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Thailand: TSM Bio Energy Wastewater Management and Methane Capturing for Electricity Project
(Spanish Carbon Fund)

TSM Bio Energy Wastewater Management and Methane Capturing for Electricity (hereafter, the “Project”) developed by TSM Bio Energy Co. Ltd., (hereafter referred to as the “Project Developer”) is an anaerobic digestion and biogas generation project in Kanchanaburi Province, Thailand (hereafter referred to as the “Host Country”). The project development objective is to reduce greenhouse gas (GHG) emissions through: (i) the capture of methane emissions from the wastewater treatment system at the ethanol plant; and (ii) the use of methane as a fuel to generate electricity which will displace electricity from the national grid that is dominated by fossil fuel power plants.

Project Photo 2
TSM Bio Energy Co. Ltd was established on November 27, 2007 as a subsidiary company of Thai Sugar Mill group. TSM Bio Energy has been contracted by Thai Sugar Ethanol Co. Ltd., (TSE) to manage and treat wastewater from TSE ethanol facility. TSE Plant produces 100 m3/day of ethanol from molasses. TSE produces approximately 600 m3/day of vinasse Vinasse is a final by-product of the sugar industry. Sugarcane is processed to produce crystalline sugar, pulp and molasses. The latter are further processed by fermentation to alcohol or ascorbic acid and other products, after the removal of the desired product the remaining material is called vinasse. after evaporation. This vinasse is transported to nine open anaerobic lagoons 60 kilometres away from the ethanol plant, and then this wastewater is used for irrigation in nearby sugarcane plantations and mixed with bagasse for composting.

The project will upgrade the existing anaerobic open lagoon system into modified covered lagoon system Modified Cover Lagoon System (MCLS) is a modification of conventional covered anaerobic lagoon. It has been constructed with an internal recirculation piping network functioning as a mixing and wastewater feed distribution system. The biogas generated will be store under the plastic sheet that covers the digester. The biogas generated is ready to be use. The sludge will be pump out and use as soil conditioner. The treated wastewater will be drained out through outlet pipe without back flow to the inlet pipe. (MCLS) to capture the methane and use it to produce electricity. Total emission reductions from the project activity are expected to be 148,638 tCO2e per year. The existing open anaerobic lagoons will be used as secondary treatment system, for the proposed project activity.

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