2010 Fiscal Year Final Research Report
Implementation of biological filtration for simultaneous removal of arsenic, iron and manganese from groundwater in Asian countries
| Project/Area Number |
20404003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Osaka Sangyo University |
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Principal Investigator |
SUGAHARA Masataka Osaka Sangyo University, 人間環境学部, 教授 (60026119)
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| Co-Investigator(Kenkyū-buntansha) |
OZAKI Hiroaki 大阪産業大学, 工学部, 教授 (40135520)
HAMASAKI Tatsuhide 大阪産業大学, 人間環境学部, 教授 (50340617)
FUJIKAWA Yoko 京都大学, 原子炉実験所, 教授 (90178145)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 砒素 / 鉄 / 鉄バクテリア / 水処理 / 地下水 / ベトナム / ネパール |
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| Research Abstract |
We have developed the biological filtration system for simultaneous removal of iron, As, manganese and ammonia from water after 7 years of pilot test in Japan. It can be used in drinking water treatment plant as well as in individual household. Recently, the technique was successfully applied to treat As containing well water in Hanoi, Vietnam. In average, the raw water at the Hanoi site contained 9.6±3.1 mg/L of Fe and 59±8 μg/L of As during the term of the experiment. Ca. 90% of the total arsenic was As(III). The average As removal in the operation from Nov. 4, 2009 to Sep 27, 2010 was 84±6%, during which the flow rate was changed from 100 m/day to 400 m/day. Raw water feeding was continuous for the first 5 months, and was changed to intermittent mode (operate for 1 hr and stop for 3 hrs) because of the reduced groundwater level. When the flow rate was increased to 600 m/day after Sep 27, 2011, the removal was decreased to 67% probably because the filter bead height was small (less than 1 m) compared to the pilot test conducted in Japan (1.5m bead height). The results of the pilot-test showed that the biological filtration technology could efficiently remove As in groundwater from Hanoi.
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[Journal Article] Biological Elimination of Iron, Manganese, Arsenic and Ammonia to Replace the Existing System.2009
Author(s)
Y.Fujikawa, K.Takada, A.Minami, S.Tani, Y.Sugimoto, T.Hamasaki, M.Sugahara, K.Tonokai
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Journal Title
Proc.of The 8th International Symposium on Water Supply, Kobe, Japan
Pages: 657-658
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[Presentation] 生物酸化鉄による3価砒素の吸着現象の特異性2009
Author(s)
藤川陽子, 南淳志, 杉本裕亮, 水嶋智之, 佐藤文仁, 濱崎竜英, 菅原正孝, 櫻井伸治, 八島浩, 本間徹生, 平山明香
Organizer
第43回日本水環境学会年会
Year and Date
2009-03-18
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