Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Trihalomethane precursor removal by the magnesium carbonate process {MICROFICHE}
Author Taylor, J. S. ; Snyder, B. R. ; Ciliax, B. ; Ferraro, C. ; Fisher, A.
Other Authors
Author Title of a Work
Taylor, James S.
CORP Author University of Central Florida, Orlando.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory : Center for Environmental Research Information {distributor},
Year Published 1984
Report Number EPA-R-807704; EPA-600/2-84-090
Stock Number PB84-191147
Subjects Magnesium carbonate ; Drinking water--Standards--Florida--Melbourne
Additional Subjects Water treatment ; Potable water ; Materials recovery ; Coagulation ; Florida ; Disinfection ; Oxidation ; Design criteria ; Performance evaluation ; Halomethanes ; Magnesium carbonate process ; Waste recycling ; Color removal ; Sludge disposal ; Melbourne(Florida)
Library Call Number Additional Info Location Last
NTIS  PB84-191147 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 306 p. : ill. ; 28 cm.
A project was conducted to determine and improve the ability of the magnesium carbonate process to remove trihalomethane (THM) precursors in treated drinking water. The project was conducted at a drinking water treatment plant in Melbourne, FL, which had been developed and installed in the early 1970's (before THM regulation) to reduce the sludge produced from water treatment. The process involved recovering the magnesium bicarbonate from the sludge by carbonation, reusing the Mg(HCO3)2 liquor for coagulation, recalcining the remaining CaCO3 solids and reusing the recovered CaO for pH control during coagulation. The project consisted of seven phases: jar test, recycle recovery, oxidation, THMFP model development, distribution system, alternative disinfectant, and granular activated carbon. The process was not recommended for potable water treatment with a highly colored (organic) surface water source because of the inherent problem of the formation of high concentrations of THM's. This occurred when large doses of chlorine were required to remove the color remaining in the water following the process.
Caption title. Distributed to depository libraries in microfiche. "May 1984." "EPA-600/3-84-090." Microfiche.