title: [Comparison of H2O2 and UV processes on the inactivation efficiency of Microcystic aeruginosa].
abstract: Setting Microcystic aeruginosa as study subject, the inactivation efficiency and its effect on photosynthetic activity by H2O2 and UV processes were investigated. The results showed that the inactivating efficiency increased with H2O2 dosage in the range of 0-2 mmol x L(-1), and the photosynthetic activity decreased with it gradually, but the efficiency wasn't enhanced when the dosage exceeded 2 mmoL x L(-1). The inactivation by UV process was high. Under the algae concentration of 35 x 10(8) cells/L, UV dosage of 91.8 mJ/cm2 was enough to inhibit its growth by 7d; UV process was superior to H2O2 in terms of photosynthetic activity, also the parameters could be fitted exponentially well; To guarantee high removal of algae, H2O2 must be dosed excessively, so UV254 of algae solution would be higher than that of UV process.
authors.affiliation: Key Laboratory of Yangtze River Water Environment, Ministry of Education (Tongji University), Shanghai 200092, China. guojianwei11@126.com
authors.forename: Jian-wei
authors.initials: JW
authors.lastname: Guo
authors.forename: Yong-ji
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Guo
authors.initials: G
authors.lastname: Zeng
authors.forename: Ling-ling
authors.initials: LL
authors.lastname: Zhou
authors.forename: Nai-yun
authors.initials: NY
authors.lastname: Gao
mesh_terms: D046508:Culture Techniques; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D046931:Microcystis / Q000187:drug effects / Q000254:growth & development* / Q000528:radiation effects*; D014466:Ultraviolet Rays; D014876:Water Pollution / Q000517:prevention & control; D018508:Water Purification / Q000379:methods*
chemical_list: D006861:Hydrogen Peroxide