26/03/2024
๐๐ง๐ง๐จ๐ฎ๐ง๐๐๐ฆ๐๐ง๐ญ ๐๐จ๐ซ ๐๐๐ ๐๐๐ ๐๐ง๐๐ข๐ ๐๐ก๐๐ฉ๐ญ๐๐ซ ๐๐๐๐ข๐ง๐๐ซ ๐๐๐ซ๐ข๐๐ฌ
๐๐๐ฅ๐ค ๐จ๐ง ๐ญ๐ก๐ ๐๐๐ฏ๐๐ง๐๐๐ ๐๐ง๐๐๐ซ๐จ๐๐ข๐ ๐๐ข๐ ๐๐ฌ๐ญ๐ข๐จ๐ง (๐๐๐) ๐จ๐ ๐๐ฅ๐ฎ๐๐ ๐: ๐๐ก๐๐ซ๐ฆ๐๐ฅ ๐๐ฒ๐๐ซ๐จ๐ฅ๐ฒ๐ฌ๐ข๐ฌ ๐๐ซ๐จ๐๐๐ฌ๐ฌ (๐๐๐) ๐ฐ๐ข๐ฅ๐ฅ ๐๐ ๐๐๐ฅ๐ข๐ฏ๐๐ซ๐๐ ๐๐ฒ ๐๐ซ. ๐๐ง๐๐ซ๐ ๐ ๐๐ข๐ญ๐ซ๐, ๐๐ข๐ซ๐๐๐ญ๐จ๐ซ, ๐๐๐๐๐ (๐๐ฎ๐ซ๐จ๐ฉ๐), ๐๐ง๐๐ข๐.
๐๐๐ญ๐: 27 March 2024 (Wednesday)
๐๐ข๐ฆ๐: 16:00 Indian Standard Time
๐๐๐ ๐ข๐ฌ๐ญ๐ซ๐๐ญ๐ข๐จ๐ง ๐๐ข๐ง๐ค: https://shorturl.at/diKMZ
๐๐๐๐ข๐ง๐๐ซ ๐๐๐ฌ๐ญ๐ซ๐๐๐ญ
Wastewater generated from cities and towns are treated in Sewage Treatment Plants (STPs). STPs produce two products: (i) treated wastewater and (ii) sludge.
Sludge is treated in anaerobic digesters to stabilize the sludge, produce biogas and reduce the volume of sludge to be disposed of. However, the digested sludge produced from digester contains pathogens (disease causing bacteria) and present a health hazard. So, the digested sludge needs to be further treated to produce pathogen-free sludge which can be used as a fertilizer or soil conditioner/amendment.
Thermal Hydrolysis Process (THP) is an advanced anaerobic process which is placed ahead of the anaerobic digesters as a pre-treatment process. In THP, the sludge is first subjected to a high pressure of 6-6.5 bar and a high temperature of 160-165 degree Celsius for 20-30 minutes. The pressurized and high temperature sludge is then suddenly exposed to ambient atmospheric pressure and temperature leading to steam explosion. Thermal pre-treatment and steam explosion disintegrates the sludge floc and improves the degradability of the sludge, by destroying chemical bonds in the cell wall and membrane of the bacteria and in addition denatures carbohydrates, lipids and proteins which become more accessible to biological degradation in downstream anaerobic digesters.
Using THP as a pre-treatment process for anaerobic digesters:
* produces a pathogen-free sludge.
* reduces the digester volume by 60-70%.
* increases biogas generation by 20-50%.
* reduces the volume of digested sludge to be disposed by 30-50%.
* decreases the operational cost of sludge treatment by 30-50%.
* produces a biosolid with no or little odour.
* reduces carbon footprint.
๐๐ซ๐ข๐๐ ๐๐ข๐จ ๐จ๐ ๐ญ๐ก๐ ๐ซ๐๐ฌ๐จ๐ฎ๐ซ๐๐ ๐ฉ๐๐ซ๐ฌ๐จ๐ง
Dr. Indra N. Mitra is a seasoned Business Professional and Technologist renowned for his expertise in the field of Water and Wastewater management. With a distinguished career spanning over two decades, Dr. Mitra has achieved remarkable success in both entrepreneurial ventures and corporate leadership roles.
As the founder of two thriving start-ups in India, he brought foreign technology companies to new heights of success in the Indian market. His pioneering work in Water and Wastewater treatment has earned him recognition as a "Who's Who" in Water & Wastewater by the American Academy of Environmental Engineers (AAEE).
Throughout his career, Dr. Mitra has spearheaded numerous projects in Wastewater Treatment, Sewage Treatment, and Water Treatment, securing funding from prestigious international agencies such as JICA, ADB, and the World Bank. His expertise encompasses a wide range of advanced technologies, including Biological Nutrient Removal, Anaerobic Digestion, and Thermal Hydrolysis
Process.
In his leadership roles, Dr. Mitra has made significant contributions to renowned companies such as Cambi (Europe), Jacobs (U.S.), and Tetra Tech (U.S.), driving business growth and innovation in the field of environmental engineering. His consultancy services have been sought after by governments, multinational corporations, and prestigious organizations worldwide.
Dr. Mitra has completed B. Tech from IIT, Kharagpur, India, M.S. from Vanderbilt University, USA, Ph. D from Lehigh University, USA & MBA from Virginia Tech, USA. He has presented in more than 200 conferences, seminars and workshops. He has authored several books and papers and is a member to several leading associations and organizations.
