8 / 10
Page 53
Notes:
allied
academies
Journal of Materials Science and Nanotechnology | Volume: 3
March 20-21, 2019 | London, UK
Materials Science and Materials Chemistry
2
nd
International Conference on
Waste to energy generation from distillery waste water
Rajendra S Raut
AISSMS COE, India
M
olasses based distilleries are classified as “Red Category”
because of the large volume of high strength waste water
generated by them. Pollution caused by spent wash is one of
the most critical environmental issues. Spent wash is one of the
recalcitrant waste having extremely high COD (120000 mg/l),
BOD (60000 mg/l), SS, inorganic solids, low pH, strong odour
and dark brown colour. The problem of increasing amount
of spent wash generation and stringent norms has resulted
in development of new technologies for its effective and
economical disposal.
Biomethanation is viewed as a complex ecosystem in which
physiologically diverse groups of micro-organisms operate and
interact with each other in a symbiotic, synergistic, competitive
and antagonistic association. The anaerobic microbial food
chain consists of mainly three functionally different groups
of microorganisms. Following four pathways are involved in
anaerobic digestion of organic wastes
• Hydrolysis: Hydrolysis break down macro organic materials
such as carbohydrates, proteins and lipids, by incising water
molecules into lower molecular weight fatty acids, amino acids
and sugars.
• Acidogenesis: Acidogenic bacteria convert fatty acids, amino
acids and sugars into organic acids, hydrogen, ammonia and
carbon dioxide.
• Acetogenesis: Acetogenic bacteria convert organic acids,
hydrogen and carbon dioxide into acetic acid, hydrogen and
carbon dioxide.
• Methanogenesis: Methanogenic bacteria convert acetic
acid, hydrogen and carbon dioxide into methane and carbon
dioxide. Readily available CO
2
is used as an electron accepter.
This reaction is slowest and the rate limiting step of the total
anaerobic digestion process.
Generated methane gas is used as a fuel and cost saving by
using methane in boiler or it is possible to make bottling of gas
Speaker Biography
Rajendra S Raut is a faculty member of Department of Chemical Engineering, AISSMS
College of Engineering, India. He earned a Bachelor of Chemical Engineering (2000),
a Master of Engineering from Institute of Chemical Technology, Mumbai. He has total
16 years of working experience in Chemical Engineering filed. For the past 6 years,
Rajendra has taught various Chemical Engineering subjects for PG and UG in AISSMS
College. His interests include: Energy Saving in plants, Energy Conservation, Heat
Transfer; Mass Transfer, Alcohol and incorporation of technical innovative ideas within his
classroom. He is a member of the organization “Indian Institute of Chemical Engineers”.
e:
rsraut@aissmscoe.com