TY - JOUR
T1 - Enhancing Roxarsone Degradation and in Situ Arsenic Immobilization Using a Sulfate-Mediated Bioelectrochemical System
AU - Tang, Rui
AU - Prommer, Henning
AU - Yuan, Shoujun
AU - Wang, Wei
AU - Sun, Jing
AU - Jamieson, James
AU - Hu, Zhen Hu
PY - 2021/1/5
Y1 - 2021/1/5
N2 - Roxarsone (ROX) is widely used in animal farms, thereby producing organoarsenic-bearing manure/wastewater. ROX cannot be completely degraded and nor can its arsenical metabolites be effectively immobilized during anaerobic digestion, potentially causing arsenic contamination upon discharge to the environment. Herein, we designed and tested a sulfate-mediated bioelectrochemical system (BES) to enhance ROX degradation and in situ immobilization of the released inorganic arsenic. Using our BES (0.5 V voltage and 350 μM sulfate), ROX and its metabolite, 4-hydroxy-3-amino-phenylarsonic acid (HAPA), were completely degraded within 13-22 days. In contrast, the degradation efficiency of ROX and HAPA was
AB - Roxarsone (ROX) is widely used in animal farms, thereby producing organoarsenic-bearing manure/wastewater. ROX cannot be completely degraded and nor can its arsenical metabolites be effectively immobilized during anaerobic digestion, potentially causing arsenic contamination upon discharge to the environment. Herein, we designed and tested a sulfate-mediated bioelectrochemical system (BES) to enhance ROX degradation and in situ immobilization of the released inorganic arsenic. Using our BES (0.5 V voltage and 350 μM sulfate), ROX and its metabolite, 4-hydroxy-3-amino-phenylarsonic acid (HAPA), were completely degraded within 13-22 days. In contrast, the degradation efficiency of ROX and HAPA was
UR - http://www.scopus.com/inward/record.url?scp=85098963759&partnerID=8YFLogxK
U2 - 10.1021/acs.est.0c06781
DO - 10.1021/acs.est.0c06781
M3 - Article
C2 - 33301302
AN - SCOPUS:85098963759
SN - 0013-936X
VL - 55
SP - 393
EP - 401
JO - Environmental Science and Technology
JF - Environmental Science and Technology
IS - 1
ER -