| Main Title |
Sorption of Hydrophobic Pollutants on Natural Sediments. |
| Author |
Karickhoff, Samuel W. ;
Brown, David S. ;
Scott, Trudy A. ;
|
| CORP Author |
Environmental Research Lab., Athens, GA. |
| Year Published |
1978 |
| Report Number |
EPA/600/J-79/005; |
| Stock Number |
PB-294 857 |
| Additional Subjects |
Hydrocarbons ;
Chlorine organic compounds ;
Sediments ;
Concentration(Composition) ;
Ponds ;
Rivers ;
Sorption ;
Chemical analysis ;
Laboratory equipment ;
Water pollution ;
Sediment-water interfaces ;
Water pollution detection ;
Reprints
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-294 857 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
10p |
| Abstract |
The sorption of hydrophobic compounds (aromatic hydrocarbons and chlorinated hydrocarbons) spanning a concentration range in water solubility from 500 parts per trillion (ppt) to 1800 parts per million (ppm) on local (North Georgia) pond and river sediments was investigated. The sorption isotherms were linear over a broad range of aqueous phase pollutant concentrations. The linear partition coefficients (K(p)) were relatively independent of sediment concentrations and ionic strength in the suspensions. The K(p)'s were directly related to organic carbon content for given particle size isolates in the different sediments. On an organic carbon basis (K(oc)=K(p)/fraction organic carbon), the sand fraction (> 50 micrometers particle size) was a considerable less effective sorbent (50-90% reduction in K(oc)) than the fines fraction (< 50 micrometers particles). Differences in sorption within the silt and clay fractions were largely related to differences in organic carbon content. Reasonable estimates of K(oc)'s can be made from octanol/water distribution coefficients, which are widely catalogue or easily measured in the laboratory. |
| Supplementary Notes |
Pub. in Water Research, v13 n2 p241-248 1979. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Sorption of Hydrophobic Pollutants on Natural Sediments. |
| PUB Date Free Form |
4 Sep 78 |
| Category Codes |
7D; 68D; 99A |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323760514 |
| Origin |
NTIS |
| Type |
CAT |
