Sewage treatment with SBR (India)

Srisailam is located in a picturesque environment of Nallamalai Hills. The abode of Srisaila kshetram is situated on the right side of the river Krishna. The unique feature of this kshetram is the coexisting of Jyothrlinga and SakthiPeetam in one temple premises. At this temple town river Krishna continues to flow through narrow gorge till reaches Nagarjuna Sagar carrying on both the banks intractable forests dotted here and there by small tribal settlements, forming into natural sanctuaries of wild animals. The Srisailam town ship is under the administration of Endowments Department, Government of Andhra Pradesh. The Sewage Treatment Plant proposed at Srisailam is great applicable route to achieve proper treatment of liquid pollution and to protect nature environment. The ground water contamination is considerably reduced after appropriate treatment of wastewater. The wastewater merged with river Krishna causes several hazardous problems to the flora and fauna. By providing sewage treatment plant no more pollution of river Krishna and groundwater at Srisailam temple town is affected. The by-product such as treated sludge is used for improvement of garden in and around the temple town. It is expected that on completion of this project approximately 1 million cubic meters of water is to be saved per year. Based on the parameters to be treated, the sewage treatment plant (STP) has been designed with sequential batch reactor (SBR) technology treatment. Various components of STP with SBR with technology are mechanical and manual screening, grit removal using manual grit removal channel, biological oxidation by SBR basins with decanters, tertiary treatment by dual media filtration system, disinfection by chlorination, and sludge treatment by centrifugation. The SBR system proved capable of treatment of sewage of Srisailam.