title: Biosorption and biodegradation of triphenyltin by Brevibacillus brevis.
abstract: Triphenyltin (TPT) is an endocrine disruptor highly toxic to non-target organisms, and has contaminated the environment worldwide. To accelerate TPT elimination, the study on the behavior and mechanism of TPT biosorption and biodegradation by Brevibacillus brevis was conducted. The results revealed that TPT and coexisted Cu2+, Cd2+, Pb2+ and Zn2+ in solution could be adsorbed effectively by B. brevis, and TPT was further transformed to diphenyltin, monophenyltin and tin intracellularly. The removal efficiency of 0.5 mg L(-1) TPT after degradation by 0.3 g L(-1) biomass for 5d was about 60%. Suitable kinds and levels of oxygen, nutrient, surfactant and metals obviously improved TPT biodegradation. When concentrations of H2O2, glucose, rhamnolipid, Cu2+ and Zn2+ varied from 1.5 to 6 mmol L(-1), 0.5 to 5 mg L(-1), 5 to 25 mg L(-1), 0.5 to 6 mg L(-1) and 0.5 to 1 mg L(-1), separately, TPT biodegradation efficiencies increased 15-25%.
authors.affiliation: Department of Environmental Engineering, Jinan University, Guangzhou 510632, Guangdong, China.
authors.forename: Jinshao
authors.initials: J
authors.lastname: Ye
authors.forename: Hua
authors.initials: H
authors.lastname: Yin
authors.forename: Hui
authors.initials: H
authors.lastname: Peng
authors.forename: Jieqiong
authors.initials: J
authors.lastname: Bai
authors.forename: Danping
authors.initials: D
authors.lastname: Xie
authors.forename: Linlin
authors.initials: L
authors.lastname: Wang
mesh_terms: D000042:Absorption; D001673:Biodegradation, Environmental; D058675:Brevibacillus / Q000145:classification / Q000378:metabolism*; D004785:Environmental Pollutants / Q000302:isolation & purification / Q000378:metabolism*; D009947:Organotin Compounds / Q000302:isolation & purification / Q000378:metabolism*; D010575:Pesticides / Q000302:isolation & purification / Q000378:metabolism; D013045:Species Specificity
chemical_list: D004785:Environmental Pollutants; D009947:Organotin Compounds; D010575:Pesticides; C030665:triphenyltin