| Main Title |
Correlations for the determination of surface diffusivities of organic chemicals adsorbed onto granular activated carbon / |
| Author |
Dobrzelewski, Mark.
|
| CORP Author |
Michigan Technological Univ., Houghton.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. |
| Publisher |
Water Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1986 |
| Report Number |
EPA/600/2-86/082 |
| Stock Number |
PB87-102273 |
| OCLC Number |
17003907 |
| Subjects |
Water--Purification--Organic compounds removal
|
| Additional Subjects |
Potable water ;
Diffusion ;
Activated carbon ;
Surface chemistry ;
Toluene ;
Beds(Process engineering) ;
Mass transfer ;
Adsorption ;
Thesis ;
Water pollution control ;
Volatile organic compounds ;
Ethylene/trichloro ;
Ethylene/tetrachloro ;
Ethylene/dichloro
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELBD ARCHIVE |
EPA-600-2-86-082 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB87-102273 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xiv, 147 leaves : ill. ; 28 cm. |
| Abstract |
Differential column batch reactor (DCBR) experiments in organic-free water were conducted for the following volatile organic compounds (VOCs): trichloroethene, tetrachloroethene, cis-1,2 dichlorethene, and toluene. Surface diffusion was required to explain the rate of uptake for the VOCs, and the contribution of pore diffusion was determined to be negligible. Since considerable time is required to conduct a DCBR study, a correlation was developed for the surface diffusion based on the liquid diffusivity of the adsorbates and the physical properties of the activated carbon. The correlation can be used to calculate the surface diffusivities of halogenated one- and two-carbon molecules and some aromatic substituted organic compounds for two types of carbons. The significance of the correlation is that it can be used to calculate the mass transfer zone lengths of VOCs in a fixed-bed adsorber with a fair amount of precision. |
| Notes |
"September 1986." |
