The discharge of untreated wastewater on economically important natural resources such as rivers and seas, and their ecosystems leads to their destruction. The inadequate handling and disposal of sewage lead to health problems.Household sewage generated is causing serious pollution of surface and ground waters. The present on-site systems of sewage disposal do not provide much in the way of treatment. The extremely high cost of high tech systems (activated sludge, oxidation ditches etc.). The use of the generated biogas which can be used in place of LPG and firewood. The need for alternative energy sources