Provide PDF Format
AWWA WQTC69228
- Removal of MIB/Geosmin Using Granular Activated Carbon with and without MIEX Pretreatment
- Conference Proceeding by American Water Works Association, 11/01/2008
- Publisher: AWWA
$12.00$24.00
This powerpoint presentation begins by providing a brief overview of the MIEX dissolved organic carbon (DOC) process, and the Mt. Pleasant Water Treatment Plant, located near Adelaide, South Australia. The benefits of MIEX are presented, along with both conventional and microfiltration pilot plants. Granular activated carbon (GAC) evaluation is provided, along with DOC and MIB/geosmin removal. Presentation conclusions on contaminant removal indicate the following:MIEX does not appear to affect adsorption capacity ofGAC for removal of algal metabolites in initial adsorptionmode of GAC;impact of biodegradation of MIB/geosmin in GAC filtersis greater than the impact of MIEX pretreatment;prechlorination impacts strongly on performance ofGAC filters with short EBCT;pre-chlorination results in lower bacterialnumbers after conventional treatment (at least initially); and,increasing GAC contact time compensates for lack ofbiological degradation. Includes tables, figures.