Biosolids Management

Our philosophy to biosolids management is simple – complete the cycle. We recover the valuable resources contained in this “waste” and return them to the earth where they belong.

Walker Environmental is an innovator in biosolids management. Our award winning facilities use the patented N-Viro® process to produce agricultural fertilizers, known as N-Rich®. Nutrient-rich and pasteurized, N-Rich® fertilizers are registered with the Canadian Food Inspection Agency under the Fertilizer Act.

Walker Environmental can find short-term relief and long-term solutions to biosolids management challenges. We offer a variety of design, build, own and operate services that can develop a facility that suits your needs.


  • Industry leader in the beneficial re-use of biosolids and other organic wastes
  • Award winning facilities in Banff, AB; Halifax, NS; Summerside, P.E.I; Leamington, ON; Sarnia, ON; Sudbury, ON; and Thorold, ON
  • Over 100,000 tonnes of biosolids processed annually through N-Viro®
  • Over 100,000 tonnes of N-Rich® fertilizers produced and sold annually