Fenton/ozone-based oxidation and coagulation processes for removing metals (Cu, Ni)-EDTA from plating wastewater

Manh Khai Nguyen,Van Son Tran,Thi Thuy Pham,Hoang Giang Pham,Bich Loan Hoang,Thao Huong Nguyen,Thi Ha Nguyen,Thi Huong Tran,Huu Hao Ngo

Journal of Water Process Engineering（2021）

引用 37|浏览8

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摘要

•Plating wastewater with high concentrations of Cu, Ni and COD was treated.•The combination of Fenton, ozone and coagulation/flocculation in 3 stage-treatment was utilized.•Conditions of pH, H2O2 dose, Fe2+ dose, ozone, reaction time, PAA dose were optimized.•Water quality parameters and ORP changes of the reaction solution were observed.•Mechanism of Cu and Ni removal by the AOPs was proposed and demonstrated.

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关键词

Advanced oxidation processes (AOPs),Metals-EDTA plating wastewater,Treatment,Coagulation,Fenton/ozone

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