Main Title |
Evaluating the Quality of Water Treated by Redwood Slat Tower Aerators. |
Author |
Fronk-Leist, C. A. ;
Love, Jr, O. T. ;
|
CORP Author |
Municipal Environmental Research Lab., Cincinnati, OH. |
Year Published |
1984 |
Report Number |
EPA-600/D-84-050; |
Stock Number |
PB84-151414 |
Additional Subjects |
Water quality ;
Aerators ;
Water treatment ;
Potable water ;
Chemical analysis ;
Performance evaluation ;
Ground water ;
Inorganic compounds ;
Volatile organic compounds ;
Ethylene/trichloro ;
Ethylene/dichloro
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB84-151414 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
Over a two year period, the U.S. Environmental Protection Agency, Drinking Water Research Division (EPA-DWRD), and two New England water utilities evaluated the water quality from redwood slat tower aerators. Samples of aerator influent and aerator effluent were analyzed for several volatile organic compounds, some of which are being considered for possible regulatory action (1). The two principal organics in the waters were trichloroethylene and cis-1,2-dichloroethylene; the sum of the concentrations ranged from 9 to 300 micrograms per liter micrograms/L). In addition, fourteen inorganic compounds (seven of which have maximum contaminant levels (2)) and three microbiological parameters (standard plate count, total coliforms, and Legionella) were routinely monitored. Precipitation of iron and the subsequent buildup of sludge on the distribution plate inside the aerators at one site decreased the efficiency for removing volatile organic compounds. These experiences underscore the need for routine attention and maintenance on any treatment process. |
PUB Date Free Form |
Jan 84 |
Category Codes |
13B; 68D; 50B |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/14 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
411840904 |
Origin |
NTIS |
Type |
CAT |