Record Display for the EPA National Library Catalog

RECORD NUMBER: 4642 OF 4951

OLS Field Name OLS Field Data
Main Title The use of pH and chloride electrodes for the automatic control of flue gas desulfurization systems /
Author Ung, Clinton. ; Acciani, Toby ; Maddalone., Ray
Other Authors
Author Title of a Work
Acciani, Tobias Ralph,
Maddalone, Ray F.
CORP Author TRW Defense and Space Systems Group, Redondo Beach, CA.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory,
Year Published 1979
Report Number EPA 600/2-79/202
Stock Number PB80-138464
OCLC Number 40198228
Subjects Flue gases--Desulfurization. ; Air--Pollution.
Additional Subjects Electrodes ; pH ; Chlorides ; Corrosion prevention ; Flue gases ; Automatic control ; Monitoring ; Air pollution control equipment ; Concentration(Composition) ; Performance evaluation ; Surveys ; Flue gases desulfurization
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=91018F2Q.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EHAM  EPA 600/2-79/202 Region 1 Library/Boston,MA 05/25/2016
EJAD  EPA 600/2-79-202 Region 3 Library/Philadelphia, PA 06/16/2000
EJBD ARCHIVE EPA 600-2-79-202 Headquarters Library/Washington,DC 02/03/2014
EJBD  EPA 600-2-79-202 c.1 Headquarters Library/Washington,DC 04/02/2014
EKAM  EPA 600/2-79/202 Region 4 Library/Atlanta,GA 11/06/1998
EKBD  EPA-600/2-79-202 Research Triangle Park Library/RTP, NC 07/04/2003
ESAD  EPA 600-2-79-202 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-138464 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation iv, 73 pages ; 28 cm.
Abstract
The report gives results of a study to determine the applicability of chloride and pH electrodes in automated control systems. It included a survey of chloride and pH electrodes in different flue gas desulfurization (FGD) systems and an evaluation of an industrial pH electrode system. The survey showed that chloride ion measurements were necessary only where high chloride values correspond with FGD unit corrosion and when chloride values were used as correction factors in pH calculations. Chloride ion measurements are unnecessary for most of the surveyed companies. All surveyed companies use pH measurements to control scaling or to attain optimum performance in FGD units. The most common pH electrode problem was residue buildup (scaling) around the electrode, caused by the use of non-self-cleaning (standard) pH electrodes. The performance of self-cleaning and standard industrial pH electrodes was evaluated.
Notes
"EPA-600/2-79-202." EPA contract no. 68-02-2165, task no. 220, program element no. INE624 ; EPA project officer: Frank E. Briden. Reference: page 30.