Reducing the wastage of diminishing food resources and returning nutrients to the circular economy to contribute to the next production cycle is critical to our future.
Circular Food is all about closing the loop on food waste. Over the past 18 months we have been working hard behind the scenes building the foundations of a large company capable of having a significant positive impact diverting food organics from landfill and regenerating Australian soils.
We’ve studied all known technologies globally for extracting nutrients from food waste and getting them back into the soil, and we’ve maintained our focus on scalability, wanting to grow large and fast, where possible in partnership with existing solutions in the spirit of the circular economy.
What we have found is that worms produce high quality soil amendments from organic waste but in order to scale up a worm farm to have a sizable impact on food waste, a rural property is the only option, and then you get the negative of transporting food waste around the country.
In the city, we’ve found two technologies of great interest, AD (Anaerobic Digestion) and Food Waste Dehydrators (sometimes called organics units). AD can use food and other organic waste to extract methane which can then be used to generate electricity. A good example is Yarra Valley Water’s AD plant at Wollert in Melbourne. Food waste dehydrators are great for reducing the volume of food waste in densely populated areas where minimising truck movements is an important part of the solution.
Both the technologies mentioned here produce residual material with no clear value add – until now. After 18 months of focussed R&D including projects in partnership with CSIRO, Yarra Valley Water and Closed Loop, and with the support of AusIndustry’s R&D Tax Incentive Program, we have developed an organic fertiliser that closes the loop on the AD and dehydration processes and incorporates the beneficial soil microbes from worm castings.
BIG BIO Organic Fertiliser™
Our new product is called BIG BIO Organic Fertiliser™ and is derived from food waste and designed to close the loop on food waste by returning the nutrients from food waste to the soil. The product contains useful amounts of Nitrogen (N), Potassium (P), Phosphorus (K), Calcium (Ca), and Sulphur (S) in plant available form. Trace elements include Iron (Fe), Manganese (Mn), Boron (B), Copper (Cu), Zinc (Zn) and more. The product is also rich in soil microbes, the living organisms that are so vital to soil health.
BIG BIO Organic Fertiliser™ is in the final stages of development and set to change the game in the new circular economy.