Sulfate Reduction and Growth Kinetics of Sulfate Reducing Bacteria While Using Marine Waste Extract as Nitrogen Source

Sulfate reduction and SRB growth kinetics were studied in growth media for SRB (Dev et al., 2014), MSRB containing marine waste extract as nitrogen source with increasing SO4 concentration, such as 1500, 3500, 5500 and 7500 mg L. With increase in SO4 concentration, SO4 reduction rate, its efficiency, SRB specific growth rate, HS generation rate were deteriorated. In the presence of 1500 mg L SO4 concentration, rate and efficiency of SO4 reduction, SRB specific growth rate and HS generation rate were found highest, 99.56%, 94.58 mg/L·h, 0.099 d and 13.03 mg/L·h, respectively. Therefore, 1500 mg L of SO4 concentration was considered optimum to support highest SO4 reduction and SRB activity in MSRB medium.