Record Display for the EPA National Library Catalog


Main Title Evaluation of lime precipitation for treating boiler tube cleaning wastes /
Author Rogoshewski, P. J. ; Carstea, D. D.
Other Authors
Author Title of a Work
Carstea, D. D.
CORP Author Hittman Associates, Inc., Columbia, MD.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory ; National Technical Information Service [distributor],
Year Published 1980
Report Number EPA 600-7-80-052; EPA-68-02-2684
Stock Number PB80-216724
OCLC Number 08362834
Subjects Complex compounds ; Sewage--Environmental aspects
Additional Subjects Water pollution control ; Calcium oxides ; Boiler tubes ; Waste water ; Sampling ; Clarification ; Polymers ; Solutions ; Chemical cleaning ; Ammonium halides ; Hydrochloric acid ; Formic acid ; Citric acid ; EDTA ; Chelation ; Concentration(Composition) ; Iron ; Copper ; Nickel ; Zinc ; Hydrochloric acid/thio-urea ; Acetic acid/hydroxy
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-80-052 Headquarters Library/Washington,DC 07/03/2013
EJBD  EPA 600-7-80-052 Headquarters Library/Washington,DC 09/28/2018
EKBD  EPA-600/7-80-052 Research Triangle Park Library/RTP, NC 01/16/2004
ESAD  EPA 600-7-80-052 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-216724 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 103 pages : illustrations ; 28 cm.
The report gives results of an evaluation of lime precipitation for treating boiler tube cleaning wastes. In this project, wastewater samples were collected from six boiler tubeside chemical cleanings, using complexing and chelating agents. The samples represented: (1) ammoniacal bromate/hydrochloric acid, (2) thiourea-hydrochloric acid, (3) hydroxyacetic-formic acid, (4) ammoniated citric acid, and (5) ammoniated EDTA cleaning systems. Wastewater samples were also collected from boiler fireside and air preheater washes. A treatment methodology was investigated that involved: dilution of the boiler tubeside cleaning wastewater with a mixture of the fireside and air preheater wash wastewaters, precipitation with lime, and addition of polymers for clarification. After settling of the solids, the supernatant was analyzed for total and dissolved iron, copper, nickel, zinc, and total suspended solids. Major variations in testing included adjustments in pH and dilution ratio. Results indicate that, on a bench scale, the treatment methodology effectively reduced the concentration of iron, copper, and zinc in the tubeside cleaning wastewater to < 1 mg/l. Attainable nickel residuals were also < 1 mg/l for wastes from all except the ammoniated EDTA system, for which nickel residuals were not < 5 mg/l.
"Hittman Associates, Inc." "March 1980." "EPA 600-7-80-052." Cover title. Includes bibliographical references. "Contract no. 68-02-2684, program element no. INE624A."