Brief Outline of Information
In the interest of fair and objective treatment, opinions
previously located at this site have been archived. For now,
we offer only a brief summary and
scanned documents from Tech and the
Department of Environmental Quality.
- Boiler Information
- Virginia Tech owns and operates a 1955 coal-fired boiler.
- This boiler is one of 5 (five) that will provide space heating and
water heating for all campus buildings. In addition, there are:
- Three oil/natural gas boilers, which burn natural gas during the
summer (when demand is low) and oil during the energy-intensive
cold season.
- A new coal-fired boiler (expected to be operational in 1998) which
will meet current emissions standards, removing
over 92% of both sulfur dioxide and PM-10s. The new boiler is about
the same size and type of the 1955 boiler.
- A 1948 coal fired-boiler, which is being (or may already have been)
taken off-line so that the plant as a whole will not trigger
PSD requirements. (PSD would require an in-depth analysis of
pollution generated by the plant).
- Tech plans on using both the new (filtered) boiler and the old 1955
boiler during the cold season.
- Pollution Control
- Overview.
- The 1955 boiler is not required by law to meet current requirements due
to the 'grandfather clause'. It's only filtration equipment is an outdated
"multicyclone" which removes only the heaviest particulates.
- Though the new boiler will meet current emissions requirements, Tech does not
plan on providing additional filtration for the 1955 boiler.
- Particulates
- The multicyclone removes less that 17% of the PM-10s (particulates less than
10 microns) produced when the coal is burned. Current law for
a boiler of similar size, type, and usage would require 90% removal.
- Sulfur Dioxide
- Virginia Tech calculates that the 1955 boiler produces up to
386 tons a year of sulfur dioxide.
- The multicyclone used on the old boiler does not remove any
sulfur dioxide. Every pound of sulfur dioxide produced in the
combustion chamber is released into the air.
- The new boiler, to meet current emissions standards, will
remove 92% of the sulfur dioxide it produces in combustion.
- Nitrous Oxides
- Though nitrous oxide emissions will soon be monitored for the entire
plant, only the 1998 boiler will be required to meet strict emissions
standards. (This is controlled by regulating combustion conditions,
such as temperature and rate of air-flow).
- Virginia Tech may voluntarily regulate the 1955 boiler
in this manner as well; to our knowledge thay have made no such
commitment.
- Health Impact
- Smaller particulates are more dangerous to human health, as they penetrate
deeper into the respiratory system, bypassing defense mechanism that
protect us from larger particulates.
- Acccording the the American Lung Association, Particulates "irritate and
damage" lung tissue.
- Students currently live directly across the street from the power plant.
Page Maintained by
TREE's WebWriters