Project Profile
Project Profile Ketza River Mine – Yukon, Canada 250 gpm Coagulation/Filtration System Arsenic Removal Background In late 2011, Yukon Nevada Gold contacted AdEdge Water Technologies, LLC to design, manufacture, and start up an arsenic removal system for the Ketza River Mine in Yukon, Canada. The site required arsenic treatment of the discharge water from the mine’s tailings pond. The existing treatment plant was inoperable and the AdEdge system replaces it. Arsenic levels in the tailings pond are approximately 54 ppb. The Canadian Metal Mining Effluent Regulations (MMER) sets the standard at 50 ppb. The AdEdge system was designed for a flow rate of 250 gallons per minute with bypass and recirculation built into the system.
Treatment System Background The AdEdge treatment system features a skid-mounted GS+ coagulation and filtration package unit enclosed in a WaterPod containerized building sized for a maximum design flow of 250 gpm. The model AD26-4860CS-4AVH utilizes AdEdge GS+ and anthracite media in a four vessel carbon steel configuration in parallel. The arsenic removal system is housed in a 40 foot cargo container equipped with HVAC, pedestrian doors, ventilation vents, windows, and lighting. The WaterPod system sits on a concrete slab base and is pre-designed and pre-piped. The system is equipped with automated control valves and harness, central control panel with programmable logic controller (PLC) and a color user interface screen. A continuous feed of sodium hypochlorite is fed prior to the treatment system to optimize the removal of arsenic via the AdEdge ADIN chemical feed system. Ferric chloride is also injected into the raw water prior to the treatment vessels to promote the formation of pin floc and create larger particles that are easier to filter in the media bed. Each 48-inch diameter treatment vessel contains 27 cubic feet of AdEdge GS+ coagulation/filtration media. AdEdge GS+ is a NSF 61 certified black filter media used for the removal of arsenic, iron and manganese. The manganese dioxide coated surface of GS+ acts as a catalyst in the oxidation reduction reaction of iron and manganese. In addition to the GS+ media, each treatment vessel contains approximately 9 cubic feet of anthracite coal that acts as a pre-filter to the GS+ media. Backwashing of the treatment system occurs every day depending on the incoming levels of arsenic and the number of gallons processed.
Performance The system was started up and commenced in June 2012. Since the system began operation, the arsenic levels in the mine’s tailings pond were reduced from 54 ppb to below to MMER of 50 ppb.
For More Information Contact AdEdge Water Technologies, LLC Mr. Greg Gilles 5152 Belle Wood Court, Suite A Buford, Georgia 30518 678-835-0052 * 678-835-0057 Fax [email protected] www.adedgetechnologies.com AdEdge 08-13
Treatment System Background The AdEdge treatment system features a skid-mounted GS+ coagulation and filtration package unit enclosed in a WaterPod containerized building sized for a maximum design flow of 250 gpm. The model AD26-4860CS-4AVH utilizes AdEdge GS+ and anthracite media in a four vessel carbon steel configuration in parallel. The arsenic removal system is housed in a 40 foot cargo container equipped with HVAC, pedestrian doors, ventilation vents, windows, and lighting. The WaterPod system sits on a concrete slab base and is pre-designed and pre-piped. The system is equipped with automated control valves and harness, central control panel with programmable logic controller (PLC) and a color user interface screen. A continuous feed of sodium hypochlorite is fed prior to the treatment system to optimize the removal of arsenic via the AdEdge ADIN chemical feed system. Ferric chloride is also injected into the raw water prior to the treatment vessels to promote the formation of pin floc and create larger particles that are easier to filter in the media bed. Each 48-inch diameter treatment vessel contains 27 cubic feet of AdEdge GS+ coagulation/filtration media. AdEdge GS+ is a NSF 61 certified black filter media used for the removal of arsenic, iron and manganese. The manganese dioxide coated surface of GS+ acts as a catalyst in the oxidation reduction reaction of iron and manganese. In addition to the GS+ media, each treatment vessel contains approximately 9 cubic feet of anthracite coal that acts as a pre-filter to the GS+ media. Backwashing of the treatment system occurs every day depending on the incoming levels of arsenic and the number of gallons processed.
Performance The system was started up and commenced in June 2012. Since the system began operation, the arsenic levels in the mine’s tailings pond were reduced from 54 ppb to below to MMER of 50 ppb.
For More Information Contact AdEdge Water Technologies, LLC Mr. Greg Gilles 5152 Belle Wood Court, Suite A Buford, Georgia 30518 678-835-0052 * 678-835-0057 Fax [email protected] www.adedgetechnologies.com AdEdge 08-13
