| Main Title |
Effect of pH, DIC, orthophosphate, and sulfate on drinking water cuprosolvency |
| Author |
Schock, Michael R. ;
Lytle, D. A. ;
Clement, J. A.
|
| Other Authors |
|
| CORP Author |
National Risk Management Research Lab., Cincinnati, OH. ;Black and Veatch, Inc., Cambridge, MA. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory ; |
| Year Published |
1995 |
| Report Number |
EPA/600/R-95/085 |
| Stock Number |
PB95-269270 |
| OCLC Number |
34595089 |
| Subjects |
Drinking water--Copper content
|
| Additional Subjects |
Drinking water ;
Copper ;
Water pollution control ;
Corrosion ;
Water pipes ;
Field studies ;
Solubility ;
Concentration(Composition) ;
Models ;
Corrosion prevention ;
Complex compounds ;
Inorganic phosphates ;
Carbonates ;
Sulfates ;
Water treatment ;
pH ;
Chemical reactions ;
Thermodynamics ;
Cuprosolvency
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELBD RPS |
EPA 600-R-95-085 |
repository copy |
AWBERC Library/Cincinnati,OH |
05/04/2020 |
| ELBD |
EPA 600-R-95-085 |
|
AWBERC Library/Cincinnati,OH |
12/01/2000 |
| NTIS |
PB95-269270 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
X, 95 p. : graphs, tables ; 28 cm. |
| Abstract |
Field data from various copper monitoring studies and Lead and Copper Rule compliance data are often inappropriate and misleading for reliably determining fundamental chemical relationships behind copper corrosion control. A comprehensive solubility model for copper in drinking water has been developed, that is consistent with available data for copper dissolution and precipitation. The concentration of Cu(I) is dominated by Cu2O(s) or CuOH(s) solid phases, plus soluble aqueous ammonia and chloride complexes. Utilities may choose to add DIC for buffering of pH, raising copper to some degree. Sufficient orthophosphate may reduce cuprosolvency below pH 8. Sulfate may either lower cuprosolvency under some conditions, or interfere with oxide/hydroxide passivation above about pH 8. Dissolved oxygen and chlorine residual influence copper stagnation profiles. |
| Notes |
"EPA/600/R-95/085." "June 1995." "Project officer, Michael R. Schock." Includes bibliographical references. |
