title: Carbofuran Degradation by Biogenic Manganese Oxides.
abstract: This work studied the effect of biogenic manganese oxides (Bio-MnOx) on carbofuran degradation.The results showed that 21.05 % and 90.63 % carbofuran, respectively, were degraded in 4 days by Bio-MnOxwith and without NaN3at initial pH 4.80, whereas carbofuran was hardly degraded by chemical manganese oxides in the same condition. Bio-MnOxpromoted carbofuran hydrolysis by changing the pH of the environment and encouraged carbofuran phenol cleavage by its oxidization. Both the oxidation of carbofuran phenol by Bio-MnOxand the reoxidation of the released Mn(II) by Mn(II)-oxidizing microorganisms ensured the continuous reactivity of Bio-MnOxand prevented the secondary pollution of Mn(II). Carbofuran phenol was the major transformation product in the degradation and was further oxidized into small organic molecules as monitored by a GC/MS analyzer. This report offers an efficient, feasible, and no-secondary-pollution approach to controlling carbofuran pollution.
authors.affiliation: College of Basic Sciences, Huazhong Agricultural University, Wuhan, China.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Liu
authors.affiliation: College of Basic Sciences, Huazhong Agricultural University, Wuhan, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Basic Sciences, Huazhong Agricultural University, Wuhan, China.
authors.forename: Shuai
authors.initials: S
authors.lastname: Qian
authors.affiliation: College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China.
authors.forename: Gejiao
authors.initials: G
authors.lastname: Wang
authors.affiliation: College of Basic Sciences, Huazhong Agricultural University, Wuhan, China.
authors.forename: Jinling
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Basic Sciences, Huazhong Agricultural University, Wuhan, China. liaosj@mail.hzau.edu.cn.
authors.forename: Shuijiao
authors.initials: S
authors.lastname: Liao
mesh_terms: D002235:Carbofuran / Q000032:analysis*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D008345:Manganese / Q000032:analysis; D017895:Manganese Compounds / Q000494:pharmacology*; D053520:Marinobacter / Q000737:chemistry; D010084:Oxidation-Reduction; D010087:Oxides / Q000494:pharmacology*
chemical_list: D017895:Manganese Compounds; D010087:Oxides; D008345:Manganese; C027424:manganese oxide; D002235:Carbofuran
keywords: Bio-MnOx; Carbofuran; Degradation; Reoxidation