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Degradation of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea by nanoscale zerovalent iron under aerobic and anaerobic conditions
The goal of present study was to investigate the applicability of nanoscale zerovalent iron (NZVI) on the degradation of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea (CCU) under aerobic and anaerobic conditions, respectively. The experimental results showed that NZVI could effectively degrade CCU, but the removal efficiencies were different under these two different conditions. The best removal efficiencies for CCU were 90.2 and 75.8% under aerobic and anaerobic conditions, respectively. The highly oxidative hydroxyl radicals and reductively hydrogen would account for the rapid degradation of CCU under aerobic and anaerobic conditions, respectively. The experimental results also showed that surfactant Tween 20 significantly inhibited the degradation of CCU under aerobic conditions. However it markedly enhanced the degradation of CCU under anaerobic condition.
Degradation of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea by nanoscale zerovalent iron under aerobic and anaerobic conditions
The goal of present study was to investigate the applicability of nanoscale zerovalent iron (NZVI) on the degradation of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea (CCU) under aerobic and anaerobic conditions, respectively. The experimental results showed that NZVI could effectively degrade CCU, but the removal efficiencies were different under these two different conditions. The best removal efficiencies for CCU were 90.2 and 75.8% under aerobic and anaerobic conditions, respectively. The highly oxidative hydroxyl radicals and reductively hydrogen would account for the rapid degradation of CCU under aerobic and anaerobic conditions, respectively. The experimental results also showed that surfactant Tween 20 significantly inhibited the degradation of CCU under aerobic conditions. However it markedly enhanced the degradation of CCU under anaerobic condition.
Degradation of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea by nanoscale zerovalent iron under aerobic and anaerobic conditions
Lin, Haiying (Autor:in) / Hou, Shaogang (Autor:in) / Xie, Guohong (Autor:in) / Yao, Ziwei (Autor:in) / Zhou, Qingxiang (Autor:in)
Journal of Environmental Science and Health, Part A ; 47 ; 2270-2276
01.12.2012
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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