Bilogical Treatment Of A Wastewater Containing Heavy Metals And Cyanide
Syahril Effendi Pasaribu
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A research is being conducted to study the performance of aerobic biological process in the treatment of a simulated wastewater containing heavy metals and cyanides. Two laboratory scale completely mixed reactors operated in a fill-and-draw mode were used for the study of the simulated wastewater and control. After 54 days of acclimatization period, the significant decrease in MLSS and low reduction in COD values were found in the wastewater containing heavy metals and cyanide due to the occurrence of growth inhibition. The highest and lowest percentages of heavy metals removal of 82.5% and 37.6% were found in copper and cadmium, respectively.