|
Project
specific experience in gold mining waste management has included the
following:
·
Start-up and operation
of the Hope Brook Gold Mine (Newfoundland, Canada) waste treatment circuit for
the removal of cyanide, arsenic and copper by hydrogen peroxide, lime and
ferric sulphate chemical treatment.
·
Testing and design of
treatment requirements for mill waste water and excess mine water for the
Grant Gold Mine (Fairbanks, Alaska) for the removal of cyanide, arsenic and mercury.
·
Design and operation
of the mill tailings handling facility for the Bootleg Gold Mine (Creighton, Saskatchewan) using natural degradation for cyanide treatment.
·
Troubleshooting and operation
of the hydrogen peroxide mill waste solution treatment circuit for the Tartan Lake Gold Mine (Flin Flon, Manitoba) and assessment of alternative waste treatment methods
for removal of cyanide.
·
Replacement of a
troublesome cyanide gold recovery circuit and associated sodium metabisulphite cyanide treatment circuit with a more
benign gravity/flotation circuit to eliminate environmental problems
associated with cyanide in the waste management area of the Skyline Gold
Mine (Johnny Mountain, British
Columbia).
·
Start-up, operation
and due diligence audit of the SO2/air cyanide treatment process
to treat mill tailings slurry from the Ketza River Gold Mine (Ross River, Yukon) and assessment of treatment alternatives for trace
removal of cyanide and arsenic from tailings pond water.
·
Development of a
cyanide treatment process for the Golden Bear Gold Mine (British Columbia) to treat mill tailings slurry using roaster off-gas.
·
Technical
troubleshooting of Jolu Water Treatment Plant (Saskatchewan), implementation of process changes, and operator
training for efficient treatment of cyanide, copper and arsenic.
·
Preparation of
detailed manual on waste treatment technologies in use at Canadian gold
mines, including effluent characterization.
·
Start-up and operation
of the AVR (acidification-volatilization and re-neutralization) process for
treatment and recovery of cyanide from tailings slurry at the Cluff Lake Gold Plant (Cluff Lake, Saskatchewan) which reprocessed uranium tailings for gold recovery.
·
Detailed assessment
and report on environmental and toxicological impacts of cyanide and
arsenic in gold mill effluents.
·
Detailed evaluation of
the environmental impact of cyanide in gold mill effluents including
evaluation of cyanide destruction alternatives.
·
Detailed review and
report on cyanide destruction alternatives and assistance with proprietary
hypochlorite process.
|
