The effects of particle size and mixing method of adsorbent during pretreatment in a microfiltration system were investigated. Micrometre-size powdered activated carbons (PACs) obtained by pulverization of an as-received PAC removed natural organic matter (NOM) from water much more efficiently than the as-received PAC, without additional membrane fouling and trans-membrane pressure buildup. The dosage of micrometre-size PAC required for pretreatment was one-sixth the equipollent dosage of the as-received PAC. The coagulant – PAC dosing sequence did not affect the extent of NOM removal, suggesting that the reduction of PAC-pore-blocking macromolecules by coagulation before PAC adsorption was not a key factor in improving the final extent of NOM removal. The mechanism of the enhanced adsorption by micrometre-size PAC seems to involve increases in the adsorption capacity itself, as well as increases in adsorption kinetics.
Skip Nav Destination
Article navigation
Research Article|
December 01 2004
Enhancing an adsorption-membrane hybrid system with microground activated carbon Available to Purchase
Y. Matsui;
Y. Matsui
*Department of Civil Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
Search for other works by this author on:
Y. Fukuda;
Y. Fukuda
*Department of Civil Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
Search for other works by this author on:
T. Inoue;
T. Inoue
*Department of Civil Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
Search for other works by this author on:
T. Matsushita;
T. Matsushita
*Department of Civil Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
Search for other works by this author on:
N. Aoki;
N. Aoki
**Research & Development Department, NGK Insulators, Ltd., Maegata-cho 1, Handa 475-0825, Japan
Search for other works by this author on:
S. Mima
S. Mima
**Research & Development Department, NGK Insulators, Ltd., Maegata-cho 1, Handa 475-0825, Japan
Search for other works by this author on:
Water Supply (2004) 4 (5-6): 189–197.
Citation
Y. Matsui, Y. Fukuda, T. Inoue, T. Matsushita, N. Aoki, S. Mima; Enhancing an adsorption-membrane hybrid system with microground activated carbon. Water Supply 1 December 2004; 4 (5-6): 189–197. doi: https://doi.org/10.2166/ws.2004.0108
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00