This slide presentation outlines a study on the effects of acid/base treatment of activated carbon on Membrane Fouling in PAC-MF Systems. Research objectives included: effects of acid/base treatment on
powdered activated carbon (PAC) surface chemistry;
effects of acid/base treatment of PAC on
adsorption of organic matter and metal; and,
effects of acid/base treatment of PAC on membrane fouling. Methods outlined included: organic matter (NOM) characterization;
functional group (FTIR);
dissolved organic carbon (DOC);
biopolymer composition (P-GC/MS);
PAC characterization;
surface charge: acid/base titration;
functional groups: FTIR;
scanning electron microscopy (SEM);
metal: ICP-AES;
membrane characterization; and,
topography: atomic force microscopy (AFM). Conclusions included:
acid/base treatment remarkably changed surface chemistry
of APAC, and BPAC;
acid/base treatment of PACs affects on adsorption: BPAC
slightly enhanced the adsorption of natural organic matter
(NOM), and APAC significantly enhanced metal adsorption;
chemical-treated PACs reduce membrane fouling in PAC-MF
system; and,
the result suggest that PAC-MF can be applied to increase
permeate quality and control membrane fouling. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.8 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 26 |
| Published : | 06/01/2006 |
