With the development of manganese ore resources, a large number of electrolytic manganese residue (EMR) was produced, which causes serious environmental pollution (like water pollution, soil pollution, etc.). The control of water content and decomposition of compound salts are the key issues to harmless treatment of EMR. Among them, the control of ammonia nitrogen and manganese content and the decomposition of compound salts are the severe challenges facing the resource utilization of compound salt. Hence, from the perspective of environmental protection and energy-saving, this work adopted solar electrokinetic remediation methods to treat the EMR of an electrolytic manganese plant in Guangxi, then explores the changes of water content, pH value and NH₄⁺-N and Mn²⁺ content in different regions of electrolytic cell. Besides, SEM, XRD and XRF were employed to analyze the basic physicochemical properties of the EMR before and after the remediation, from which it was found that under the action of an electric field, Mn²⁺ migrated directionally from the anode area to the cathode area and solidified into Mn(OH)₂ and MnOOH. Meanwhile, NH₄⁺-N migrated to the cathode, it formed (NH₄)₂SO₄ on the surface of the EMR which can be easy to separate. After 72 h of solar electrokinetic remediation, the concentration of Mn²⁺ in the cathode area was decreased from 1725.5 mg L⁻¹ to 84.3 mg L⁻¹, and the NH₄⁺-N content in the anode area declined from 907.9 mg L⁻¹ to 196.4 mg L⁻¹. In addition, (NH₄)₂(Mg, Mn, Fe)(SO₄)₂·6H₂O and other compound salts can be decomposed into (NH₄)₂SO₄ and (Mg, Mn, Fe)SO₄, other single salts that can be cleaned easily under the action of the electric field.

随着锰矿资源的开发，产生了大量的电解锰残渣（EMR），造成了严重的环境污染（如水污染，土壤污染等）。控制水含量和复合盐的分解是无害处理EMR的关键问题。其中，氨氮和锰含量的控制以及复合盐的分解是复合盐资源利用面临的严峻挑战。因此，从环境保护和节能的角度出发，本文采用太阳能电动修复方法对广西某电解锰厂的EMR进行处理，探讨了水含量，pH值以及NH ₄ ⁺ -N和Mn的变化。²⁺在电解池不同区域的含量。此外，用SEM，XRD和XRF分析了修复前后EMR的基本理化性质，发现在电场作用下，Mn ²⁺从阳极区域定向迁移到阴极。并固化成Mn（OH）₂和MnOOH。同时，NH ₄ ⁺ -N迁移到阴极，在EMR的表面形成（NH ₄）₂ SO ₄，易于分离。太阳电动修复72小时后，阴极区域中的Mn ²⁺浓度从1725.5 mg L ^-1降至84.3 mg L^-1，并且阳极区域中的NH ₄ ⁺ -N含量从907.9 mg L ^-1降至196.4 mg L ^-1。另外，（NH ₄）₂（Mg，Mn，Fe）（SO ₄）₂ ·6H ₂ O和其他化合物盐可以分解为（NH ₄）₂ SO ₄和（Mg，Mn，Fe）SO ₄，可以在电场作用下轻松清洗的其他单盐。