THE DECREASE OF UV ABSORBENCY AS AN INDICATOR OF TOX FORMATION

Authors
KORSHIN GV LI CW BENJAMIN MM
Citation
Gv. Korshin et al., THE DECREASE OF UV ABSORBENCY AS AN INDICATOR OF TOX FORMATION, Water research, 31(4), 1997, pp. 946-949
Citations number
10
Categorie Soggetti
Engineering, Civil","Environmental Sciences","Water Resources
Journal title
Water research → ACNP
ISSN journal
00431354
Volume
31
Issue
4
Year of publication
1997
Pages
946 - 949
Database
ISI
SICI code
0043-1354(1997)31:4<946:TDOUAA>2.0.ZU;2-2
Abstract
The decrease in UV absorbance (Delta UV) caused by chlorination of NOM correlates linearly with the amount of TOX formed, for a remarkably w ide range of water quality conditions and reaction times. THM formatio n also correlates with Delta UV, but the relationship is more sensitiv e to solution pH and is probably not linear over the entire range of c onditions/times relevant for water treatment. It appears that all Cl-D OC reactions that destroy UV absorbance generate TOX, but substantial amounts of THMs are formed only after a significant amount of reaction has occurred. (C) 1997 Published by Elsevier Science Ltd.