ENRICHED BIOGAS GENERATION BY CO-DIGESTION OF WASTE ACTIVATED SLUDGE AND MUNICIPAL SOLID WASTE BY SONOLYSIS IN MALAYSIAMd. Nurul Islam Siddique, Zaied Bin Khalid and Mohd. Zamri Bin Ibrahim
The present work evaluates the efficiency of sonolysis for improving the co-digestion of the municipal solid waste and waste activated sludge and therefore enhanced the biogas generation. Bio-methane production of solid waste co-digestion was tremendously affected by wastewater availability. Organic matter solubilization tests were performed under different states of ultrasound treatment. Outcomes showed that sonolysis could considerably increase the solubilization of organic matters, hence providing significant biogas generation from co-digestion of sonicated wastewaters. At the end of 40 days, the biogas generated from the co-digestion operation for the sonicated one was 25% greater than the controlled one. Therefore, it can be concluded that the proper application of this green technology can develop clean energy production from solid waste.