Wastewater treatment plants convert effluent (water that has been used for some industrial or public purpose) into water that can be either returned to the water cycle with minimal environmental issues or reused.
Wastewater treatment plants remove large amounts of contaminants and organic matter from the wastewater stream, thereby improving water quality. However, the effluent from wastewater treatment plants can still have higher concentrations of nutrients and other contaminants than natural surface water. Therefore wastewater treatment plants are considered a “point source” of pollution in the environment.
The City of Calgary online tour provides an example of the processes undertaken at a wastewater treatment plant. When wastewater reaches a plant, it passes through screens that remove large materials such as plastic bags, toilet paper, paper towels, sticks and tennis balls. It then passes through a series of tanks where solids settle, and oils and grease are skimmed off the top. Effluent is then digested by microorganisms that remove much of the nutrients and organic material. Water is then clarified by settling, and finally, filtered and disinfected prior to being released into the river.
There are numerous contaminants in the wastewater stream which are not completely removed by wastewater treatment processes. Many of these contaminants are from everyday products (e.g., medicines, household materials) and their downstream impacts are not fully understood. Some of the contaminants that are not removed by the wastewater treatment process can impact aquatic species. More information can be found on the fact page for Emerging Contaminants.
The smooth operation and maintenance of our wastewater collection systems and treatment facilities depends, in large part, on what we collectively put down our drains. Grease, disposable wipes and hygiene products can cause local and systemic issues in collection systems and treatment facilities. Issues can include pipe clogging and disruption to the biological treatment processes typically at work in treatment facilities. This increases costs and ultimately results in increases of taxes or utility rates for end users.
Individuals can help to reduce the level of nutrients, contaminants and debris in our wastewater collection and treatment systems by:
Household hazardous waste must be disposed of properly, and not allowed to leak or spill. Hazardous wastes include bleach and ammonia, batteries, latex and oil-based paints, lacquers and varnishes, oven cleaners, and petroleum-based products such as motor oil and gasoline. Hazardous wastes should be dropped off at a household hazardous waste drop-off location.
Alberta’s provincial standards are more stringent than the national performance standards. The Government of Alberta has taken numerous steps to ensure the protection of surface waters, including the development of the surface water quality guidelines, and a requirement for a receiving waters assessment. For example, The City of Calgary’s Total Loading Management Plan (TLMP) is required by Alberta Environment and Parks for The City to operate their wastewater treatment plants.
Another potential for reducing the amount of effluent that is returned to the river is the re-use of the effluent for various purposes, such as irrigation. The Government of Alberta has Guidelines for Municipal Wastewater Irrigation that outline specific water quality and other requirements to undertake this activity. Alberta Environment and Parks is also developing a Water Reuse and Stormwater Use Policy that will outline other ways that treated wastewater can be used to avoid discharge into our natural waterways.
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Ross has extensive executive experience in Operations, Governance, Information Technology and Strategy at the board and senior management level including Mancal Corporation, Mancal Energy, Highridge Exploration and Atlantis Resources. He has worked in Oil and Gas, Coal, Commercial Real Estate, Portfolio Management, Recreation, Retail and Water and Wastewater Treatment. His experience is also geographically diverse having overseen operations in Canada, the United States, United Kingdom and Northern Ireland. Additionally, he has been on the board of companies with operations in Argentina, Azerbaijan, Barbados, Kazakhstan, and Russia. He has served on numerous Public, Private and Not for Profit Boards across a number of industries.
Ross has been active on several industry Boards and committees including the Canadian Association of Petroleum Producers (CAPP) and The Schulich School of Engineering Industry Advisory Council at the Schulich School of Engineering.
Brian is a seasoned Cleantech entrepreneur with a proven history of successfully bringing complex water technologies to the market. With over 25 years of experience, he has led various organizations to achieve significant milestones in the industry.
Having started as the founding CEO of the Pressure Pipe Inspection Company (PPIC) and later taking the helm at the Water Technology Acceleration Project (WaterTAP), Brian’s entrepreneurial spirit has been instrumental in driving innovation and growth within the sector.
He is an active investor in the cleantech sector and has served on many boards including the Ontario Clean Water Agency.
Actively engaged in industry associations like AWWA, WEF, IWA, and ASCE, Brian enjoys collaborating with fellow professionals to promote advancements in the field.
Brian holds an undergraduate degree and a PhD in Physics from Queen’s University, which has provided him with a solid technical foundation. As a member of the Institute of Corporate Directors, he brings valuable insights to corporate governance.
