Page 451 - Materials Chemistry, Second Edition

CAT3525_C12.qxd 1/27/2005 4:11 PM Page 422
422 Waste Management Practices: Municipal, Hazardous, and Industrial

FIGURE A.12.7 Satellite accu-
mulation area. Photo by
Theresa M. Pichtel.

14. A technician at a university laboratory has discovered an aging bottle of picric acid. The bottle has
never been opened, and the technician is hoping to find some inexpensive, simple means of disposal.
15. A metalworking operation uses trichloroethylene (TCE) for degreasing parts. The facility has
a vapor degreaser that it uses to distill the TCE on site. The recovered TCE is used several times for
degreasing. Although TCE can have an F001 or F002 listing, the facility does not consider this par-
ticular TCE to be a waste at all, as it is recycled and reused immediately; therefore, they are not a
hazardous waste generator.
16. The roll-offs (containers) shown in Figure A.12.8 are storing a K-listed waste. What is the prob-
lem regarding their management?

A.12.1.3 RESPONSES TO QUESTIONS ABOUT SCENARIOS
1. (a) Although allowed to air-dry, the paint chips are by no means free of this heavy and
hazardous solvent (as indicated by the aromatic smell and PID readings). The facility
should have conducted a waste determination on both the paint chips and the walnut
shells, i.e., determine whether the solid waste they produce is a hazardous waste.
The paint chips are both a listed (F002) and a characteristic (toxic) hazardous waste;
therefore, disposal in an ordinary MSWLF is not permitted. Similarly, the walnut shells
are a listed waste according to the Mixture rule.
(b) Given that hazardous waste is indeed generated on the premises, the generator must
prepare a Uniform Hazardous Waste Manifest according to 40 CFR 262.20. Additionally,
the generator must send a one-time written notification to each land disposal facility
receiving the waste.
(c) A generator may accumulate hazardous waste on-site for 90 days or less without a
permit. The Hi-Jinx facility has been storing the methylene chloride for 4 to 5 months at
least.
(d) The facility was conducting “treatment” of a hazardous waste by drying the methyl-
ene chloride-contaminated paint chips in the trailer. They do not have a permit to treat
hazardous wastes.
(e) A Title V air permit is needed, as a hazardous solvent is being allowed to volatilize.
The affected state has stipulated, in its own regulations, that:

A person may not discharge, emit, cause … or allow any contaminant or waste, including any
noxious odor … into the environment.