St. Thomas Bets on a Waste-to-Wealth Future, But Can It Keep Its Promises?

ST. THOMAS, Ontario – June 30, 2026 – In a move to support a massive new industrial boom, the City of St. Thomas is doubling down on a technology that promises to turn municipal waste into a valuable resource. Lystek International Corp. announced today it will supply the core technology for the city’s new Dalewood Water Reclamation Facility (WRF), a project designed to convert biosolids—the organic matter left over from sewage treatment—into renewable energy and commercial-grade fertilizer.

The facility is a direct response to the anticipated needs of a new battery gigafactory and the sprawling Yarmouth Yards industrial park, developments that are set to redefine the region's economic landscape. While the press release paints a picture of sustainable innovation, the project represents a high-stakes test of whether a circular economy model can truly deliver on its environmental and economic promises while navigating a minefield of public concern and regulatory hurdles.

This isn't St. Thomas's first partnership with the Cambridge-based company. The city installed a Lystek system at its existing wastewater plant in 2018, a decision reportedly driven by significantly lower capital and operating costs compared to other options. The new, larger Dalewood facility will feature two advanced Lystek process trains with room for expansion, signaling a deep municipal commitment to the company’s vision of transforming treatment plants from cost centers into resource recovery hubs.

A New Blueprint for Biosolids

At the heart of the Dalewood project is a suite of Lystek technologies designed to extract maximum value from what was once simply waste. The process begins with Thermal Hydrolysis (THP), a method that uses low-temperature steam, alkali, and high-speed shearing to break down the cellular structure of biosolids. This makes the material pathogen-free and easier to process.

From there, a portion of the treated material is recirculated into an anaerobic digester through a process called LysteMize®. This step is designed to supercharge the digestion process, significantly increasing the production of renewable biogas. This gas can then be used to generate heat and electricity, reducing the facility's reliance on the grid and lowering its carbon footprint. According to research on similar implementations, this method can boost methane yield by over 20%.

The final, and perhaps most crucial, output is LysteGro®, a high-solids liquid fertilizer. Regulated by the Canadian Food Inspection Agency (CFIA), this product is rich in essential nutrients like nitrogen and phosphorus. Lystek manages its sale and distribution to local farmers, creating a revenue stream intended to offset the facility's operating costs. The city is betting that turning its waste into a marketable commodity will provide a sustainable, long-term financial and environmental solution.

The entire endeavor is being managed under a Progressive Design-Build (PDB) framework, a collaborative model that is being hailed as a first for a major water infrastructure project in Ontario. This approach involves the city, the lead contractor North America Construction, and design firms WSP Canada and J.L. Richards working together from the early stages to refine the design and manage risk before locking in a final price. The goal is to avoid the cost overruns and disputes that can plague complex public works.

The Progressive Promise and Its Perils

The adoption of the Progressive Design-Build model is being presented as an innovation in itself, one meant to foster collaboration and de-risk a complex, multi-million-dollar undertaking. Proponents argue that by bringing all partners to the table early, the PDB model allows for better problem-solving and more accurate cost projections, preventing the adversarial dynamics of traditional fixed-price contracts.

However, the model is not without its critics. In recent years, similar progressive contracting models used for major transit and healthcare projects in Ontario have come under scrutiny. A 2024 report from the province's Auditor General noted that some of these projects failed to attract competitive bids, sometimes resulting in a single contractor negotiating the terms. This lack of competition raises questions about whether taxpayers are truly getting the best value. While the PDB model promises efficiency and partnership, it also reduces the upfront cost certainty of traditional tenders and places immense trust in the collaborative process to control expenses. The Dalewood project will serve as a critical case study for whether this model can live up to its promise in the municipal water sector, or if it will face the same challenges seen elsewhere.

From Biosolids to Breadbasket: A Complicated Harvest

The economic logic of the LysteGro fertilizer program seems unassailable: provide farmers with a cost-effective alternative to expensive chemical fertilizers, improve soil health with organic matter, and generate revenue for the city. For a region heavily invested in agriculture, a local, reliable source of fertilizer that also sequesters carbon in the soil appears to be a clear win.

Yet, the practice of using treated human waste on agricultural land, no matter how advanced the treatment, remains a subject of public apprehension. Across North America, communities have raised concerns about odors, potential water contamination, and the cocktail of chemicals that find their way into our wastewater systems. The most pressing of these concerns today revolves around PFAS, the so-called “forever chemicals” found in everything from non-stick pans to firefighting foam, which are known to accumulate in the environment and the human body.

In October 2024, the CFIA began requiring tests for PFAS in biosolids, setting a limit of 50 parts per billion (ppb). Lystek’s THP process is designed to create a sterile, Class A product that meets all federal and provincial safety standards. Furthermore, the company's practice of subsurface injection is intended to minimize odor and prevent runoff. However, some environmental and health advocates argue the 50 ppb limit is not stringent enough, with farm bureaus in other jurisdictions calling for near-zero tolerance. For farmers, the risk of introducing persistent contaminants into their soil is a significant concern that weighs against the economic benefits.

As construction on the Dalewood facility gets underway, its future success will be measured on multiple fronts. It must not only perform technologically and financially but also earn and maintain the trust of the community and the farmers it aims to serve. The project is a bold blueprint for the future of municipal infrastructure, but its legacy will depend on its ability to prove that the path from waste to wealth is not just profitable, but unquestionably safe.