镍
钴
硫酸盐还原菌
硫酸盐
硫化物
化学
溶解度
脱硫弧菌
硫化镍
细菌
无机化学
金属
降水
环境化学
嗜麦芽窄食单胞菌
核化学
有机化学
生物
物理
气象学
铜绿假单胞菌
遗传学
作者
Yun Liu,Antonio Serrano,Valentina Wyman,Esteban Marcellin,Gordon Southam,James Vaughan,Denys Villa-Gomez
标识
DOI:10.1016/j.jhazmat.2020.123506
摘要
This study evaluated the differences in nickel (Ni) and cobalt (Co) solubility in the presence of sulfate reducing bacteria (SRB) to evaluate the feasibility of selective recovery of both metals from mine-impacted waters. A series of sulfate reducing activity tests with Ni, Co and both metals showed that up to 99 % Ni remained soluble despite the availability of sulfide for precipitation, while Co sulfide precipitation always occurred (over 84.5 %). The characterization of proteins in the liquid phase of the experiments revealed that some proteins were only produced in the experiments where Ni displayed higher solubility, suggesting their involvement in metal complexation. Some functions of these proteins included maintaining Ni homeostasis, acting as metalloenzymes and containing Ni-binding ligands. Desulfomicrobium baculatum, Stenotrophomonas maltophilia, and Desulfovibrio magneticus, were the main responsible species producing these proteins.
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