title: Characteristics of phenol degradation in saline conditions of a halophilic strain JS3 isolated from industrial activated sludge.
abstract: Several halophilic bacteria have been reported to degrade phenol. However, there are a few works about salt-tolerant fungi which can utilize phenol as sole source of carbon. In this study, a halophilic strain JS3 which could degrade phenol with high efficiency was separated and identified. The effect of initial phenol concentration on phenol biodegradation was investigated and optimal pH, temperature, as well as salt-tolerance were evaluated. The isolate could degrade less than 800 mg/L phenol completely in 72 h. It grew well when pH, temperature, and salinity were at values of 4.0-9.0, 30-40°C, and 0-7%, respectively. The optimal pH, temperature and salinity were 6.0, 35°C and 0%. More than 99% of 500 mg/L phenol was degraded in the optimal condition within 24h. The tolerance of wide range of pH, temperature and salinity indicated that strain JS3 was effective for phenol removal in hypersaline wastewaters.
authors.affiliation: School of Civil Engineering, Wuhan University, Wuhan 430072, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: School of Civil Engineering, Wuhan University, Wuhan 430072, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Yang
authors.affiliation: School of Civil Engineering, Wuhan University, Wuhan 430072, China. Electronic address: hywangwhu10@163.com.
authors.forename: Hongyu
authors.initials: H
authors.lastname: Wang
authors.affiliation: School of Civil Engineering, Wuhan University, Wuhan 430072, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Shang
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Yang
mesh_terms: D001673:Biodegradation, Environmental; D002175:Candida / Q000302:isolation & purification* / Q000378:metabolism* / Q000502:physiology; D005658:Fungi / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D019800:Phenol / Q000378:metabolism*; D054712:Salinity; D055049:Salt Tolerance; D012722:Sewage / Q000382:microbiology*; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D007220:Industrial Waste; D012722:Sewage; D014874:Water Pollutants, Chemical; D019800:Phenol
keywords: Biological methods; Fungi; High-salt wastewater; Optimization; Phenol biodegradation