Simple residuals management system saves $6 million for water treatment plant
Municipal | DATE POSTED: January 31, 2022
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. Conventional equipment to separate and dewater those residuals is often costly, but not for the Perth WTP.
The Perth WTP saved about $6 million in capital costs by implementing the Bishop Solids Management Solution to collect and dewater the sludge from its sedimentation tanks. This simple, low-eenrgy system uses only Geotube® containers, polymers and gravity to collect and dewater the residuals in a single step.
Read the case study to learn how the Bishop Solids Management Solution works and why it’s ideal for the Perth WTP.Â
Simple, cost-effective sludge management in the far north
Municipal | DATE POSTED: October 6, 2021
The Pangnirtung WWTP, on Baffin Island, experiences below freezing temperatures for eight months of the year, which means every process must be indoors—even sludge management. A centrifuge or belt press was considered for sludge management, but the complexity, cost, high energy usage and limited access to parts made them impractical for the Arctic community.
Instead, the plant uses the Bishop Solids Management Solution, which relies on Geotube® containers, polymers and gravity for low-energy sludge collection and dewatering.
Read the case study to learn how our system makes a big difference for the small plant.
BioCord™ pilot system proves mettle for cold-weather ammonia removal
Pulp and Paper | DATE POSTED: September 13, 2021
Onsite wastewater lagoons at a petrochemical manufacturing plant in Western Canada were experiencing difficulty in meeting the ammonia discharge limit during cold-weather conditions. The three-cell lagoon system provides pretreatment of the facility’s sanitary and process wastewater before the effluent is released to the municipal sewer. But during the winter months, the system struggles to achieve the discharge limit set by the city.
Learn how our simple, low-energy BioCord pilot system demonstrated 97% ammonia removal under some tough conditions.
Coping with rising phosphorus loading at a municipal WWTP
Municipal | DATE POSTED: September 13, 2021
Greenhouses are growing rapidly in Kingsville, Ontario and along with them is the volume of nutrient-rich wastewater that is sent to the community’s Lakeshore West Water Pollution Control Plant (LWWPCP). The plant consistently meets regulatory limits for phosphorus removal; however, public works managers are taking steps to ensure it will continue to do so as nutrient loading increases. Maintaining tight control of phosphorus discharge is also critical to mitigate harmful blue-green algae blooms that are increasingly occurring in Lake Erie.
Learn how ClariPhos™ Rare Earth Coagulant could replace ferric chloride to improve phosphorus removal at the plant and avoid costly capital projects to expand clarifier capacity or add tertiary filtration systems.
Lagoon sludge removal provides affordable solution for algae and H2S issues
Municipal | DATE POSTED: September 13, 2021
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.
Simplifying arsenic sludge management at a gold mine
Mining | DATE POSTED: August 19, 2021
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.
Potato processor treats and reuses wash water with simple, affordable dewatering system
Agricultural | DATE POSTED: July 28, 2021
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.
Bishop Water’s Customizable VEPAS
General Geotube® Info | DATE POSTED: April 12, 2018
Bishop Water’s Venturi Emulsified Polymer Activation System (VEPAS) is customizable and specially designed for each project.
DOWNLOAD PDFBishop Water Testing Methods
General Geotube® Info | DATE POSTED: February 22, 2018
Bishop Water uses bench testing to determine optimal polymer type and dosing rate. Here are the different testing methods we use that provide our clients with different levels of certainty from RDT cone tests to pilot scale testing.
DOWNLOAD PDFEstuary Remediation Using Geotube® Dewatering Technology
Light Industrial | DATE POSTED: January 18, 2018
Canal do Fundão is a 6 km long artificial estuary formed in the early 1950’s. Over time sediment has built up in the canal and it has not been able to self-flush for the last 20 years. A comprehensive testing program for contaminant types and concentrations was carried out along the length of the canal. It was decided to dewater the dredged contaminated sediments in specially designed cells using Geotube® dewatering containers. Once the dewatering was completed the cells would be capped and vegetated and become part of the natural landscape of Fundão Island.
DOWNLOAD PDF