Biodegradation of Municipal Wastewater with Local and Commercial Bacteria

This study was undertaken to evaluate the degradation of synthetic and real municipal wastewater by commercial bacteria known as SludgeHammer bacteria and some local isolated strains. TOC removal efficiencies in the synthetic wastewater were 70%, 54%, 52%, 42% for the SludgeHammer, B. subtilis, B. laterosponus and P. aeruginosa, respectively. TOC degradation experiments using municipal wastewater found that the mixed bacteria culture of selected strain of B. subitlis and P. aeruginosa increased treatment performance by 6 to 16% higher than other strains. However, they took relatively longer time to reach the maximum degradation rate compared to the SludgeHammer bacteria.