With the growing population in rural areas it has become necessary to have an state-of-the-art water treatments plants. The process of removing contaminants from wastewater is known as sewage treatment. Wastewater undergoes several chemical, physical and biological procedures and it results into environmentally safe treated effluent. Sewage treatment also leaves behind by-product that is semi-solid slurry called sewage sludge. This sewage sludge is further processed for the suitable land applications.