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Clean Air Act |
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Conscious
of our responsibility with the people and the environment,
PREPA complies with the Federal Clean Air Act and with
regulations from EPA and the Environmental Quality Board (EQB)
to ensure that its emissions have the least negative impact
on our ecosystems. To do so, PREPA has put in place a far-reaching
plan aimed at counteracting the opacity levels of the
visible emissions of our generation centrals. |
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Environmental Programs |
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- Redesign, build and
install of irrigators and mixers in modern, high-efficiency
burners in all the boilers of the generation centrals.
- Conversion of all
boilers from positive to negative pressure
- Installation of modern
opacity detectors in the chimneys, oxygen analyzers and
viscosymeters in the fuel systems.
- The boiler fuel control
systems were replaced by new high-tech systems.
- Installation of TV sets
in the boiler operator's consoles to observe the emissions
released through the chimneys.
- Installation of
sootblowers economizer.
- Installation of steam
serpentines in the suction of the force draft fans.
- Stricter fuel
specifications to guarantee the purchase of the best
quality fuel. The maximum content allowed for sulphur is
1.5%; for the vanadium 150ppm and for the asfaltene 8%. As
a voluntary measure Costa Sur, and Aguirre
Plants are not exceding 1.0% of sulphur content.
This fuel is used in all PREPA steam units.
- Meteorological towers
with air quality sampling equipment.
- Operation of a
computerized emission control mobile laboratory. which is
able of carrying out multiple fuel tests, an efficient
tool in establishing the optimum operation for the
parameters related to visible emissions.
- PREPA is carrying out
tests with additives in Aguirre units 1 and 2, and Costa
Sur 5 and 6, in order to reduce the formation of trioxide
sulphur, which is responsible for the white opacity
observed in these units' emissions.
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