CSIR-Central Leather Research Institute
Dr.C. Lajapathi Rai
Sr. Principal Scientist
Academic Qualifications
    MS (Engg),. Ph.D
Contact Details
Dr.C. Lajapathi Rai
Sr. Principal Scientist
Head, Pilot plant
Chemical & Biological Pilot plants, Chemical Engineering
CSIR-Central Leather Research Institute
Adyar, Chennai – 600 020
e-mail: clrai@clri.res.in, clrai@hotmail.com,
Phone:+91-44-24916706


Qualification
 

B.E (1989), in Mechanical Engineering from A.C. College of Engineering &Technology, Karaikudi

M.S (1994) in Technological operations from BITS, Pilani

Ph.D (2008), Interdisciplinary (Engg. & Industrial chemistry) from Alagappa University, Karaikudi

Area of research interests
 
  • Microbial fuel cell (MFC) for wastewater treatment and bio-energy with excess sludge biomass reduction
  • Wet sludge mechanical disintegration to accelerate aerobic/anaerobic digestion.
  • Wastewater Treatment through mechanical devices
  • Mechanical pretreatment strategies
Qualification
 

B.E (1989), in Mechanical Engineering from A.C. College of Engineering &Technology, Karaikudi

M.S (1994) in Technological operations from BITS, Pilani

Ph.D (2008), Interdisciplinary (Engg. & Industrial chemistry) from Alagappa University, Karaikudi

Area of research interests
 
  • Microbial fuel cell (MFC) for wastewater treatment and bio-energy with excess sludge biomass reduction
  • Wet sludge mechanical disintegration to accelerate aerobic/anaerobic digestion.
  • Wastewater Treatment through mechanical devices
  • Mechanical pretreatment strategies
Topic of Ph.D Thesis
 
  • Influence of mechanical disintegration on the microbial growth of sewage sludge

List of selected Publications in National and International Journals

  1. C. L. Rai, I Devotta and P. G. Rao., Heat transfer to viscous newtonian and non-newtonian fluids using helical ribbon agitator, Chemical Engg. J, (2000), p 73-77.
  2. C. L. Rai, I Devotta and P. G. Rao., Aspects of enhancement and retardation of evaporation rate of soak liquor in tannery solar pans, J. of Amer. Leath. Chem. Assn. (JALCA), (2000), Vol. 95, p 319- 323
  3. C. L. Rai, A. Sivasamy and P. G. Rao., Disintegration of tannery sludge by acoustic cavitation- An approach for sludge management. J. of Amer. Leath. Chem. Assn. (JALCA), (2004), Vol. 99, p 457- 460.
  4. Chockalingam Lajapathi Rai, G   Struenkmann, J Mueller and P. G. Rao., Influence of ultrasonic disintegration on sludge growth reduction and its estimation by respirometry, Environ. Sci. Technol., (2004), Vol. 38, p 5779- 5785.
  5. Chockalingam Lajapathi Rai, G   Struenkmann, J Mueller and P. G. Rao., Microbial Growth Reduction in Sewage Sludge by Stirred Ball Mill Disintegration and Estimation by Respirometry, J. Chem. Tech. Biotechnol., (2008), Vol. 83, p 269- 278
  6. C. Lajapathi Rai and P. G. Rao, Influence of sludge disintegration by high pressure homogenizer on microbial growth in sewage sludge: an approach for excess sludge reduction, Clean. Techn. Environ. Policy, published online February 2009
  7. C. L. Rai, M. surianarayanan, A. sivasamy and F. Chandrasekaran, Pollution prevention by salt free preservation of raw goatskins through stepwise drying, Int. J. Environ. Engng, 1 (3), 2009.
Awards
  • Awarded DAAD (Long term- fellowship) to do Ph.D in Technical University Braunschweig (Institute for mechanical biological process) presently Institute for Mechanical Biotechnology, Germany. 2001-2003.
  • Undertaken scientific investigation in the European commission project “Ways of innovation for the reduction of excess sludge (WIRES)”.