Reduced reserves of fossil fuels, global warming issue, population growth rates and consumptive lifestyles trigger awareness of the need to utilize alternative energy sources as a substitute for the use of fossil fuels. The carbon compounds contained in wastewater sludge is one of the materials that has the potential to be an alternative energy source if managed with proper method. In relation to this, the main objective of this research is to identify the prospect of several technologies to treat organic sludge in terms of mass reduction and energy recovery as a basis for feasibility study and further development. Simulations carried out on wastewater sludge from Jababeka’s centralized wastewater treatment facilities showed that thermochemical processing methods were quite effective in reducing sludge mass. Reduction of mass occurs due to the decomposition of carbon compounds resulting in changes in the size of sludge particles. In addition, green energy produced can also be used to fulfill some needs in treatment facilities and can be a substitute for the use of fossil fuels. Overall, based on the results of the feasibility study simulation, it can be concluded that the thermochemical processing method can be further considered to develop into the pilot scale.
Part of the book: Renewable Resources and Biorefineries