Some people regard water hyacinth plants harmful weed speciesas well as useless. Apparently, the water hyacinth could be as anew alternative fuel for cooking. Currently there have been some who take advantage of the biogas plant's Latin name Eichhornia crassipes.
Several people claimed the biogas is more efficient than LPG because its manufacture does not require a fee. The fire resulting from water hyacinth biogas as great as LPG and can be used forculinary purposes. Gas-making process starts by cutting the stems and leaves ofwater hyacinth. After that, pieces of water hyacinth is inserted intothe reactor tube made of two drums joined together. This process takes seven days to produce gas from the decay of water hyacinth.So, for seven days, the gas from decaying water hyacinth will flowinto the second reactor tubes to then be stored in special tubes. So the gas is depleted, the tube fermentation capacity power of 80 kilograms is charged at regular intervals. A total of 30 kilograms of water hyacinth in the fermentation drum, can only be used within a day. Especially, when used on an ongoing. use of alternative fuels from water hyacinth is expected to save the use offuel oil and LPG in excess.