June 9, 2015 Blog
  1. Improved Agricultural Output: Growing global food demands have put a huge strain on today’s ecosystems- driving unsustainable farming practices across various continents. Biosolids have been used to fertilize a variety of crops including feed corn, wheat, soybeans, hay and pasture. Agricultural use of biosolids, that meet strict quality criteria and application rates, has been shown to produce significant improvements in crop growth and yield. Nutrients found in biosolids, such as nitrogen, phosphorus and potassium and trace elements such as calcium, copper, iron, magnesium, manganese, sulfur and zinc, are necessary for crop production and growth.
  2. Soil Improvement: The use of biosolids helps replenish organic matter which has been depleted over time. This same organic matter also helps promote aeration, improve the structure of soil and its ability to store moisture.
  3. Waste diversion from landfills: Over 10 million dry tonnes of biosolids are generated annually at North American wastewater treatment facilities- about half of which is incinerated or buried in landfills. Landfill disposal is increasingly cost prohibitive and, due to shrinking capacity and other concerns, is not considered a sustainable practice.
  4. Prevents Unnecessary Incineration: Incineration is capital cost intensive and does not offer value-added benefits to the environment such as a nutrient-rich organic fertilizer. Incineration can also cause both smog-forming and green-house gas emissions through both combustion products and energy requirements respectively.
  5. Reduced reliance on chemical fertilizers: Chemical fertilizers have been the focus of many scientific studies questioning potential impacts on health, the environment and sensitive cycles of the ecosystem. The application of biosolids on land reduces the need for chemical fertilizers. As more wastewater plants become capable of producing high quality biosolids, there is an even greater opportunity to reduce society’s current reliance on chemical fertilizers being used to meet growing global food demands.
  6. Regeneration of Abandoned Mine Sites: Biosolids have also been utilized to successfully establish sustainable vegetation in mine reclamation projects. In addition to being nutrient-rich and generating soil layer in sites with little or no topsoil, both the organic and inorganic content of biosolids can reduce the bioavailability of toxic substances often found in highly disturbed mine soils.
  7. Promotes Forestry: Biosolids can promote rapid timber growth providing for efficient harvesting of a valuable natural resource- and more sustainable management practices in the timber industry. It is well known that forests are valuable carbon sinks that play a key role in mitigating climate change.
  8. Helps prevent eutrophication relative to chemical fertilizers: The organic nitrogen and phosphorous found in biosolids are used very efficiently by crops since they are released slowly throughout the growing season allowing for better nutrient absorption as the crop grows. This reduces the potential of groundwater pollution of nitrogen and phosphorous – and the consequent eutrophication of ecosystems typically caused by over-fertilizing with chemically-formulated fertilizers.
  9. Tried, tested and true: Biosolids have been applied to agricultural land in Canada and internationally for more than 40 years. Land application is used by more than 80% of Ontario municipalities. This controlled land application of biosolids completes a natural cycle in the environment.If you have any questions about how Lystek’s proven process turns biosolids into a Class A quality fertilizer product, suitable for land application, contact us today.