It is one of eleven suppliers of phthalic anhydride
in the country and is the sole supplier of this product to eleven Illinois corporations (R.
8)
Petitioner has a large investment in pollution control equipmentin the form of a scrubber, which removes 97 of its solid organicmatter from its discharge (R.
22).
(The problem that brings Petitioner
before the Board is that each of its two stacks is emitting approximately 4,000 ppm.
Other fuels contain sulphur which would poison
the catalyst. Hardships to persons .other than Petitioner, suchas employees or customers, may be the basis for granting a ...
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