Simple Water

This weekend, I had a discussion with a colleague in the water and wastewater industry about technologies and ideas for upgrades to an existing treatment plant. “I told them that they were nuts to be considering slow-sand filtration when the technologies are out there such as membrane filtration”, he said. I held my tongue. While …

Revitalizing a Slow Sand Filter

Last week we replaced the sand in two of the filters in the Rossland Water Treatment Plant. This is a slow sand filter system and the sand hasn’t required refilling since the plant was comissioned over a decade ago. The method used to place the sand is fast and efficient use of labor, with minimal …