Abstract
A theoretical analysis applicable to packed bed biosorbers subjected to fasting conditions (no loading) and taking into consideration external mass transfer resistance, internal diffusional resistance accompanied by biological reaction (Michaelis-Menten kinetics) and diffusion and adsorption onto activated carbon particles has been developed. The substrate concentration profiles in the various regions show that the response to the fasting perturbation is very fast in the bulk liquid and biofilm while it is extremely slow inside the carbon particles. The concentration level never reaches zero value within the carbon particles during the fasting period and it takes exceedingly long time to obtain the true steady state conditions within the activated carbon particles.
| Original language | English |
|---|---|
| Pages (from-to) | 57-72 |
| Number of pages | 16 |
| Journal | International Journal of Environmental Studies |
| Volume | 54 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1998 |
Bibliographical note
Funding Information:The authors wish to acknowledge the support provided by the King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia.
Keywords
- Activated carbon
- Adsorption
- Biofilm
- Diffusion
- Packed bed
ASJC Scopus subject areas
- Geography, Planning and Development
- Ecology
- Waste Management and Disposal
- Pollution
- Computers in Earth Sciences
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