title: [Photodegradation of nonylphenol in water].
abstract: OBJECTIVE
  To investigate the environmental degradation process of nonylphenol(NP):
  
  
  METHODS
  The NP was detected by HPLC, and the system of ultraviolet light, ferrous ion and hydrogen peroxide was used to promote photo-degradation of NP in water.
  
  
  RESULTS
  The maximal photo-degradation of NP occurred at the 5.0 mg/L of Fe2+, pH 2.5 and 1 ml/L of H2O2, the environmental factors in order of importance to promoting the photo-degradation of NP were: illumination time, initial concentration of NP, pH value, concentration of H2O2, concentration of Fe2+.
  
  
  CONCLUSIONS
  The system of ultraviolet light, ferrous ion and hydrogen peroxide was effective in promoting the photo-degradation of NP.
authors.affiliation: Department of Sanitary Technology, West China School of Public Health, Sichuan University, Chengdu 610041, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yang
authors.forename: Ke-rong
authors.initials: KR
authors.lastname: Zhang
authors.forename: Bo
authors.initials: B
authors.lastname: Zheng
authors.forename: De-sheng
authors.initials: DS
authors.lastname: Wu
mesh_terms: D002851:Chromatography, High Pressure Liquid; D006861:Hydrogen Peroxide; D016571:Neural Networks, Computer; D010636:Phenols / Q000032:analysis*; D010777:Photochemistry; D010782:Photolysis; D013472:Sunlight; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
chemical_list: D010636:Phenols; D014874:Water Pollutants, Chemical; C025256:nonylphenol; D006861:Hydrogen Peroxide