The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2
Arsenic often coexists with metal sulfide minerals and occurs in different speciation and different toxicity in responding to Fe/S biooxidation. The differential inhibitive effects and fates of As(III) and As(V) during biooxidations of elemental sulfur (S0), ferrous ions (Fe2+) and pyrite (FeS2) by...
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2021-10-01
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doaj-9b9481cf8af94940b0fe79263869007c2021-08-02T04:38:30ZengElsevierEcotoxicology and Environmental Safety0147-65132021-10-01222112502The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2Huai-dan Zhang0Ya-long Ma1Yu-hang Zhou2Hong-chang Liu3Zhen-yuan Nie4Xuan Pan5Xiao-lu Fan6Jin-lan Xia7School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Lab of Biometallurgy of the Ministry of Education of China, Central South University, Changsha 410083, China; Corresponding authors at: School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Lab of Biometallurgy of the Ministry of Education of China, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Lab of Biometallurgy of the Ministry of Education of China, Central South University, Changsha 410083, China; Corresponding authors at: School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, ChinaArsenic often coexists with metal sulfide minerals and occurs in different speciation and different toxicity in responding to Fe/S biooxidation. The differential inhibitive effects and fates of As(III) and As(V) during biooxidations of elemental sulfur (S0), ferrous ions (Fe2+) and pyrite (FeS2) by Sulfobacillus thermosulfidooxidans were studied. The results revealed that the arsenic species hardly changed for the biooxidation of S0, but dramatically changed for the biooxidation of Fe2+ and FeS2. Different transformation degree between As(III) and As(V) occurred for biooxidation of FeS2 in the presence of arsenic, where about 72% of As(III) was transformed to As(V) for the group with As(III) added, and 16% of As(V) was transformed to As(III) for that with As(V) added. Both formation and dissolution of amorphous ferric arsenate occurred during biooxidation of FeS2 with the addition of As(III) or As(V) and for the group grown on Fe2+ with added As(V), which were controlled by the changes of Fe/As molar ratio and pH value in the solution. Jarosite was detected for the group grown on Fe2+ and could adsorb As(III) and As(V). The inhibitive effects of As(V) were higher than As(III) when the strain grew on FeS2, which was contrary to those when the strain grew on S0 and Fe2+. The above results signify that the fates and inhibitive effects of arsenic are much related to each other, and such a relationship is significantly affected by the utilization of Fe/S energy substrates by the sulfur- and ferrous-oxidizing microorganisms.http://www.sciencedirect.com/science/article/pii/S014765132100614XArsenic ionsInhibitive effectsArsenic transformationSulfobacillus thermosulfidooxidansBiooxidation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Huai-dan Zhang Ya-long Ma Yu-hang Zhou Hong-chang Liu Zhen-yuan Nie Xuan Pan Xiao-lu Fan Jin-lan Xia |
spellingShingle |
Huai-dan Zhang Ya-long Ma Yu-hang Zhou Hong-chang Liu Zhen-yuan Nie Xuan Pan Xiao-lu Fan Jin-lan Xia The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2 Ecotoxicology and Environmental Safety Arsenic ions Inhibitive effects Arsenic transformation Sulfobacillus thermosulfidooxidans Biooxidation |
author_facet |
Huai-dan Zhang Ya-long Ma Yu-hang Zhou Hong-chang Liu Zhen-yuan Nie Xuan Pan Xiao-lu Fan Jin-lan Xia |
author_sort |
Huai-dan Zhang |
title |
The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2 |
title_short |
The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2 |
title_full |
The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2 |
title_fullStr |
The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2 |
title_full_unstemmed |
The differential inhibitive effects and fates of As(III) and As(V) mediated by Sulfobacillus thermosulfidooxidans grown on S0, Fe2+ and FeS2 |
title_sort |
differential inhibitive effects and fates of as(iii) and as(v) mediated by sulfobacillus thermosulfidooxidans grown on s0, fe2+ and fes2 |
publisher |
Elsevier |
series |
Ecotoxicology and Environmental Safety |
issn |
0147-6513 |
publishDate |
2021-10-01 |
description |
Arsenic often coexists with metal sulfide minerals and occurs in different speciation and different toxicity in responding to Fe/S biooxidation. The differential inhibitive effects and fates of As(III) and As(V) during biooxidations of elemental sulfur (S0), ferrous ions (Fe2+) and pyrite (FeS2) by Sulfobacillus thermosulfidooxidans were studied. The results revealed that the arsenic species hardly changed for the biooxidation of S0, but dramatically changed for the biooxidation of Fe2+ and FeS2. Different transformation degree between As(III) and As(V) occurred for biooxidation of FeS2 in the presence of arsenic, where about 72% of As(III) was transformed to As(V) for the group with As(III) added, and 16% of As(V) was transformed to As(III) for that with As(V) added. Both formation and dissolution of amorphous ferric arsenate occurred during biooxidation of FeS2 with the addition of As(III) or As(V) and for the group grown on Fe2+ with added As(V), which were controlled by the changes of Fe/As molar ratio and pH value in the solution. Jarosite was detected for the group grown on Fe2+ and could adsorb As(III) and As(V). The inhibitive effects of As(V) were higher than As(III) when the strain grew on FeS2, which was contrary to those when the strain grew on S0 and Fe2+. The above results signify that the fates and inhibitive effects of arsenic are much related to each other, and such a relationship is significantly affected by the utilization of Fe/S energy substrates by the sulfur- and ferrous-oxidizing microorganisms. |
topic |
Arsenic ions Inhibitive effects Arsenic transformation Sulfobacillus thermosulfidooxidans Biooxidation |
url |
http://www.sciencedirect.com/science/article/pii/S014765132100614X |
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