Baggase

Baggase is the fibrous solid waste produced after stalks of sugarcane are crushed to extract sugar juice in the sugar mill. Typically, about 25-30% of sugar cane production is baggase, contributing to about 10.9-22.3 Tg/year (Mt/year) from the sugarcane production of 43.5-74.3 Tg/year (Mt/year) over the period between 1998 and 2007 in Thailand. Currently, almost all of baggase from the sugar mills in Thailand are used up as biomass fuel to generate energy partially for the sugar processing within the mills, leaving negligible amount for other applications. As shown below, more than half of grid biomass power plant in 2007 uses baggase as the fuel.

Since 1994, there are 37 SPPs (Small Power Producers) and VSPPs (Very Small Power

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Producers) operating on baggase with installed capacity over 780 MW with almost 300 MW of which are sold back to the grid. The recent rapid increase in the baggase power plants are due to governmental strong support on electricity generation.

Подпись: Fig. 2.17.3. Biodegradable food container from baggase fiber.

Furthermore, baggase can only be used to produce other value-added products like biodegradable food container (as shown below) and particle board. The baggase residue & ash from power plants can also be compressed to make a construction brick that weighs 3.2 kg/brick, sustains 80-90 kg/cm2 load and costs only 4 Baht/brick (compared to typical construction brick of 5.8 kg, 70 kg/cm2 strength and 8 Baht/brick cost).