4.4.4.6   Implementability -- Alternative 4

The most positive aspect of quicklime treatment is that it is
readily implemented with standard off-the-shelf equipment;
however, implementability is easy in unenclosed areas only.  The
types of machinery used will depend on the scale of operations,
but the unit processes consist of the following:

          Excavation of soil or other waste
          Dry mixing of soil and quicklime
          Addition of water and further mixing during initial
          reaction
          Discharge of treated waste as a slurry that may tend to
          solidify

An enclosure should be constructed for the quicklime treatment
system capable of meeting the system requirements.  The enclosure
would need to have emission controls to contain fugitive dust
produced during dry mixing.  The elements required to implement
the quicklime treatment alternative are readily available and can
be easily transported on site.

On the other hand, the enclosure of such a system would be quite
difficult because it must allow for the major heating of the
reaction mixture and consequent expulsion of initially
superheated steam carrying PCBs and other hazardous chemicals. 
The volume increase of the quicklime process would cause
additional disposal and handling problems.  The threefold
increase in volume would require the disposal of 796,500 and
1,329,500 tons of material in Scenarios 1 and 2 respectively.  It
is possible
that there would not be adequate capacity in the proposed 30-acre
landfill to contain these wastes.  If this is the case, a new
landfill or an existing landfill would be required for the excess
waste.

Permits would need to be acquired for the construction of the
required enclosure.  The fenced area at the CTF would provide
security while the cleanup takes place.  No major road
improvements would be required.