Dr. Mitra has 25 years of domestic and international work experience (13 years in India and 12 years in USA) in wastewater. He is an International Wastewater and Sludge (Biosolids) Treatment Expert and had been recognized as a “Who’s Who” in Water & Wastewater. He is a registered Professional Engineer (PE) of the State of Virginia, USA.

    Dr. Mitra has designed and worked on hundreds of Wastewater Treatment Plants (WWTPs), Sewage Treatment Plants (STPs), Effluent Treatment Plants (ETPs) and Sludge Treatment. He is an expert technologist in Biological Nutrient Removal (BNR and ENR) employing mainstream MBBR, BAS, IFAS, MBR, SBR, Activated Sludge, MLE, A/O, A2O, 3-stage and 5-stage Bardenpho process, sidestream DEMON/Anammox process and Anaerobic Treatment for BOD, Nitrogen and Phosphorus removal in WWTPs, STPs, ETPs and CETPs. Expertize in Sludge (Biosolids) Treatment includes Anaerobic Digestion, Advanced Anaerobic Digestion, Thermal Hydrolysis Process (THP), and Aerobic Digestion Technologies with/without Power Generation and producing Class A and Class B Biosolids. Dr. Mitra has also been a consultant/advisor to several Industries and Fortune 500 companies (e.g., Reliance, Tata Companies, Reliance, Unilever, Nestle etc), Consulting Companies (e.g., KPMG, Ernst and Young etc), EPC companies, Municipalities, State and Central governments in India and USA. Worked on projects funded by World Bank, Asian Development Bank and Japan International Cooperation Agency (JICA). He has provided full-time consulting services to United States Environmental Protection Agency (EPA) for several years developing various wastewater regulations, policies and technologies for USA.). 

    For last 10 years, Dr. Mitra has worked in Leadership Position as Director/Vice-President heading Business Development, Proposals, Technology & Process, Design & Engineering in leading Water and Wastewater Companies. Companies worked include CH2M Hill/Jacobs (USA), Tetra Tech (USA), World Water Works (USA), Cambi (Europe), NJS Consultants (Japan), Toshiba Water (Japan), Ion Exchange Ltd and Praj Industries. 

    Dr. Mitra has completed B.Tech in Chemical Engineering from IIT, Kharagpur, India, MS in Environmental Engineering from Vanderbilt University, Tennessee, USA, Ph.D in Environmental Engineering from Lehigh University, Pennsylvania, USA and MBA in Finance from Virginia Tech, Virginia, USA. He has authored several books and papers and is a member/advisor to several leading water & wastewater associations and organizations. He is an invited speaker for several domestic and international conferences, seminars, workshops, universities, companies and research organizations.