| Main Title |
Microbial Degradation of Organic Pollutants of Industrial Origin. |
| Author |
Gunne, Haim B. ;
|
| CORP Author |
Massachusetts Univ., Amherst. |
| Year Published |
1970 |
| Report Number |
DI-14-31-0001-3021; OWRR-A-020-MASS; 01898,; A-020-MASS(4) |
| Stock Number |
PB-195 982 |
| Additional Subjects |
( Diazion ;
Water pollution) ;
( Water pollution ;
Insecticides) ;
( Biodeterioration ;
Insecticides) ;
( Ecology ;
Insecticides) ;
Hydrolysis ;
pH ;
Industrial wastes ;
Toxicity ;
Phosphorus organic compounds ;
Worms ;
Protozoa ;
Tubificidae ;
Phosphorothioates
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-195 982 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12p |
| Abstract |
The disappearance of Diazinon was compared in sterile and non-sterile water systems. Chemical hydrolysis was pH related. Kinetic studies showed the maximum hydrolysis rate at pH 3.5 with the minimum at neutrality. The presence of metals, particularly copper, enhanced hydrolysis. Maximum hydrolysis was achieved in the presence of native microflora and under natural systems. These are shown to be the primary agents in the degradation of the Diazinon molecule. Diazinon and its derivatives were found to effect a profound and sustained disequilibration in microbial ecosystems. The basis of this population selection was found to be the selective inhibition of susceptible populations by Diazinon in their dissimilation of a wide range of carbon substrates. Studies of population interactions between higher plants and microflora established that the rhizosphere effect hitherto reported only for terrestrial plants applies equally to an aquatic milieu. Studies with anaerobic microflora showed that Diazinon was nutritionally inaccessible as a carbon source and in addition was an inhibitory agent. (Author) |
| NTIS Title Notes |
Project completion rept.. |
| PUB Date Free Form |
15 Oct 70, |
| Category Codes |
6F; 13B; 68D; 57P |
| NTIS Prices |
PC A02 MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326514552 |
| Origin |
NTIS |
| Type |
CAT |
