Effect of KMnO4 on the migration and transformation of Mn2+ and NH4+-N in electrolytic manganese residue: Autocatalytic system of manganese (Mn2+-MnO2-Mn2+)

Huimin Yang,Yaling Deng,Jiancheng Shu,Mengjun Chen,Yong Yang,Zongyu Deng

Chemical Engineering Science（2023）

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摘要

•KMnO4 accelerates the migration and transformation of Mn2+ and NH4+-N in EMR.•NH4+-N was trapped in EMR mainly through electrostatic and ion exchange interactions.•Mn2+ was converted primarily for the new ecologically hydrated MnO2 (NEHMO).•This study provides theoretical support for the harmless treatment of EMR.

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关键词

EMR,Mn2+,NH4+-N,Migration and transformation,Autocatalytic system

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