Main Title |
Chlorine Dioxide for Wastewater Disinfection: A Feasibility Evaluation. |
Author |
Roberts, Paul V. ;
Aieta, E. Marco ;
Berg, James D. ;
Chow, Bruce M. ;
|
CORP Author |
Stanford Univ., CA. Dept. of Civil Engineering.;Municipal Environmental Research Lab., Cincinnati, OH. |
Year Published |
1981 |
Report Number |
EPA-R-805426; EPA-600/2-81-092; |
Stock Number |
PB81-213357 |
Additional Subjects |
Water treatment ;
Disinfection ;
Chlorine oxides ;
Feasibility ;
Coliform bacteria ;
Reaction kinetics ;
Virus ;
Halogen organic compounds ;
Cost analysis ;
Microorganisms ;
Chlorination ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB81-213357 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
159p |
Abstract |
Chlorine dioxide was compared with chlorine for the disinfection of wastewater in laboratory experiments. Disinfection with chlorine dioxide was also demonstrated at a full-scale wastewater treatment plant. Criteria for comparison included coliform kill, inactivation of poliovirus and other indicators, and formation of halogenated organic by-products. In general, chlorine dioxide accomplished a given fractional kill of total coliforms with a smaller product (residual x time) than chlorine. The required mass doses of the disinfectants were approximately equal for treating conventional activated-sludge effluent. The required dose of chlorine was approximately 2 to 10 times greater than that of chlorine dioxide for treating filtered, nitrified effluent, depending on the coliform standard. Chlorine dioxide was found to be more effective for inactivating Polio-virus I and natural populations of coliphage in both non-nitrified and filtered, nitrified wastewater effluents. Chlorine dioxide treatment formed no measurable amounts of trihalomethane by-products, whereas chlorine treatment formed 0.5 to 5 micro Mol per liter of trihalomethanes, chiefly chloroform, in experiments using wastewater effluents. Based on a total coliform standard of 1000 per 100 ml disinfection with chlorine is estimated to cost 0.3 to 1.7 cents per cu m (1.1 to 6.4 cents per 1000 gallons), depending on plant size, compared with 1.5 to 3.5 cents per cu m (5.8 to 13.4 cents per 1000 gallons) for disinfection with chlorine dioxide (1979 price levels). |
NTIS Title Notes |
Final rept. Sep 77-Jun 80. |
PUB Date Free Form |
Jun 81 |
Category Codes |
13B; 68D |
NTIS Prices |
PC A08/MF A01 |
Primary Description |
600/14 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323799943 |
Origin |
NTIS |
Type |
CAT |