Production of biosurfactants in batch reactor for food waste composting

Biosurfactants produced by microbial activities may potentially enhance solid waste composting. A study was performed to characterize the production of biosurfactants and the enhancement of food waste composting process in a batch reactor. Production of biosurfactants was examined on the basis of surface tension values. Experimental results indicated that biosurfactants could be produced by microorganisms during composting and enhance microbial activities of food waste. After separated from food waste, the produced biosurfactants were degraded by microorganisms naturally within 24 hours. Based on experimental results, certain relationship between surfactants and composting progress was also disclosed.