Main Title |
Investigation of the Orion Research Cyanide monitor / |
Author |
O'Herron, Robert J.,
|
CORP Author |
National Environmental Research Center, Cincinnati, Ohio. |
Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1975 |
Report Number |
EPA-670/4-75-005; EPA-ROAP-01AAD |
Stock Number |
PB-241 802 |
OCLC Number |
02006600 |
Subjects |
Cyanides ;
Cyanide process
|
Additional Subjects |
Cyanides ;
Monitors ;
Metal complexes ;
Performance evaluation ;
Laboratory tests ;
Field tests ;
Industrial wastes ;
Ion selective electrodes ;
Water pollution detection
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 670-4-75-005 |
|
Headquarters Library/Washington,DC |
12/31/2014 |
ELBD ARCHIVE |
EPA 670-4-75-005 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 670-4-75-005 |
|
AWBERC Library/Cincinnati,OH |
04/07/2022 |
NTIS |
PB-241 802 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vi, 25 pages : illustrations ; 27 cm |
Abstract |
The model 1206 Orion Research cyanide monitor was investigated using the Orion specifications and environmental considerations as a guide. Laboratory tests under controlled environmental conditions showed the electronic stability (drift) to be within 0.1% over the temperature range of 5C to 35C. Sensor stability, over the temperature range 5C to 35C was tested by applying free cyanide ion (standard solutions of 1 mg/l and 10 mg/l) as direct input to the monitors. Dynamic on-stream measurements were made from a metal plating process rinse stream in a field installation of the monitor, and these measurements were periodically compared with those of the standard method for total cyanide. This field installation revealed the comparisons were widely variable. Steady-state comparisons were made of field-collected samples with the standard method for determining total cyanide. These tests revealed that a 15% to 20% loss in cyanide concentration resulted from the required straining and filtering of the sample input to the monitor. |
Notes |
"Program element no.1HA327." Includes bibliographical references (page 24). |