Continuous removal of both mutagens and mutagen-forming potential by an experimental full-scale granular activated carbon treatment system

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00134a005· OSTI ID:5610384

Loper, J C; Tabor, M W; Rosenblum, L; DeMarco, J

Trends in the removal of mutagens and of total organic carbon (TOC) were measured for granular activated carbon (GAC) in use at the Cincinnati Water Works. Fourteen sets were analyzed, one set for each of the first 3 weeks beginning Nov 29, 1982, and 11 others at 2 to 4-week intervals during the next 32 weeks. Sample points per set were settled river water, chlorinated sand filtered water, GAC-treated water, water from these two latter points stored 3 days in the presence of a free chlorine residual, and distributed water. Residues were extracted by using XAD-2 resin and bioassayed by using the Ames test strains TA98 and TA100. No mutagens were detected from the settled water, so the great majority of mutagens entering GAC treatment, and GAC effluent was greatly reduced in its potential to form mutagens upon rechlorination, even when the GAC was used several months beyond normal use for TOC removal. Analyses of residues extracted from the used GAC also indicated the efficient removal of water-borne mutagens.

• Research Organization: Univ. of Cincinnati, OH
• OSTI ID: 5610384
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 19:4; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
BIOASSAY
CARBON
DRINKING WATER
ELEMENTS
ENVIRONMENTAL QUALITY
FILTERS
HYDROGEN COMPOUNDS
MUTAGENS
NONMETALS
OXYGEN COMPOUNDS
POLLUTION
REMOVAL
SORPTION
WATER
WATER POLLUTION
WATER QUALITY
WATER SUPPLY
WATER TREATMENT