Arsenic-laden groundwater continually infiltrates the shafts of a gold mine in Western Canada. As it’s pumped out, an onsite treatment system removes the arsenic to produce effluent that can be safely released. But the system also produces large volumes of sludge—about 1,900 litres every 45 minutes. The sludge was a challenge for the site’s existing media filtration system and a faster, more reliable and more cost-effective solution was needed. Learn how the Bishop Solids Management Solution provided a simple, low-energy solution that achieves dewatering, filtration and containment in a single step.
Sludge accumulation was thought to be causing significant operational challenges for the O’Leary Wastewater Treatment Facility (WWTF). The lagoons were experiencing serious blooms of blue-green algae during the summer months and exceedances of TSS, BOD and coliform bacteria in treated effluent. Hydrogen sulfide (H₂S) gas, which was also attributed to the algae and sludge, was building up in a below-grade chamber that housed the plant’s UV disinfection system. Read the full case study to learn how our Bishop Solids Management Solution and Lagoon Cleanout Services helped solve the problem.
Sludge management is challenging for the remote Hamlet of Pangnirtung, Nunavut on Baffin Island.