Multi-stage treatment method of coal chemical wastewater
By employing a multi-stage treatment method composed of dimethyl carbonate and ammonium oximes, the problem of pH sensitivity of organic matter removal agents in coal chemical wastewater has been solved. This method achieves efficient removal of various organic substances, has wide applicability, and reduces treatment costs.
CN120289002BActive Publication Date: 2026-06-26HUATING HUAMEI QINGNENG COAL CHEM CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUATING HUAMEI QINGNENG COAL CHEM CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Existing methods for treating wastewater from coal chemical industries require pH adjustment to improve the efficiency of organic matter removal, and they are less effective at removing hydrophilic organic compounds such as carbazole, indole, and pyrrole.
Method used
A multi-stage treatment method consisting of dimethyl carbonate and amoximes is adopted, including sedimentation, static stratification and cation exchange, which utilizes the multifunctional active groups of amoximes to efficiently remove organic matter under different pH conditions.
Benefits of technology
It achieves efficient removal of various organic substances, has wide applicability, does not require pH adjustment, and reduces treatment costs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN120289002B_ABST
Abstract
The present application relates to a kind of coal chemical industry wastewater multistage processing method, belong to wastewater treatment technical field.The organic matter removal agent in the coal chemical industry wastewater multistage processing method of the present application has good removal effect to multiple organic matters (including lipophilic organic matter volatile phenol, thiophene, pyridine, quinoline, furan, naphthalene, anthracene, phenanthrene and hydrophilic organic matter carbazole, indole and pyrrole) in coal chemical industry wastewater of different pH.The coal chemical industry wastewater multistage processing method of the present application is not sensitive to the pH of wastewater, and the applicability is wider, can process multiple different pH wastewater, save pretreatment step, reduce processing cost.The carbonic acid dimethyl ester and amide oxime in the organic matter removal agent in the coal chemical industry wastewater multistage processing method of the present application have synergistic effect, both can play synergistic effect, improve the removal rate of multiple organic matters in coal chemical industry wastewater.
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