Unmanaged solid and liquid wastes from rice husk gasification.

This is the backyard of a rice mill in Cambodia. A rice mill is a factory where the rice hulls (or rice husks) are peeled off the grains of rice. This factory uses the husks as a fuel to produce its own electricity: the husks are fed to a gasifier, and the produced gas is fed to a diesel generator. The solid waste on the foreground is husk ash or biochar. The liquid waste in the background is untreated blackwater from the gas cleaning process. Researchers of the Clean Energy and Sustainable Development (CleanED) at the University of Science and Technology Hanoi (USTH) in collaboration with SNV international are studying the sustainability of rice husk gasification in Cambodia, to better understand the conditions for its uptake by rice millers, the market dynamics and the waste treatment possibilities