Listed below
are some of our previous projects. For a more complete list of projects,
please contact Dr. R. Soundararajan at drs@hnswp.com.
HNS Depleted Uranium
in Oil Project
At
Hanford, Washington there are about 2000 drums containing depleted
Uranium chips in mineral oil. The mineral oil has been contaminated
with PCBs, TCE and TCA. Conventional remedial techniques, such
as cement based grouting, will not work for this mixed waste. Hence,
the U.S. EPA ORD in Cincinnati has requested that HNS help DOE to
develop a remediation process for this waste.
Subsequently, HNS designed their proprietary process
and now patented thermal desorption system operating at a reduced
pressure in a Helium atmosphere due to the pyrophoric nature of
Uranium.
The
reduced pressure distills oils with the pollutants at a lower temperature.
The distilled organics are then combusted and scrubbed. The dry
Uranium is coated with HNS’ patented radiation proof polymer. The
materials are crushed, coated with the same polymer, and then taken
to the site’s Emergency Response Disposal Facility, ERDF.
Our
proposal meets all the compliance requirements and hence, was approved
by U.S. EPA Region X, Washington State Dept. of Ecology and by DOE.
This project is typical of our capabilities in handling any type
of waste.
Our
work was completed through a subcontract from Bechtel Hanford, Inc.
For
more information, contact: Steve Parikh, Project Manager at (509)
372-9180.
HNS SITE Program
Project
HNS
has been technical advisors to U.S. EPA’s Office of Research and
Development (ORD) on the evaluation of technologies under the Superfund
Innovative Technology Evaluation (SITE) Program. We evaluated not
only the scientific validity of concepts, but also their field viabilities.
Our
services saved large sums of money and reduced expenses for the
U.S. EPA by weeding out inept technologies. This work was completed
from 1989 to 1992.
For
more information, contact: Ed Barth, Project Manager at (513) 569-7669.
HNS Periodic Release
of Flammable Gases Project
HNS
conducted an investigation for the U.S. Department of Energy, and
brought to an end to the "Periodic Release of Flammable Gases"
problems from Hanford’s radioactive waste storage tanks. Our work
resulted in preventing dangerous gas releases.
Subsequently,
the cost of building 12 double-shelled tanks estimated at $360 million
was avoided during the period between 1992-1993.
For
more information, contact: Dr. Don Alexander; Project Manager at
(509) 372-2453.
|
