Biodegradation of methylmercury by bacteria of Empedobacter brevis in leachate

IJEMS (Indonesian Journal of Environmental Management and Sustainability)

Muhammad Said^1¹  Meli Anggraini² 

[1] Department of Chemistry, Faculty of Science and Mathematics, Universitas sriwijaya^2;Department of chemical Engineering, Faculty of Engoneering, Universitas sriwijaya^1

关键词: Leachate;    methylmercury;    inoculum concentration;    incubation time;    bacterial growth rate and substrate concentration;   

DOI  :  10.26554/ijems.2018.2.3.76-79

学科分类：地球科学(综合)

来源: ARTS Publishing Corp

【 摘 要 】

Leachate treatment containing methylmercury (CH3Hg⁺) can be done by using biodegradation method. Bacteria used in methylmercury biodegradation of the bacteria Empedobacter brevis . This study aims to examine the ability of bacteria in degrading methylmercury in leachate and determine the value of μ_max and Ks. The degradation process is done with variation of inoculum concentration and incubation time aerobically. The parameters analyzed were the decrease of methylmercury content in the biodegradation process. The results showed that biodegradation of methylmercury by the bacterium Empedobacter brevis at 15% inoculum concentration was the highest decrease efficiency of 81%. The values of μmax and Ks in the bacterium Empedobacter brevis were 0.994 per hour with a substrate concentration of 1.588 mg /l.

【 授权许可】

CC BY-NC-SA