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Environmental Science & Technology 2018
Journal of Environmental Research
Page 41
March 29-31, 2018
Vienna, Austria
4
th
Edition of International Conference on
Environmental Science
& Technology 2018
I
t is necessary to move towards renewable energy resources,
since the human has faced through global warming and fossil
fuels depletion. Additionally, the livestock, agricultural and
industrial activities have leaded to contamination of water, soil
and atmosphere. With this in mind, anaerobic digestion (AD) is
recognized as a cheap and easy approach for eliminating organic
harmful materials, as well as generating energy. In the present
study, an anaerobic digestion tank specialized for cattle manure
was analyzed. Computational fluids dynamics (CFD) method
was employed to estimate the behavior of the cattle manure
feedstock, while agitating. Mixing, as well as sedimentation
quality, was evaluated with respect to the concentration of the
total solids in the fluid, which affected the rheological (non-
Newtonian) characteristics of the feedstock. The sedimentation
of soil within the digesting tank was simulated
via
discrete
phase model (DPM) and velocity gradient method. ANSYS Fluent
commercial code was utilized to solve continuity and Navier-
Stokes, as well as turbulence, equations. The solver was steady
state while analyzing both the mixing quality and sedimentation.
By evaluating the achieved velocity and pressure fields, it is
concluded that the mixing quality is appropriate for all the models
with feedstock with total solid concentrations of 2.5% to 12.1%.
However, themixer is not efficient enough to avoid sedimentation.
Finally, some recommendations for simulating the chemical
reactions are presented for the future studies.
Recent Publications
1. Nazari Kudahi S, Noorpoor A R and Mahmoodi N M
(2017) Determination and analysis of CO
2
capture
kinetics and mechanisms on the novel graphene-
based adsorbents. Journal of CO
2
Utilization 21:17-29.
2. Asgari S, Noorpoor A R and Boyaghchi F A (2017)
Parametric
assessment
and
multi-objective
optimization of an internal auto-cascade refrigeration
cycle based on advanced exergy and exergoeconomic
concepts”. Journal of Energy 125:576-590.
3. Noorpoor A R and Rohani S (2016) Thermo-economics
analysis and evolutionary-based optimisation of a
novel multi-generation waste heat recovery in the
cement factory. Int. Journal of Exergy 21:405-434.
4. Noorpoor A R and Nazari Kudahi S (2016) Analysis
and study of CO
2
adsorption on UiO-66/graphene
oxide composite using equilibrium modelling and
ideal adsorption solution theory (IAST). Journal of
Environmental Chemical Engineering 4:1081-1091.
5. Noorpoor A R and Nazari Kudahi S (2015) CO
2
emissions from Iran’s power sector and analysis of
the influencing factors using the stochastic impacts
by regression on population, affluence and technology
(STIRPAT) model. Journal of Carbon Management
6:101-116.
Biography
Alireza Noorpoor was born 1974. In 1992, He moved to Mazandaran Uni-
versity for BSc in Mechanical Engineering (Fluid Mechanics) and graduated
BSc in 1996 as top student of department. He continued in
M.Sc.from1997
to 1999. He has completed his PhD at the age of 30 years from Iran Univer-
sity of Science and Technology (IUST) and started to teaching at IUST. In
2010 he moved to University of Tehran. Now, he is associate Professor of
Graduate Faculty of Environment at University of Tehran. He is the head of
Air Pollution and Energy Systems Research Group (FANPAYA Co.) and Edi-
tor-in-Chief Journals: Solar Energy Research (JSER) and Environmental Sci-
ences Studies (JESS). His interest fields are: Computational Fluid Dynamics
(CFD), Air Pollution, Bio-gas, Carbon Capture and Energy Systems Engineer-
ing. He has published more than 200 papers in journals and conferences.
He has held more than 10 International conferences at University of Tehran.
noorpoor@ut.ac.irSedimentation and mixing analysis in cattle manure feedstock in
a stirred tank of anaerobic digestion
Ali Reza Noorpoor
1
, Soroush Dabiri
1
and
Mohammad Hadi Varahram
2
1
University of Tehran, Iran
2
Ministry of Science, Research and Technology, Iran
Ali Reza Noorpoor et al., J Environ Res, Volume 2