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Department
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176
Engineering Building |
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Department
of 176
Engineering Building Contact
Us: Trace
Organic Analytical
Laboratory The
Trace Organic Analytical Laboratory (TOAL)
conducts high quality analyses for organic
chemicals of environmental concern. The
chemicals currently include the
polychlorinated dibenzo-p-dioxins (PCDDs),
polychlorinated dibenzofurans (PCDFs),
polychlorinated biphenyls (PCBs), planar
PCBs, polycyclic aromatic hydrocarbons
(PAHs) and organochlorinated pesticides
(OCPs). The lab has performed analyses on
soil, sediment, papermill sludge,
incinerator ash, water, fish as well as
avian and mammalian wildlife. The
Laboratory was created in 1986, originally
as a part of the Chemical Toxicology
Research Center (CTRC), and is now housed
in the Natural Resources Research
Institute (NRRI). It exists to provide
analytical support to environmental
research projects within the University
and to provide state-of-the-art analyses
for state agencies and other units outside
the University. The Laboratory is an
integral part of a growing research
program in environmental science &
engineering within the University.
Instrumentation includes a GC/MS (HP
5890II with 5971A MSD) used for PCDD, PCDF
and PAH analysis and a GC (HP 5890A) with
two electron capture detectors for PCB
& OCP analysis. Methods used for PCDDs
& PCDFs follow closely those developed
in the U.S. EPA for the National Dioxin
Study. PCB methods follow closely those
described in EPA method SW 846. The
laboratory seeks diligently to maintain
high standards of quality assurance and
control (QA & QC). Every effort is
taken to incorporate recent advances in
methodology and ensure that acceptable
levels of detection are
attained. Contact
Dr.
Keith
Lodge
for further information. |
Top
| Numerical
models are developed for modeling chemical
processes involving fluid flow, heat and
mass transfer with chemical reaction. The
mathematical models are solved with the
aid of sophisticated software on personal
computers and UNIX workstations. Modeling
and simulation software include CFX,
HYSYS, Superpor Designer, MathCAD, Matlab,
FEMLAB, Mathematica, Visual FORTRAN, IMSL
Numerical, Statistics, and Special
Functions Libraries, JMP, Visual Basic,
C++. Computational
Fluid Dynamics (CFD) is used as a
numerical tool for modeling fluid flow,
heat transfer, and reactions in
fluid/solid systems such as porous beds,
membranes, reactors, and channels. The
capabilities of the department include
FEMLAB and AEA's CFX 4.2 on an Ultra Sparc
II. The department maintains UNIX and PC
workstations for numerical
modeling. Contact
Dr.
Richard
Davis
for more information. |
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| The
Mass Transfer Lab (MTL) is located in the
Engineering Building on the UMD campus.
Transport phenomena and physico-chemical
properties of fluid systems are researched
in the Mass Transfer Laboratory. A laminar
liquid jet is used to measure rates of gas
aborption into liquids under conditions of
small contact times on the order of a
millisecond. This device has the advantage
that liquid hydrodynamic effects are
negligible and fast reacting systems may
be studied. For slower absorbing or
reacting systems, a Parr mini-reactor is
available. An Reactive System Screening
Tool calorimeter is used to for safe
reactor design. Capabilities
for measuring physical, chemical and
thermodynamic properties are available in
this laboratory. Specific properties
include density, viscosity, diffusivity,
reaction rate constants, partition
coefficients, and vapor-liquid
equilibrium. Analytical
equipment include a GCMS, UV-Vis
spectrophotometers, HPLC with
spectrophotometer and refractive index
detectors, electronic analytical balances,
surface tensiometer, Z-potentiometer,
particle size analyzers, and
centrifuges. Contact
Dr.
Richard
Davis
for more information. |
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The
faculty in the department of Chemical
Engineering regularly provide short
courses, workshops, and seminars as part
of our ongoing effort to support regional
businesses and schools. Examples of titles
of short courses include: Engineering
Statistics, Hazardous Waste Minimization,
Air Pollution Control, Process Modeling
& Simulation, Engineering Economics,
and FE/EIT Review. For
further information, please
contact: Chemical
Engineering Department |
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Chemical Engineering
1303 Ordean Court
Duluth, Minnesota 55812
(218) 726-7126
che@d.umn.edu
Chemical
Engineering Training &
Education