Rainy River Water Treatment Study and Systems Upgrade
Facing a public health risk from elevated carcinogen levels in its drinking water, the Town of Rainy River needed a practical solution that fit within their existing plant footprint to remedy the situation. KGS Group, in collaboration with the University of Manitoba, conducted detailed pilot studies comparing ion exchange and nanofiltration to determine the most effective, operationally feasible way to reduce carcinogen levels in the drinking water.
Ion exchange was selected because it avoided costly building expansion and offered simpler operations and maintenance for the Town. We then provided engineering services for the design, construction and commissioning of the new ion exchange treatment system, integrating it with the plant’s existing processes and controls.
The upgraded system exceeded Health Canada’s Guideline for Canadian Drinking Water Quality for carcinogens and reduced chlorine consumption by 40%. The project addressed a serious health concern while optimizing use of Rainy River’s existing assets. The Town also received a commendation from the Ontario Ministry of the Environment and Climate Change in recognition of the project’s success.
Project Highlights
- Designed the new ion exchange system and integrated it with existing plant processes
- Reduced chlorine consumption levels by 40%
- New system exceeds Health Canada’s Guideline for Canadian Drinking Water Quality
Town of Ogema Water Treatment Plant
To address persistent water quality issues in the Town of Ogema, KGS Group designed a new treatment solution to improve taste and reduce dissolved minerals. The existing greensand filters had been relatively successful in removing high iron and manganese, but were not capable of removing elevated alkalinity, sulfates, hardness and total dissolved solids from the groundwater supply drawn from two nearby wells.
To increase the palatability of the finished water, KGS Group was retained to provide detailed design services for a brand-new water treatment plant using reverse osmosis membranes. A pilot study was first conducted to determine if direct feeding the reverse osmosis membranes from the wells would be an acceptable long-term solution. With great success from the study, the final design for direct feed membranes was completed in early 2019. The work also included design and construction of a new below-grade concrete reservoir, building and vertical turbine distribution pumps.
The new plant was commissioned in early 2020 and has received significant praise from the town for exceptional water quality.
Project Highlights
- Conducted a pilot study to determine the best long-term solution
- Provide detailed design services for a brand-new water treatment plant using reverse osmosis membranes
- Design and construction of a new below-grade concrete reservoir