Date of Award
Master of Science in Chemical Engineering - (M.S.)
Chemical Engineering, Chemistry and Environmental Science
Samir S. Sofer
Piero M. Armenante
Barbara B. Kebbekus
The performance of immobilized cells in the treatment of hazardous waste was investigated using a recirculation flow reactor run in a batch mode. A mixed microbial population from a municipal wastewater treatment plant was immobilized in calcium alginate gel. The bio-oxidation ability of these microbes towards a model toxin (2-chlorophenol) was studied. The process parameters studied were as follows:
- Flow rate of the recycle stream;
- Biomass loading;
- Spiking concentration of 2-chlorophenol;
- Use of buffered vs. non-buffered defined medium.
Dissolved oxygen concentration was monitored using a flow Clark-type dissolved oxygen probe. Oxygen consumption was correlated with the biodegradation of 2-chlorophenol. Physical removal of 2-chlorophenol by air stripping in the absence of microorganisms was also determined and the removal rate compared with the biodegradation rate obtained. It was found that biodegradation was the primary removal mechanism.
Yang, Kai-Chung, "Use of recirculation reactor to study biodegradation of 2-chlorophenol" (1988). Theses. 1411.