating tank. After a few hours of natural sedimentation in the sedimentation tank, some large suspended solids and other impurities can be removed; a small amount of sludge generated in the sedimentation tank is pumped into the sludge tank through the sludge pump, and after being treated in the sludge tank, the The supernatant is discharged into the comprehensive waste water pool for further treatment;

[0027] ...

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Abstract

The invention discloses a process method for treating electroplating comprehensive wastewater, and relates to the field of electroplating wastewater treatment. The method at least comprises the following steps: a, intensively exhausting wastewater into a comprehensive wastewater tank, pumping the wastewater into an oil removing tank by a pump, and entering a settling tank through a regulating tank; b, pumping out a liquid supernatant of the settling tank by the pump to enter quartz sand, active carbon and a microfiltration column to further filter water for mainly removing fine suspended matters of organic substances in the wastewater. The process method disclosed by the invention can be used for directly mixing wastewater of an electroplating workshop without pretreatment and separating treatment, and does not need to regulate PH value in stages; all wastewater passes through in one step, and the process flow is simple, so that operation of a worker and industrial production are facilitated; moreover, heavy metals and water resource can be recycled from electroplating wastewater, so that pollution of wastewater on environment is relieved or avoided, and electroplating clean production is realized, and therefore, electroplating wastewater of gold, sliver, nickel, copper, and the like, with higher additional value can be absorbed and recycled by resin, and good economic benefits are produced.

Description

technical field [0001] The invention relates to the field of electroplating wastewater treatment; in particular, it relates to a process for treating electroplating comprehensive wastewater. Background technique [0002] Electroplating technology is widely used in machine manufacturing, light industry, electronics and other industries. The composition of electroplating wastewater is very complex. In addition to cyanide (CN-) wastewater and acid-base wastewater, heavy metal wastewater is a potentially harmful category of wastewater in the electroplating industry. The treatment of electroplating wastewater is generally valued at home and abroad, and a variety of treatment technologies have been developed to eliminate and reduce the discharge of heavy metals through measures such as treating toxic to non-toxic, converting harmful to harmless, recycling precious metals, and recycling water; With the rapid development of the electroplating industry and the increasing requirement...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/16
Inventor 郭聪
Owner SHENZHEN TIANJING ENVIRONMENTAL TECH DEV CO LTD
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