System and method for electrodialysis concentration of high-salt industrial wastewater without adding of chemicals for softening pretreatment
A technology of industrial wastewater and electrodialysis, applied in chemical instruments and methods, filtration treatment, water/sewage treatment, etc., can solve the problem of increasing the overall investment cost and operating cost of high-salt industrial wastewater reuse and zero discharge, and membrane separation technology Scaling fouling, increased operating costs and other issues, to achieve the effect of saving chemical costs, reducing the amount of sedimentation sludge, reducing system investment and operating costs
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[0016] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0017] As shown in the figure, an electrodialysis and concentration system for high-salt industrial wastewater that does not require dosing for softening and pretreatment includes a wastewater tank, a simple medium filtration pretreatment mechanism, an electrodialysis concentration and separation mechanism, a concentrated liquid pool, a sludge dehydration mechanism, and Crystal salt production mechanism, concentrated liquid membrane filtration processing mechanism is installed i...
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