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Treating system for industrial wastewater containing heavy metal and treating method thereof

A technology for industrial wastewater and treatment systems, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of high cost, complicated operation, low metal purity, etc., and achieve the ability to withstand stress The effect of capacity improvement, automation degree improvement and power consumption cost reduction

Active Publication Date: 2012-04-25
HUNAN VARY TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a treatment system for heavy metal-containing industrial wastewater with simple structure and high metal recovery purity, so as to solve the technical problems of high cost of existing industrial waste treatment equipment, low recovery metal purity and complicated operation

Method used

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  • Treating system for industrial wastewater containing heavy metal and treating method thereof
  • Treating system for industrial wastewater containing heavy metal and treating method thereof

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Embodiment Construction

[0023] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0024] See figure 1 , A treatment system for industrial wastewater containing heavy metals, including: electrolytic tank 1, circulation tank 5 and transfer tank 6. One side of the electrolytic cell 1 is provided with a processing liquid mixing chamber 4, the processing liquid mixing chamber 4 is in communication with the electrolytic cell 1, and a connecting pipe 41 is provided between the processing liquid mixing chamber 4 and the electrolytic cell 1, and the connecting pipe 41 is provided with Valve, the solution to be treated enters the electrolytic cell 1 through the connecting pipe 41. A stirrer 42 is provided in the treatment liquid mixing chamber 4. When additives are added to the solution to be treated, the stirrer 42 is turned on so that the ...

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Abstract

The invention provides a treating system for industrial wastewater containing heavy metal. The system comprises an electrolytic tank (1); the electrolytic tank (1) comprises a first trough wall (11) and a second trough wall (12), which are arranged to be opposite; positive plates (2) and negative plates (3) are staggerly arranged in the electrolytic tank (1), the first ends of the positive plates(2) are fixed on the first trough wall (11), the first ends of the negative plates (3) are fixed on the second trough wall (12), and each negative plate (3) is a starting sheet of a tri-dimensional network structure. According to the invention, because of utilization of the tri-dimensional network structure in the treating system, the negative starting sheets have substantially improved capacity in bearing stress, and the problem of short circuit of cathodes and anodes caused by cracking of the negative plates is avoided; the operation of plate stripping is omitted. The invention also provides a treating method for industrial wastewater containing heavy metal by using the treating system.

Description

Technical field [0001] The invention relates to the field of industrial wastewater treatment and resource recovery, and in particular, to a treatment system for low-content heavy metal industrial wastewater. In addition, the present invention also relates to a method for treating low-content heavy metal industrial wastewater including the above-mentioned treatment system. Background technique [0002] Industrial wastewater is one of the important sources of current environmental pollution, and all countries attach great importance to the treatment of industrial wastewater and the recycling of resources. At present, there are two main treatment processes for acidic industrial waste liquid with heavy metal ion content below 15 g / L: one is the neutralization precipitation method; the second is the electrodeposition deposition method. [0003] The neutralization sedimentation method is currently the most common process for processing low-content heavy metal industrial waste. Its proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
Inventor 明果英周军陈建敏张勇
Owner HUNAN VARY TECH
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