Efficacy of cleaner technology in wastewater treatment and Energy conservation using (UASB-R) Anaerobic Digester at Bagasse-Based Pulp and Paper Millin Tamil Nadu

The present study is conducted in Pulp and Paper industry, karur, Tamil Nadu is taken for the purpose to compare the economic and environmental Benefits of this two fold cleaner technology, Up-flow Anaerobic sludge blanket, Bio-methanation (Cleaner technology) were compared with their older conventional technology, on the factors of environment, economic, water recirculating and energy conservation. Using cleaner technology has more efficiency and environmental sustainability on management perspective cleaner technology in energy conserving and Greenhouse gas Emission reductionshows,127928 MT CO2e average per year, on comparing the cost like benefited cost per liter using (secondary clarifier) cleaner technology is 0.00915 percent and return on investment in (up-flow anaerobic sludge blanket reactor) cleaner technology is -0.39691 percentthe result shows physcio-chemical parameters of conventional and cleaner technology treatment like pH-6.4 and 7.4, TDS -2564.4, and 2019, DO- 0 and 2.4 mg/l, BOD -227.5 and 5.75 mg/l, COD -548.7 and 218.6 mg/l,.Within permissible limits of Industrial water standards by Tamil Nadu pollution control board (TNPCB). For more efficiency this two technology are used has an add-on in this Paper industry were Biomethanation is processed using UASB rector output comes has biogas and they have lots of advantage were water is re-circulated to achieve zero liquid discharge in process has per norms given by Central pollution control board.