Main Title |
Evaluation of lime precipitation for treating boiler tube cleaning wastes / |
Author |
Rogoshewski, P. J. ;
Carstea, D. D.
|
Other Authors |
|
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 |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
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 |
ELBD ARCHIVE |
EPA 600-7-80-052 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
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. |
Abstract |
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. |
Notes |
"Hittman Associates, Inc." "March 1980." "EPA 600-7-80-052." Cover title. Includes bibliographical references. "Contract no. 68-02-2684, program element no. INE624A." |
Place Published |
Research Triangle Park, NC Springfield, Va. |
Access Notes |
Also available via the World Wide Web. |
Corporate Au Added Ent |
Industrial Environmental Research Laboratory (Research Triangle Park, N.C.); Hittman Associates. |
Title Ser Add Ent |
Research reporting series. Interagency energy-environment research and development ; EPA-600/7-80-052. |
PUB Date Free Form |
1980 |
Series Title Untraced |
Interagency energy/environment R&D program report ; EPA-600/7-80-052 |
NTIS Prices |
PC A06/MF A01 |
BIB Level |
m |
Cataloging Source |
OCLC/T |
OCLC Time Stamp |
20130628112014 |
Language |
eng |
SUDOCS Number |
EP 1.23/8:600/7-80-052 |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
01621cam 2200361Ia 45020 |