title: The occurrence and fate of phenolic compounds in a coking wastewater treatment plant.
abstract: The occurrence of 14 phenolic compounds (PCs) was assessed in the raw, treated wastewater, dewatered sludge and gas samples from a coking wastewater treatment plant (WWTP) in China. It was found that 3-cresol was the dominant compound in the raw coking wastewater with a concentration of 183 mg L(-1), and that chlorophenols and nitrophenols were in the level of μg L(-1). Phenol was the dominant compound in the gas samples, while 2,4,6-trichlorophenol predominated in the dewatered sludge sample. The anaerobic and aerobic tanks played key roles in the elimination of chlorophenols and phenols, respectively. Analysis of daily mass flows of PCs in WWTP showed that 89-98% of phenols and 83-89% of nitrophenols were biodegraded, and that 44-69% of chlorophenols were adsorbed to sludge, indicating that the fate of PCs was highly influenced by their biodegradability and physical-chemical property.
authors.affiliation: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Wanhui
authors.initials: W
authors.lastname: Zhang
authors.forename: Chaohai
authors.initials: C
authors.lastname: Wei
authors.forename: Chunhua
authors.initials: C
authors.lastname: Feng
authors.forename: Yuan
authors.initials: Y
authors.lastname: Ren
authors.forename: Yun
authors.initials: Y
authors.lastname: Hu
authors.forename: Bo
authors.initials: B
authors.lastname: Yan
authors.forename: Chaofei
authors.initials: C
authors.lastname: Wu
mesh_terms: D000327:Adsorption; D003077:Coke; D007220:Industrial Waste; D010636:Phenols / Q000032:analysis* / Q000737:chemistry; D012722:Sewage / Q000032:analysis / Q000737:chemistry; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
chemical_list: D003077:Coke; D007220:Industrial Waste; D010636:Phenols; D012722:Sewage; D062065:Wastewater; D014874:Water Pollutants, Chemical