A zero discharge water treatment system continuous ion exchange softening process
By optimizing the continuous ion exchange unit and countercurrent regeneration technology, the problems of continuous operation and resource utilization of the ion exchange hardening method in the zero-emission system have been solved, reducing equipment investment and operating energy consumption, and achieving stable water treatment effect and resource recovery.
Patent Information
- Application Number
- CN202610624276.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ion exchange hardening methods in zero-emission systems suffer from problems such as insufficient continuous operation capability, high regeneration cost, significant safety risks, and resource waste. In particular, in coal chemical and mine water treatment, traditional ion exchange hardening technology operates intermittently, has high regenerant costs and significant pollution risks, and low resource utilization efficiency.
By optimizing the structure of a continuous ion exchange device and using sodium sulfate concentrate generated by a membrane concentration system as a regenerator, countercurrent regeneration is achieved. The regeneration process is optimized through an adsorption-two-stage synergistic regeneration-cleaning method, reducing equipment investment and operating energy consumption, and improving resource utilization.
It enables the simultaneous operation of continuous hardening treatment and resin regeneration, reduces equipment investment and operating energy consumption, improves resource utilization, ensures the stable operation of the membrane concentration system, and reduces solid waste treatment costs.
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Abstract
Citation Information
Patent Citations
Hardness removal device and method for high-hardness salt-containing wastewater
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