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Bromate formation and BAC removal in drinking water treatment process
M.ASAMI,T.AIZAWA,T.MORIOKA,N.HASHIMOTO,W.NISHIJIMA,A.TABATA,Y.MAGARA 嶺南大學校 環境問題硏究所 1997 環境硏究 Vol.17 No.1
AbstractOzonation of water that has been effected by seawater intrusion or bromide contamination, inevitably results in significant bromate formation. Seasonal changes in bromate formation in water containing a high concentration of bromide were investigated at an experimental ozonation plant. When operational ozone conditions were set to maintain ozone residue at a constant level, bromate formation was significantly correlated with temperature, E260, color, and ozone dose. In GAC(granular activated carbon) column experiments, the bromate removal rate apparently decreased during transition from GAC to BAC (biological activated carbon) following ozonation. Batch experiments confirmed GAC's capacity and BAC's inability to reduce bromate ions to bromide ions. Ozonation conditions must be optimized to minimize bromate and other by-products'formation while maintaining target levels of substance removal.
h Ninomiya,T. Imai,T. Fujii,T. Suzuki,T. Fujita,T. Yamamoto,Y. Uesugi,Y. Kamada,Y. Takase,Y. Kudo,Y. Miura,Y. Ikeda,Y. M. Miura,A. Shimizu,A. Kimura,A. Morioka,A. Nishimura,A. Sagara,G. Kurita,H. Kubo 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
The NCT Program, in which the present JT-60U is being modified into a superconducting coil machine, is discussed under nationwide collaboration in Japan. Its mission is to establish high-beta steady-state operation for DEMO and to contribute to ITER. NCT is designed to have potential to investigate such research.
Southeast Asian Foot-and-Mouth Disease Viruses in Eastern Asia
Knowles, Nick J.,He, JiJun,Shang, Youjun,Wadsworth, Jemma,Valdazo-Gonzá,lez, Begoñ,a,Onosato, Hiroyuki,Fukai, Katsuhiko,Morioka, Kazuki,Yoshida, Kazuo,Cho, In-Soo,Kim, Su-Mi,Park, Jong-Hye Centers for Disease Control and Prevention 2012 Emerging infectious diseases Vol.18 No.3
<P>Foot-and-mouth disease (FMD) outbreaks recently affected 2 countries (Japan and South Korea) in eastern Asia that were free of FMD without vaccination. Analysis of viral protein 1 nucleotide sequences indicated that FMD serotype A and O viruses that caused these outbreaks originated in mainland Southeast Asia to which these viruses are endemic.</P>