News

A research group led by Professor Michael Tam has developed a new water-based pesticide delivery formulation that dramatically improves how pesticides stick to plant leaves even in wind and rain.

Early field trials conducted with an industrial partner in Singapore demonstrated the potential of the technology. Cabbage plots were seeded with insect pests and the water-based formulation outperformed conventional pesticide systems, delivering better pest control using less active ingredients.

Current pesticide delivery systems rely on chemicals and solvents to help pesticide droplets stay on plant leaves and spread, which can be harmful to the environment.

 Standard practice is crops are protected by pesticides via liquid sprays using nozzles, mist sprays or from airplanes as a result, pesticides do not always reach their intended target, bouncing off plant leaves, drifting into the air or washing into soil and waterways leading to economic loss for farmers and environmental contamination.

Professor Boxin Zhao has been elected as a Fellow by the Canadian Academy of Engineering (CAE). CAE Fellows are nominated and elected by their peers in recognition of their outstanding achievements and lifelong contributions to the field of engineering.

“I’m honored to be elected as a CAE Fellow because this recognition goes beyond academia to engineering practice. I’m grateful that my work is acknowledged by engineers working in industry and across society,” says Zhao.

Zhao’s research centers on creating advanced functional materials aimed at addressing pressing industrial and environmental challenges, with a particular focus on understanding and engineering surface adhesion and interfacial interactions.

His research group has utilized polymer nanotechnology to create smart materials that interact with light, heat, and humidity, enabling novel applications in advanced manufacturing, including soft robotics and flexible electrical devices.

Each year, the Capstone Design Symposium stands as a defining milestone for our graduating students, marking the moment when years of study, experimentation, and hands‑on learning culminate in original engineering solutions.

This year’s graduating class identified meaningful problems, developed innovative approaches, and created their projects under the guidance of instructors, mentors, and industry partners.

Students tackled challenges as diverse as designing environmentally friendly glitter for cosmetics that avoids the microplastics found in most commercial products to developing early fault detection systems for lithium‑ion batteries to improve safety and reliability.

This year there were eight winning teams. Group 1 won the Bhattacharyya Capstone Design Award, valued at up to $3,000. This award is made possible through the generosity of Dr. Dilip and Mrs. Manjusha Bhattacharyya.

The Department of Chemical Engineering continues to advance its role as leader in sustainability, pioneering innovative solutions to reduce its carbon footprint.

Demonstrating a steadfast commitment to sustainablility teaching and practice, the Department of Chemical Engineering achieves Green Lab Gold Certification of its undergraduate teaching labs in the Douglas Wright Engineering Building (DWE).

The labs earned Green Lab Gold Certification for the second year in a row, with a higher score than last year!

It’s clear that sustainability is more than a buzzword for the department; the certification demonstrates the department’s focus on sustainability as an integral part of how experiential learning is designed and delivered.

“I am thrilled to see the work from Chemical Engineering to integrate sustainability into labs. Labs are areas of high resource intensity and environmental impact, and the team has identified meaningful activities for operational improvement,” says Mat Thijssen, Director of Sustainability at the University of Waterloo.

Professors Luis Ricardez-Sandoval and Pascal Poupart received $480K from the Bank of Montreal (BMO) and MITACS to design reinforcement learning tools for rare earth element (REE) recycling. The four-year interdisciplinary project between the Department of Chemical Engineering and Cheriton School of Computer Science will use reinforcement learning (RL) to design more efficient, sustainable recycling systems for REEs.

RREs are essential to global economies and used in a wide range of high-tech applications. They are used in the electronics, clean energy, aerospace, automotive, and defence industries to create products like cell phones, computers, batteries, MRI machines, jet craft, lasers, LEDs and more.

Canada is invested in being a global leader in critical‑mineral recycling and leveraging its resources to strengthen national security and promote economic growth. As demand for batteries, semiconductors, and clean‑energy technologies accelerates, Canada is looking beyond traditional mining.

“Eventually we’re going to run out of those mining resources, and we will need to recycle rare earth elements using advanced systems that can reduce waste, capital expenses and energy consumption,” says Ricardez-Sandoval, Director of the Chemical Process Optimization, Multiscale Modelling and Process Systems Group

A chemical engineering research group led by Professor Tizazu Mekonnen has developed an eco-friendly super absorbent hydrogel that could dramatically reduce the environmental impact of personal hygiene products like diapers, menstrual pads and tampons.

Unlike current products, which take centuries to break down, this new material degrades harmlessly in soil within three months.

In North America, billions of disposable diapers end up in landfills annually, according to the U.S. Environmental Protection Agency (EPA) taking up to 450 years to decompose.

Around 1.8 billion women menstruate monthly, and most single-use menstrual pads and tampons also end up in landfills. These products are about 90 per cent plastic and can take up to 500 years to break down, according to the United Nations Environment Programme.

A team of graduate students from the Department of Chemical Engineering earned an impressive second place in the WEF Technical Exhibition and Conference (WEFTEC).

The student team, supervised by Professor Sarah Meunier, first won the Water Environment Association of Ontario (WEAO) competition. The contest, a municipality that provides a current and relevant problem.  After that the team, sponsored by WEAO moved on to a second-place win at WEFTEC.

WEFTEC is the largest water quality exhibition in North America, and they hold an annual international student competition. The University of Waterloo team, which included Joseph Wortman, Rosa Maria Castillo, Maryory Ocana and Jinxuan Zhang competed against students from universities from across North America in the new Circular Water Economy category.

The teams were tasked with optimizing a wastewater treatment plan in Barrie. One of the biggest real-world hurdles is that Barrie expects its population to double by 2051, but the treatment plant itself has no room to grow.

Chemical engineering professors are taking on the problem of plastic waste in the environment by leveraging synthetic biology to turn plastic waste into valuable resources.

“We’re stepping out of our silos to advance sustainability,” says Professor Marc Aucoin. “The question is: can we use biology—or can we tune biology—to aid us in tackling plastic pollution?”

The answer may well be yes. The research group recently co-authored an overview of strategies to leverage synthetic biology, microbial engineering and engineering design to degrade and upcycle plastic waste.

Professor Christian Euler, Waterloo’s lead for the Center for Innovative Recycling and Circular Economy (CIRCLE) in a recent study is investigating whether feedstocks derived from plastic waste could provide the energy to drive carbon dioxide (CO₂) conversion.

 The ScotiaBank Climate Action Research Fund is being awarded to Professor Christian Euler for a groundbreaking approach that aims to use bacteria to transform combined waste streams, including plastic-derived waste and CO2 into sustainable products such as bioplastics.

The ScotiaBank Climate Action Research Fund is granted to scientists and engineers whose research will advance climate-related initiatives.  Euler’s project offers a glimpse into a future where waste is not a problem to solve—it’s part of the solution.

“Innovation and research are important in the transition to a lower-carbon economy,” said Kim Brand, Vice President, Global Sustainable Business at Scotiabank. “At Scotiabank, we believe that research and collaboration can unlock practical solutions for businesses, communities, and individuals alike. The goal of the Climate Action Research Fund is to support initiatives, like the one underway at the University of Waterloo, to come to life in support of solutions for a more sustainable future.”

Euler’s research group could potentially create tailored biopolymers with specific properties by adjusting the bacteria’s feedstock. For instance, biopolymers could be created for use as biodegradable packaging. 

Chemical engineering alumni Jacqueline Hanton and Kayli Smith (both BASc ’20) founded a start-up called Friendlier in 2019. The company is dedicated to addressing Canada’s single-use plastic problem.

Hanton and Smith both did a study term in Sweden during their undergraduate degrees. This experience opened their eyes to the power of conscious consumerism and ignited a shared determination to preserve the planet and minimize the effects that humans are having on the environment—leading to the creation of Friendlier.

Since 2019, Hanton and Smith have raised a total of $10 million and prevented 3.7 million food and beverage containers from ending up in landfills. Friendlier has expanded its operations and now has 200 locations in Ontario, British Columbia, Nova Scotia, Manitoba, and Quebec, quickly building a national presence.