Wastewater Treatment
Wastewater treatment solutions
Wastewater isn’t just a challenge—it’s a resource. At Stantec, we help clients unlock wastewater treatment potential with advanced, cost-effective solutions. As regulations tighten and systems grow more complex, we guide you from assessment to innovation using tools like hydraulic modeling, condition analysis, and resource audits to optimize performance and resilience.
Backed by global design expertise, we deliver high-performance, compliance-focused advanced water treatment solutions and resource recovery strategies. We help wastewater treatment plants boost capacity and efficiency using densification tools to deliver scalable solutions without major construction.
We don’t just treat water—we’re redefining wastewater management. We lead in process intensification and technologies like densified activated sludge (DAS), biological nutrient removal (BNR), and membrane aerated biofilm (MABR). Our innovations lead the way in process intensification for wastewater treatment plant upgrades and sustainable treatment. We are also at the forefront of thermal hydrolysis process (THP) technology and the circular economy with innovative energy recovery, turning biogas into plant power and transforming biosolids into valuable soil amendments.
By focusing on emerging contaminants, digital tools, and sustainable practices, we’re redefining the wastewater utility of the future. Our mission: simplify treatment, empower operators, and build intelligent systems that adapt and scale with change.
One Water in action
Our One Water approach centers on turning wastewater into something useful. Our wastewater purification process includes treatment systems that recover nutrients, generate energy, and produce reuse-ready effluent. Advanced tools like special filters, oxidation, and smart monitoring make the process efficient, adaptable, and reliable. Water reuse systems close the loop reducing demand on freshwater sources, building resilience, and helping communities be better prepared for climate challenges. Read MoreSustainability through biosolids management
Stantec helps communities manage biosolids—the organic material leftover from treating wastewater—by finding safe, sustainable ways to process and dispose of it. This work reduces waste, cuts carbon emissions, and can create renewable energy. The team also tackles tough issues like PFAS and other emerging contaminants, while exploring ways to recover energy and nutrient reuse. The goals? Zero waste, regulatory compliance, and protecting the environment and public health. Read MoreBiological nutrient removal (BNR)
BNR is a process that uses natural microbes to remove nitrogen and phosphorus from wastewater. Our teams help utilities use both standard and advanced BNR systems—like partial denitrification and anammox (PdNA)—to save energy, cut costs, and reduce carbon emissions. Our designs are built for flexibility, support sustainable goals, and help utilities stay ahead of future regulations. Read MoreMembrane aerated biofilm reactor (MABR)
MABR is a compact wastewater treatment technology that saves energy by delivering oxygen directly to biofilms through special, gas-permeable membranes. It improves nitrification, uses less blower energy, and works well even under tough conditions for resilient nutrient removal. Our teams are helping advance MABR into wider use by testing it at full scale and combining it with densification techniques and data-driven design tools. Read More
Our People
-
Pusker Regmi
Sector Leader - Wastewater
-
Sara Arabi
Principal, Practice Leader
-
Chris Machado
Senior Principal, Regional Delivery Leader, Pacific Water
-
Pat Coleman
Regional Practice Leader, Wastewater
-
Olav Natvik
Project Manager
-
Julian Xheko
Principal, Process Engineer
-
Nicole Stephens
Senior Associate, Water
-
Keli Callahan
Senior Principal, Business Development Leader
-
Yuan Fang
Senior Process Engineer
-
Saibal Basu
Principal, Water/Wastewater Treatment Team Lead
-
Shelley Trujillo
Senior Principal, Regional Practice Leader, Water
-
Andi Yazdanpanah
Process Engineer
We’re better together
-
Become a client
Partner with us today to change how tomorrow looks. You’re exactly what’s needed to help us make it happen in your community.
-
Design your career
Work with passionate people who are experts in their field. Our teams love what they do and are driven by how their work makes an impact on the communities they serve.