JANUARY 202319conforming to pollution control norms. SPML Infra has built plants that are fully equipped with automated control systems and reliable technology for efficient treatment, operation, and maintenance. With a rich legacy of four decades, it has proven domain expertise to provide water and wastewater management services across the country.Some of the significant wastewater treatment plants constructed by SPML Infra Limited include:· 240 MLD Sewage Treatment Plant in 4 modules of 60 MLD each with each module having itsprimary & secondary treatment section plus sludge thickening & digestion facilities in Ahmedabad, Gujarat. Common facilities for disinfection of biologically treated water, biogas collection & flaring, supernatant/filtrate collection & recirculation system, collection of digested sludge & digested sludge dewatering system along with common chemical preparation & dosing facilities were created in this project. · 72 MLD Sewage Treatment Plant in Okhla, Delhi based on activated sludge process with gas mixing technology complete with gasholder and compressor to generate energy. · SPML Infra also contributed to the prestigious XIX Commonwealth Games held in Delhi in 2010 by constructing a 25 MGD (million gallons per day) effluent pumping station (EPS) including twin transmission mains for carrying 33.34 MGD treated effluent to the power plant to generate power which eventually illuminated the Games. Energy consumption is one of the largest expenses in operating a wastewater treatment plant. How can the energy cost be reduced?Wastewater treatment facilities are among the major energy consumers at municipal level globally. It is estimated that on average these facilities alone may require about 1 percent to 3 percent of the total energy consumption of a country, representing a significant fraction of municipal energy bills. On the other hand, wastewater and its byproducts contain energy in different forms: chemical, thermal and potential. Traditionally, the only form of energy recovery from most wastewater treatment facilities consisted of anaerobic post-digestion of sludge, by which chemical energy methane is obtained as biogas that converted into energy sufficient to cover about half of plant requirements. But with the technology progressing, new and innovative technology implementation may have more efficient strategies of energy savings and recovery from sewage treatment. SPML Infra has executed a sewage treatment project for Kanpur city with 42 MLD plants that is designed and
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