caa a22 4500 606199926 CHVBK 20210128100941.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10653-015-9708-x doi (NATIONALLICENCE)springer-10.1007/s10653-015-9708-x Influence of clay minerals on sorption and bioreduction of arsenic under anoxic conditions [Elektronische Daten] [Nasrin Ghorbanzadeh, Amir Lakzian, Akram Halajnia, Akhil Kabra, Mayur Kurade, Dae Lee, Byong-Hun Jeon] Adsorption of As(V) on various clay minerals including kaolinite (KGa-1), montmorillonite (SWy-1) and nontronites (NAU-1 and NAU-2), and subsequent bioreduction of sorbed As(V) to As(III) by bacterium Shewanella putrefaciens strain CN-32 were investigated. Nontronites showed relatively higher sorption capacity for As(V) primarily due to higher iron oxide content. Freundlich equation well described the sorption of As(V) on NAU-1, NAU-2 and SWy-1, while As(V) sorption isotherm with KGa-1 fitted well in the Langmuir model. The bacterium rapidly reduced 50% of dissolved As(V) to As(III) in 2h, followed by its complete reduction (>ca. 98%) within 12h. In contrast, sorption of As(V) to the mineral surfaces interferes with the activity of bacterium, resulting in low bioreduction of As(V) by 27% for 5days of incubation. S. putrefaciens also promoted the reduction of Fe(III) present in the clay mineral to Fe(II). This study indicates that the sorption and subsequent bioreduction of As(V) on clay minerals can significantly influence the mobility of As(V) in subsurface environment. Springer Science+Business Media Dordrecht, 2015 Adsorption nationallicence Arsenic nationallicence Bioreduction nationallicence Clay minerals nationallicence Shewanella putrefaciens nationallicence Ghorbanzadeh Nasrin Department of Soil Science, Agricultural College, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran aut Lakzian Amir Department of Soil Science, Agricultural College, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran aut Halajnia Akram Department of Soil Science, Agricultural College, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran aut Kabra Akhil Department of Natural Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, 133-791, Seoul, South Korea aut Kurade Mayur Department of Natural Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, 133-791, Seoul, South Korea aut Lee Dae Department of Energy and Mineral Resources Engineering, College of Engineering, Dong-A University, 840 Handan2-dong, Saha-gu, 604-714, Busan, South Korea aut Jeon Byong-Hun Department of Natural Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, 133-791, Seoul, South Korea aut Environmental Geochemistry and Health Springer Netherlands 37/6(2015-12-01), 997-1005 0269-4042 37:6<997 2015 37 10653 https://doi.org/10.1007/s10653-015-9708-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10653-015-9708-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ghorbanzadeh Nasrin Department of Soil Science, Agricultural College, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran aut NATIONALLICENCE 700 1- Lakzian Amir Department of Soil Science, Agricultural College, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran aut NATIONALLICENCE 700 1- Halajnia Akram Department of Soil Science, Agricultural College, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran aut NATIONALLICENCE 700 1- Kabra Akhil Department of Natural Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, 133-791, Seoul, South Korea aut NATIONALLICENCE 700 1- Kurade Mayur Department of Natural Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, 133-791, Seoul, South Korea aut NATIONALLICENCE 700 1- Lee Dae Department of Energy and Mineral Resources Engineering, College of Engineering, Dong-A University, 840 Handan2-dong, Saha-gu, 604-714, Busan, South Korea aut NATIONALLICENCE 700 1- Jeon Byong-Hun Department of Natural Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, 133-791, Seoul, South Korea aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Springer Netherlands 37/6(2015-12-01), 997-1005 0269-4042 37:6<997 2015 37 10653