| Main Title |
Oxidation of arsenic (III) by aeration and storage / |
| Author |
Lowry, Jerry D.
|
| Other Authors |
|
| CORP Author |
Lowry Environmental Engineering, Inc., Blue Hill, ME.;National Risk Management Research Lab., Cincinnati, OH. Water Supply and Water Resources Div. |
| Publisher |
National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
2002 |
| Report Number |
EPA/600/R-01/102; EPA-8C-R433-NTSX |
| Stock Number |
PB2002-107100 |
| OCLC Number |
52303375 |
| Subjects |
Arsenic
|
| Additional Subjects |
Drinking water ;
Arsenic ;
Aeration ;
Water treatment ;
Oxidation ;
Ground water ;
Storage ;
Water quality ;
Maine ;
Bubbling ;
Spraying ;
Sites ;
Unity(Maine)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600/R-01/102 |
|
Headquarters Library/Washington,DC |
05/23/2003 |
| ELBD ARCHIVE |
EPA 600-R-01-102 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 600-R-01-102 |
repository copy |
AWBERC Library/Cincinnati,OH |
08/26/2019 |
| NTIS |
PB2002-107100 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ix, 44 pages : illustrations ; 28 cm |
| Abstract |
A study of the effects of aeration and storage on the oxidation of arsenic(III) was undertaken at three utilities in the U.S. to establish the engineering significance of aeration as a potential pre-treatment method for arsenic removal. Aeration has been referred to in the literature as a possible useful pre-treatment method to ensure that arsenic in is the arsenic(V) state before subsequent removal by any of several treatment processes. Since aeration a common process for treating groundwater for iron oxidation, radon, volatile organics, carbon dioxide, and hydrogen sulfide, it is reasonable to investigate its effectiveness for arsenic(III) oxidation. The results of this study clearly establish that aeration and aerobic storage do not oxidize arsenic(III). The major conclusion is that aeration is not effective for this purpose and should not be relied upon or expected to contribute to the oxidation of arsenic(III). One of the test sites in this study clearly showed that arsenic(III) is significantly removed by the oxidation and precipitation of iron, but this should not be attributed to an oxidation of arsenic(III) to arsenic(V) by dissolved oxygen. Past research has established that iron precipitation can be partially effective for the adsorptive removal of arsenic(III), and this is the likely explanation for the apparent drop in arsenic(III) at the site that had high iron. |
| Notes |
"EPA/600/R-01/102." "January 2002." |
