EFFECT OF DIFFERENT HUMIC ACID MATERIALS ON STABILIZATION OF Mn IN ELECTROLYTIC MANGANESE SLAG

FENG Xu-han; LIU Fang; ZHU Jian; CHEN Zu-yong

doi:10.13205/j.hjgc.202009035

Volume 38 Issue 9

Nov. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(9): 219-223

FENG Xu-han, LIU Fang, ZHU Jian, CHEN Zu-yong. EFFECT OF DIFFERENT HUMIC ACID MATERIALS ON STABILIZATION OF Mn IN ELECTROLYTIC MANGANESE SLAG[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 219-223. doi: 10.13205/j.hjgc.202009035

Citation:

FENG Xu-han, LIU Fang, ZHU Jian, CHEN Zu-yong. EFFECT OF DIFFERENT HUMIC ACID MATERIALS ON STABILIZATION OF Mn IN ELECTROLYTIC MANGANESE SLAG[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 219-223. doi: 10.13205/j.hjgc.202009035

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EFFECT OF DIFFERENT HUMIC ACID MATERIALS ON STABILIZATION OF Mn IN ELECTROLYTIC MANGANESE SLAG

doi: 10.13205/j.hjgc.202009035

College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China

Received Date: 2019-07-12

Abstract

Abstract

In view of the environmental problems caused by the release of a large amount of Mn from the electrolytic manganese slag yard under rainy conditions, in this study, the modification of lignite and sodium humate was carried out, and the modified materials were further combined with chitosan and phenolic resin to investigate the effect of different humic acid materials on the stability of Mn in electrolytic manganese slag. The results showed that when the amount of humic acid material added was 5%~20%, the stability efficiency of Mn in manganese slag was 27.5%~31.5% for lignite, while the stability efficiency of humate to Mn was 7.2%~27.6% (for sodium humate). The Mn stabilization efficiency in manganese slag of the insoluble humic acid, from modified lignite, was up to 14.3%, but the sulfonated humic acid, from modified sodium humate, had a slight improvement. Furthermore, insoluble humic acid and sulfonated sodium humate were compounded with chitosan and phenolic resin respectively, it was concluded that the stability efficiency of Mn in manganese slag was up to 55.7% for chitosan-insoluble humic acid composite; and the stability efficiency of Mn in manganese slag was up to 73.1% for phenolic resin-sulfonated humic acid composite.
- electrolytic manganese slag,
- modified lignite,
- modified sodium humate,
- composite humic acid material,
- manganese stabilization efficiency

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References

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