title: [Effects of organic matters and temperature on the anaerobic biodegradation of nonylphenol polyethoxylates].
abstract: The biodegradation of nonylphenol polyethoxylates (NPEOs) was studied under three different reductive conditions (methanogenesis, denitrification, and desulfuration conditions). Effects of organic matter and temperature on the biodegradation of NPEOs were also studied. The results showed that NP9EO could be rapidly biodegraded under three different reductive conditions. Gulcose and sodium acetate could inhibit NP9EO biodegradation while yeast extract could enhance the biodegradation. Temperature coefficients (u), which was relative with rate coefficient (k), under methanogenesis, denitrification, and desulfuration conditions were 19.93 kJ/mol, 23.13 kJ/mol, 27.00 kJ/mol respectively, when temperature ranged from 15 degrees C to 35 degrees C. The result suggested that the biodegradation rate constant of NP9EO under desulfuration condition was more sensitive to temperature than those of denitrification and methanogenesis treatments. These results could provide useful information on bioremendation of NPEOs contaminants.
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China. zjyun1981@yahoo.com.cn
authors.forename: Jing-yun
authors.initials: JY
authors.lastname: Zhang
authors.forename: Jian
authors.initials: J
authors.lastname: Lü
authors.forename: Yi-liang
authors.initials: YL
authors.lastname: He
authors.forename: Qiang
authors.initials: Q
authors.lastname: Jin
authors.forename: Juan
authors.initials: J
authors.lastname: Zhao
authors.forename: Wen-ying
authors.initials: WY
authors.lastname: Zhang
mesh_terms: D001421:Bacteria, Anaerobic / Q000378:metabolism*; D001673:Biodegradation, Environmental; D004785:Environmental Pollutants / Q000378:metabolism*; D009930:Organic Chemicals / Q000378:metabolism; D010636:Phenols / Q000378:metabolism*; D011092:Polyethylene Glycols / Q000378:metabolism*; D013696:Temperature
chemical_list: D004785:Environmental Pollutants; D009930:Organic Chemicals; D010636:Phenols; D011092:Polyethylene Glycols; C025256:nonylphenol