Precious Metals Recovery LLC RCRA Permit Application Dry Hills ...

of 13.5 feet long by 4.7 feet wide by 4.9 feet tall. Each plate within the shell measures
approximately 625 square inches. A high density polypropylene filter cloth is used to filter solids
from the waste solution. The filter press description and arrangement is provided in Section
1.2.2.
The filter press was selected as the most effective means to achieve solid-liquid separation.
30.2.2 Filter Press Design – 40 CFR 270.23(a)(1)
The filter press is described in detail and illustrated in Section 1.2.2.
The filter press specification is included in Appendix 30-A (document H340940-PM006-50-328-
0001). As the proposed TSF design approaches the construction phase, more detailed
specifications will be provided to update the information presented in Appendix 30-A.
30.2.3 Filter Press Design Details – 40 CFR 270.23(a)(2)
The filter press will be a prefabricated unit; therefore, no construction details will be provided.
The vendor will certify proper installation of the unit prior to beginning operation in the
proposed TSF.
30.2.4 Secondary Containment
The filter press will discharge filtrate via attached piping. The filter cake will drop through
chute(s) into collection drum(s). The discharge chute area will be enclosed.
30.2.5 Filter Press Operating Procedures – 40 CFR 270.23(a)(2)
The filter press is described in detail in Section 1.2.2. The filter press will be operated in
accordance with the vendor operating and maintenance procedures manual.
30.2.6 Monitoring – 40 CFR 270.23(a)(2)
The filter press is a vendor supplied package. Monitoring parameters will be implemented based
on vendor recommendations.
30.2.7 Inspection – 40 CFR 270.23(a)(2)
The filter press will be visually inspected at the beginning of each day. Inspection details are
included in the Inspection Plan (see Appendix 4-A).
30.2.8 Closure – 40 CFR 270.23(a)(2)
At closure, all waste will be removed from the filter press. The filter press will be dismantled and
the debris will be sent to a hazardous waste landfill for disposal. The container of filter cake will
be closed and disposed of. A detailed description of the closure process is included in the
Closure Plan (see Appendix 13-A).
PMR RCRA Permit Application, Dry Hills Facility Page 139
JBR Environmental Consultants, Inc. | HATCH March 2013