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1 Journal of Environmental Biotechnology Vol. 15, No. 2, 71 75, 2016 総説 ( 特集 ) セレン代謝微生物を利用したセレン含有排水処理技術の開発 Development of Selenium-Containing Wastewater Treatment Technologies Using Microbial Selenium Transformation * Michihiko Ike*, Satoshi Soda and Masashi Kuroda * TEL: FAX: * ike@see.eng.osaka-u.ac.jp Graduate School of Engineering, Osaka University, 2 1 Yamadaoka, Suita, Osaka , Japan キーワード Pseudomonas stutzeri NT-I Key words: Selenium-containing wastewater, treatment, microbial selenium metabolism, Pseudomonas stutzeri NT-I はじめに 0.1 mg/l 6 2 SeO 4 2 : Se(VI) SeO 3 2 : Se(IV) 20 Se(VI) Se(VI) Se(IV) Lenz & Lens, ) Soda et al., ) Haygarth, ) 1 Se(VI) Se(IV) Se(0) Soda et al., ) Kagami et al., ) 2. 多才なセレン代謝細菌 Pseudomonas stutzeri NT-I Se(VI) P. stutzeri NT-I Kuroda et al., ) NT-I Se(VI) Se(0) NT-I

2 Pseudomonas stutzeri Se(VI) serabdc serxsr TSB Trypticase Soy Broth 80 mg-se/l Se(VI) 18 Se(IV) Se(0) Se(VI)/Se(IV) Se(0) nm NT-I Se(0) NT-I Se(0) Kagami et al., ) DMDSe DMDSe NT-I Se(VI) Se(IV) NT-I Se(VI) Se(VI) Thauera selenatis serabdc Krafft et al., ) Kuroda et al., ) 2 NT-I Se(VI) serabdc Se(VI) serabc redox enzyme maturation proteins REMPs Turner et al., ) serd T. selenatis serabdc 3 ORF 2 Se(VI) T. selenatis NT-I Se(VI) serxsr Se(VI) Se(IV) Se(IV) NT-I NT-I Se(VI) Se(IV) NT-I Se(IV) DMDSe NT-I DMDSe DMDS

3 73 3 A B Se(IV) cysi O-acetyl-l-serine l-cysteine cysk NT-I NT-I 3. P. stutzeri NT-I を利用したセレン含有排水処理技術の開発 NT-I 3.1 セレン製錬排水 3 NT-I Soda et al., ) NT-I ph Soda et al., ) NT-I Se(VI) ph NaCl g/l Se(VI) ph NaCl g/l ph P. stutzeri NT-I 255 L NT-I mg-se/ L Se(IV) mg-se/l 30 mg-se/l Se(VI) 5 Se(0) TSB Kagami et al., ) 3.2 汚泥焼却灰洗浄排水 0.3 mg/l 0.01 mg/l

4 ) 3.8 mg-se/l 10.0 g 100 ml mg-se/l Se(IV) 0.2 M mg-se/l Se(IV) 54 Se(VI) ) 9.7 g 0.06 mg-se/l ph ph 8.5 NT-I 6 48 Se(VI) NT-I Soda et al., ) Se(0) CdSe Ayano et al., ) 4. おわりに NT-I NT-I 5 6 P. stutzeri NT-I A B 25 M

5 75 ph NT-I NT-I Nakatani et al., ) NT-I 謝 B 文辞献 1) Ayano, H., M. Miyake, K. Terasawa, M. Kuroda, S. Soda, T. Sakaguchi, and M. Ike Isolation of a selenite-reducing and cadmium-resistant bacterium Pseudomonas sp. strain RB for microbial synthesis of CdSe nanoparticles. J. Biosci. Bioeng. 117: ) Haygarth, P.M Global importance and global cycling of selenium. pp In W.T. Frankenberger Jr. and S. Benson, editors. Selenium in environment. New York: Marcel Dekker. 3) Kagami, T., T. Narita, M. Kuroda, E. Notaguchi, M. Yamashita, K. Sei, S. Soda, and M. Ike Effective selenium volatilization under aerobic conditions and recovery from the aqueous phase by Pseudomonas stutzeri NT-I. Water Res. 47: ) Krafft, T., A. Bowen, F. Theis, and J. M. Macy Cloning and sequencing of the genes encoding the periplasmiccytochrome B-containing selenate reductase of Thauera selenatis. DNA Seq. 10: ) Kuroda, M., E. Notaguchi, A. Sato, M. Yoshioka, A. Hasegawa, T. Kagami, T. Narita, M. Yamashita, K. Sei, S. Soda, and M. Ike Characterization of Pseudomonas stutzeri NT-I capable of removing soluble selenium from the aqueous phase under aerobic conditions. J. Biosci. Bioeng. 112: ) Kuroda, M., E. Miwa, K. Sei, M. Yamashita, and M. Ike Selenate-reduction mechanism in Pseudomonas stutzeri NT-I, a promising biocatalyst for selenium removal and selenium recovery from contaminated water, Abstracts of IWA Metals in Water-Health Protection and Sustainable Through Technical Innovation November 6 9, 2013, Shanghai, China. The International Water Association. 7) Lenz, M. and P.N.L. Lens The essential toxin: the changing perception of selenium in environmental sciences. Sci. Total. Environ. 407: ) Nakatani, Y., M. Kuroda, S. Soda, and M. Ike Treatment of selenite-containing wastewater with high salinity by activated sludge and analysis of its microbial communities. Abstracts of International Anammox Symposium, pp ) Soda, S., M. Kashiwa, T. Kagami, M. Kuroda, M. Yamashita, and M. Ike Laboratory-scale bioreactors for soluble selenium removal from selenium refinery wastewater using anaerobic sludge. Desalination 279: ) Soda, S., H. Takahashi, T. Kagami, M. Miyake, E. Notaguchi, K. Sei, N. Iwasaki, and M. Ike Biotreatment of selenium refinery wastewater using pilot-scale granular sludge and swim-bed bioreactors augmented with a selenium-reducing bacterium Pseudomonas stutzeri NT-I. Japanese J. Wat. Treat. Biol. 48: ) Turner, R.J., A.L. Papish, and F. Sargent Sequence analysis of bacterial redox enzyme maturation proteins (REMPs). Can. J. Microbiol. 50: ) :

Journal of Environmental Biotechnology Vol. 12, No. 1, 3 8, 2012 総説 ( 特集 ) メタルバイオ技術による排水からのレアメタル回収の可能性 Potential of Metal-Biotechnology on Rare-Metal

Journal of Environmental Biotechnology Vol. 12, No. 1, 3 8, 2012 総説 ( 特集 ) メタルバイオ技術による排水からのレアメタル回収の可能性 Potential of Metal-Biotechnology on Rare-Metal Recovery from Wastewater 1 * 2 3 Michihiko Ike, Mitsuo