Record Display for the EPA National Library Catalog
RECORD NUMBER: 21 OF 75
|OLS Field Name||OLS Field Data|
|Main Title||Design of Rapid Small-Scale Adsorption Tests for a Constant Diffusivity.|
|Author||Crittenden, J. C. ; Berrigan, J. K. ; Hand, D. W. ;|
|CORP Author||Michigan Technological Univ., Houghton. ;Zimpro, Inc., Rothschild, WI.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.|
|Additional Subjects||Adsorption ; Beds(Process engineering) ; Sewage treatment ; Tests ; Design criteria ; Removal ; Toxicity ; Waste water ; Mathematical models ; Diffusion ; Performance evaluation ; Particle size ; Chemical analysis ; Comparison ; Pilot plants ; Reprints ; Fixed bed absorbers|
The rapid small-scale column test (RSSCT), a physical model of a fixed bed, was developed and evaluated experimentally to simulate full-scale adsorber performance. The RSSCT can simulate months of full-scale adsorber operation in several days; however, some isotherms and kinetic data are required for design. The dispersed flow, pore surface diffusion model (DFPSDM) was used to determine the proper adsorbent particle size, hydraulic loading, and empty-bed contact time of the RSSCT from the data from the full-scale adsorber. The experimental RSSCT breakthrough profiles for a six-solute mixture at influent concentrations between 3000 and 6000 micrograms/l were identical to those of a pilot-scale column test.