Case study on the effectiveness of the Geotube® technology for dewatering the waste stream at a northern ontario mining opteration.
The township of North Glengarry operates a four-lagoon cell system in the Village of Alexandria, Ontario for the management of sewage sludge. Many municipalities utilize lagoon systems across Ontario to manage sewage, however lagoons require maintenance and periodic sludge removal in order to operate effectively and efficiently on an ongoing basis.
The City of Vaughan required sediment removal of three separate storm water management ponds. The city wanted to have a minimal impact on the surrounded communities and watercourses.
CASE STUDY The challenge: Avoiding the high cost of a complex, mechanical residuals management system A water treatment plant (WTP) can generate a significant amount of residuals from processes such as clarification, sedimentation, softening, iron and manganese removal, filter backwash and more. Dealing with these residuals often requires additional equipment and oversight to collect, thicken […]
Sludge management is challenging for the remote Hamlet of Pangnirtung, Nunavut on Baffin Island.
High-TSS wash water can cause storage ponds to fill quickly with sediment and increases the risk of overflow. Learn how an Ontario-based grower used the Bishop Solids Management Solution to create a simple system that collects and consolidates solids while producing low-TSS filtrate that can be reused in the washing process.
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.