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Development of a Microfilter Separation System Coupled with a High Dose of Powdered Activated Carbon for Advanced Water Treatment by Han-Seung Kim; Hiroyuki Katayama; Satoshi Takizawa; Shinichiro Ohgaki is a Environmental Science article available to read on EtoBox.

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Filtration experiments using a bench-scale immersed membrane separation system combined with PAC (powdered activated carbon) were conducted in order to investigate the effects of PAC on the efficiencies of operation and treatment and to evaluate the performance of the system. The experiments were carried out under such operation conditions as a filtration rate of 1 m/d (or 42 l/m 2 /h), water temperature of 20-25°C, and PAC dose of 0 g/l (PAC-0), 10 g/l (PAC-10) and 40 g/l (PAC-40). Synthetic secondary wastewater was used as a raw water; the influent concentrations of TOC (total organic carbon), UV254 (UV absorbance at 254 nm) and NH 4 + -N (ammonia nitrogen) were 9.09 mg/l, 16.4 1/m and 5.0 mg/l, respectively. TOC removal of 51, 74 and 83%, and UV254 removal of 63, 89 and 95% were obtained for PAC-0, PAC-10 and PAC-40, respectively. Ammonia oxidation was observed only for PAC-40, which started to occur on the 20th d from the operation and was completed in 25 d. Average filtration times up to TMP (transmembrane pressure) of 70 kPa were 32, 61 and 97 h for PAC-0, PAC-10 and PAC-40, respectively. The amounts of organic compounds attached to the membrane pore were 380, 280 and 64 mg o

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Author

Han-Seung Kim; Hiroyuki Katayama; Satoshi Takizawa; Shinichiro Ohgaki

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0011-9164)

Published

2005

Language

EN

Field

Environmental Science (Physical Sciences)