Turning Organic Waste into Valuable Resources
Walker provides proven organics processing solutions that help transform organic residuals into valuable resources, supporting a more circular economy while helping achieve long-term environmental goals.
With decades of experience in resource recovery, Walker is a trusted partner.
Organics Processing
Composting
Composting transforms organic materials into high-quality compost that can be used to improve soil health, support plant growth, and enhance water retention. Our advanced composting operations process municipal and ICI organics and yard materials through carefully controlled systems that maximize material recovery.
Leading the industry in the design, approval and operation of composting facilities.
Our clean, organized sites are carefully and scientifically managed to produce a premium quality compost product. Walker utilizes the patented GORE® technology to divert over 165,000 tonnes of organic materials from landfill annually while returning nutrients and organic matter back to the soil.
Anaerobic Digestion
Anaerobic digestion uses naturally occurring microorganisms to break down organic materials in an oxygen-free environment, producing renewable energy and nutrient-rich digestate.
Walker operates anaerobic digestion facilities that help recover both energy and nutrients from source-separated organic materials.
Biosolids Processing
Our philosophy is simple – complete the cycle.
Walker provides safe and reliable biosolids processing solutions that help municipalities recover valuable nutrients while meeting regulatory requirements.
Through proven treatment and beneficial reuse applications, biosolids can be transformed into a sustainable fertilizer that supports agricultural productivity.
AWARD-WINNING FACILITIES USING N-VIRO® TECHNOLOGY
With facilities in Alberta, Nova Scotia, Prince Edward Island and Ontario, we process over 100,000 tonnes of biosolids annually through our patented N-Viro® process. This process blends alkaline admixtures such as lime with dewatered biosolids and other organic wastes to produce a CFIA certified, sustainable agricultural fertilizer.
A Trusted Partner in Resource Recovery
Walker has spent decades helping communities’ recover more resources, reduce environmental impacts, and advance sustainability goals.
Our integrated approach combines operational expertise, environmental stewardship, and innovative technologies to ensure organic materials are managed responsibly and transformed into valuable resources.
Employing Aerobic Composting Technologies To Process Compost
Walker’s Thorold composting facility utilizes a combination of open-windrow composting and the GORE® Composting System to process and manage materials in accordance with composting regulations and guidelines. This Niagara location along with sites in Arthur, Ontario and Caledon, Ontario accept a range of organic compost materials and leaf and yard waste from residents, municipalities and industrial, commercial and institutional partners.
Providing on-site organic waste management solutions to grocery retailers to reduce waste volume.
Grinding Solid Food Waste To Free Up Valuable Retail Space
Our Organic Resource Recovery System is a built-in system for grocery stores that grinds solid food waste into slurry, reducing waste volume by up to 80%. The waste slurry is discharged into a holding tank outside of the store and held until it is collected by a vacuum truck. The system reduces the volume of waste while minimizing the space required to treat organics.
Learn more through Walker Grease Trap Services.
A Greener, Better Solution With Quality Outcome
We partner with municipalities to implement the N-Viro® process so that they can safely manage their communities’ biosolids. Through our environmentally sound and efficient process, biosolids are converted into soil amendments for agriculture. Our patented process has many benefits:
- Advanced alkaline stabilization with subsequent accelerated drying process means it takes hours rather than months to complete the process-to-product cycle
- Municipalities can take pride in their participation in an environmental process and building greener communities