Biological conversion of hydrogen sulfide to elemental sulfur in a suspended-growth continuous stirred-tank reactor

A biological process employing green sulfur bacteria was investigated to remove sulfide (S;A suspended-growth once-through continuous-flow stirred-tank bioreactor was successfully operated under five different experimental conditions. For the first three experiments, concentrated nutrient solution and sulfide stock solution were pumped separately into a 13.7 L reactor at a hydraulic retention time of 45 hours and S;In two more experiments, nutrient medium and S;A parameter was developed to relate the experiments of this dissertation with those reported in the literature, where smaller reactors and higher bacterial concentrations were used in batch reactors fed with ;Three predictive models were developed for the bioreactor. In the yield-based model, a yield coefficient was used to link the increase in bacteriochlorophyll with the consumption of S...