Water Supply Vol 1 No 5-6 pp 357–364 © IWA Publishing 2001
Iron and manganese removal by a membrane filtration system
Y. Jimbo* and K. Goto**
*Department of R & D, Suido Kiko Co., Ltd., 48-16 Sakuragaoka 5-Chome Setagaya-ku Tokyo 194-0014 Japan. E-mail: y-jinbo@suiki.co.jp
**Department of Civil Eng., Graduate School of Eng., Tohoku University, Aoba Aramaki Aoba-ku Sendai 980-8579 Japan. E-mail: goto@hpaplz.civil.tohoku.ac.jp
ABSTRACT
The design standards of the iron and manganese removal system by membrane filtration were investigated. The membrane filtration after pre-chlorination could remove iron completely and could remove around 70% of manganese. In the case of manganese concentration being more than 0.05 mg/l, the membrane filtration could remove them completely after the deposition in the oxidation tank. The concentrations of iron and manganese were reduced more than 90% by the oxidation tank and were reduced until under the detection limit after the membrane filtration. The economic comparisons between the rapid sand filtration system and this membrane filtration system in a small capacity and a middle capacity were investigated. The 15 years total costs of the membrane filtration system were estimated to be smaller than or around equal to the rapid sand filtration system in both capacities.
Full article (PDF Format)
PAY-PER-VIEW: Buy this article for £20.00 (IWA MEMBER PRICE: £15.00)
|
