| Main Title |
Investigation of means for controlled self-destruction of pesticides / |
| Author |
Sweeny, Keith H., ;
Fischer, James R.
|
| Other Authors |
|
| CORP Author |
Aerojet-General Corporation. Environmental Systems Division. |
| Publisher |
United States Environmental Protection Agency, Water Quality Office, |
| Year Published |
1970 |
| Report Number |
EPA 16040-ELO-06-70 |
| OCLC Number |
00146865 |
| Subjects |
DDT (Insecticide) ;
Insecticides--Biodegradation
|
| Additional Subjects |
DDT (Insecticide) ;
Insecticides--Biodegradation
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 16040-ELO-06-70 |
c.1 |
Headquarters Library/Washington,DC |
05/12/2014 |
| ELBD ARCHIVE |
EPA 16040-ELO-06-70 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 16040-ELO-06-70 |
repository copy |
AWBERC Library/Cincinnati,OH |
06/26/2018 |
|
| Collation |
iv, 128 pages : illustrations, figures, tables ; 28 cm. |
| Notes |
"June 1970." U.S. Environmental Protection Agency Contract No. Contract Number: 14-12-596." Includes bibliographical references (pages 110-114). |
| Contents Notes |
Laboratory studies demonstrated the feasibility of controlled destruction of chlorinated pesticides such as DDT. The concept comprised (1) means to degrade DDT to a harmless form, and (2) methods to delay the reaction for given pest-control action. Chemical methods for degrading DDT were screened and reduction was selected as the most promising technique. Destruction of DDT, without forming DDE as a product, was demonstrated in laboratory studies by mildly acidic reduction with zinc powder. The principal product is bis(p-chlorophenyl) ethane, DDT with all three aliphatic chlorines removed; a material stated to be "void of the neurotoxic effects of DDT." Catalysis of the reaction resulted in complete destruction of DDT in 1 hr at 25ÀC and conversion to bis(chlorophenyl) ethane in 4-8 hrs. Catalyzed aluminum or iron reduction of DDT produced tetra(p-chlorophenyl)tetrachlorobutane, reportedly lipoid insoluble. A 90% destruction of DDT in soil in 4 days was demonstrated in a laboratory test with spray-applied integral, catalyzed zinc-DDT particles (5-micron). Reaction delay can be achieved with wax or silicone coatings on the reductant which are slowly dissolved or eroded, or possibly slow air oxidation of sulfur. Coatings were produced which stopped zinc-acid reaction. A test of combined reductant - delayed action technique was made using silanized, catalyzed zinc (5 microns)-DDT particles sprayed onto soil. Although faulty coating prevented the desired delay, 95% decomposition of DDT was obtained. Effective reductive degradation of the chlorinated pesticides dieldrin, endrin, aldrin, chlordane, toxaphene, Kelthane, methoxychlor, Perthane and lindane, and selected polychlorinated biphenyls was shown. Degradation of DDT in water was demonstrated, a 421 mg/l DDT suspension being reduced to 1 ppm after 1 hr reaction at 75ÀC. |
| Place Published |
Washington |
| Access Notes |
Also issued online. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Water Quality Office.; Aerojet-General Corporation. Environmental Systems Division. |
| Title Ser Add Ent |
Water pollution control research series. |
| PUB Date Free Form |
1970 |
| Series Title Traced |
Water pollution control research series |
| Series Title Untraced |
Water pollution control research series |
| BIB Level |
m |
| Document Type |
BC |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| LCCN |
79611508 |
| Merged OCLC records |
704051514 |
| OCLC Time Stamp |
20180622074407 |
| Language |
eng |
| SUDOCS Number |
EP 2.10:16040 ELO 06/70 |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
04399cam 2200541 45010 |
