Detail of "5589-96-8"

Reference

Impact of blending reuse and lake water on treated water quality

All Rights Reserved. Impact of blending reuse and lake water on treated water quality. Comerton, Anna M.; Andrews, Robert C.; Bagley, David M. ( Department of Civil Engineering, University of Toronto, Toronto, ON M5S 1A4, Can.). Journal of Environmental Engineering and Science, 5(4), 359-363 (English) 2006 National Research Council of Canada. CODEN: JEESAX. ISSN: 1496-2551. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s): 10 The impact of supplementing a raw drinking water source with reuse water was examd. Reuse water produced from municipal wastewater by a membrane bioreactor and reverse osmosis (MBR-RO) system was blended with untreated Lake Ontario water, then subjected to conventional water treatment processes, and evaluated in terms of disinfection byproducts (DBPs), nitrate, and coliforms.Several substances with their cas registry numbers 79-43-6 and 5589-96-8 may be metioned in this study. The addn. of reuse water to the lake water improved water quality in terms of total org. carbon (TOC) and bromide, which resulted in reduced trihalomethane (THM) formation. This appeared to be entirely due to diln. with no specific impact from the conventional treatment process. Nitrate levels in the reuse water (1.4 mg/L) were higher than the lake water (0.4 mg/L) and, therefore, an increase in the reuse water : lake water blend ratio resulted in a linear increase in nitrate levels. The conventionally treated blend water was shown to meet typical drinking water regulations for THMs, haloacetic acids (HAAs), total coliform, and nitrate. .

Kinetics of dihaloacetic acid formation during chloramination

All Rights Reserved. Kinetics of dihaloacetic acid formation during chloramination. Pope, Phillip G.; Speitel, Gerald E., Jr.; Collins, M. Robin (Department of Civil, Architectural, and Environmental Engineerign, University of Texas, Austin, TX, USA). Journal - American Water Works Association, 98(11), 107-120 (English) 2006 American Water Works Association. CODEN: JAWWA5. ISSN: 0003-150X. DOCUMENT TYPE: Journal CA Section: 61 (Water) Batch expts. 631-64-1 and 5589-96-8 are cas registry numbers of chemicals which are used as reagents here. were conducted on both source and treated water from 4 locations to study the kinetics of dihaloacetic acid (X2AA) formation during chloramination. The effect of treatment, pH, bromide concn., and periods of free chlorination on X2AA formation kinetics was examd. Bromine-substituted X2AA, i.e., bromochloroacetic acid and dibromoacetic acid, formed more rapidly than did dichloroacetic acid; short periods of prechlorination (5-20 min) significantly increased haloacetic acid (HAA) formation. This research demonstrates that most X2AA formation occurs within water treatment facilities that prechlorinate before chloramination; therefore, HAA control strategies in such plants should focus on the chlorination step. .