Methane emissions reduction from organic wastewater and solid waste co-composting: parameter estimation and sensitivity analysis
by Jotsnah Devi Ramnauth; Ackmez Mudhoo; Romeela Mohee
International Journal of Global Environmental Issues (IJGENVI), Vol. 12, No. 1, 2012

Abstract: Using the approved large scale methodology AM0039 and approved baseline methodology AM0010, an estimated 7,329.04 tCO_2e/yr are typically generated from degradation of organic wastes at the landfill in Mauritius. Baseline emissions for anaerobic degradation of organic wastewaters (OWW) in open lagoons approximated to 36,036 tCO_2e/yr; 402,783.92 tCO_2e/yr for transportation of OWW and municipal solid wastes, 844.29 tCO_2e/yr from fossil fuels and 0.056 tCO_2e/yr for grid electricity consumption. For a specific scenario of parameter values analysed initially, the total baseline emissions (446,993.31 tCO_2e/yr) exceeded the total project emissions (446,074.05 tCO_2e/yr). From a multi-parameter sensitivity analysis, the CO₂ emission factor per unit of energy of the fuel, methane conversion factor of the baseline storage system, monthly chemical oxygen demand available for conversion, total number of samples and grid electricity emission factor during the project situation have been found to influence ERs most.

Online publication date: Thu, 28-Aug-2014

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