FOOD WASTE


Natural decomposition within 24 hours. An estimated 8-10 per cent of global


greenhouse gas emissions are associated with food that has not been consumed. Food waste going to landfill gives off both carbon dioxide and methane, and methane is 25 times more harmful that carbon dioxide.3


Food waste solutions The founders of Green Eco Technologies identified the need to change this situation and provide organisations with a solution to minimise the impact of their organic waste on the environment by developing, supplying, and managing innovative and efficient technology for the onsite conversion and repurposing of food waste to a reusable resource. The patented WasteMaster recycling


technology diverts food and other organic waste from landfill, from being flushed into the sewer system, or incinerated, reducing future damaging effects on the environment including greenhouse gas emissions. Whether food waste is from


preparation, or cooked food leftovers, this technology cleanly and efficiently recycles and reduces this waste, onsite, leaving a much smaller quantity of pathogen-free and odourless, nutrient-rich residual material. Traditional methods of food waste management transfer the problem away from hospitals but in doing so often create another issue. Every year in the UK, approximately 1 Mt of food waste is still sent to landfill, emitting nearly 620,000 Kt CO2


e. Waste to water, although no longer


permitted in Scotland and Wales, still accounts for 1.5 Mt being flushed into the sewer.4


This leads to the inevitable build-


up of fats and grease in our sewers and pushes the problem underground and out of sight – until the costly drain repair bill arrives, not to mention the wasting of up to six litres of water for every kg of food waste. Transporting food waste to anaerobic


IFHE DIGEST 2023 89


digestion plants provides a more sustainable solution, repurposing the food waste into a resource to create energy, and starting the process of an improved circular economy. However, food waste is bulky, heavy, has a strong odour, and attracts pests and vermin. The hygiene issues created by storing food waste onsite necessitate frequent truck movements for bin collections and an increase in the associated emissions caused by these vehicles. It is those concerns that Green Eco


Technologies sought to address. After a long process of research and development, and several stages of beta testing, a proven commercial solution for food waste was launched. The WasteMaster


speeds up the natural decomposition of food waste within a 24-hour period, releasing the moisture from the food and evaporating this safely into the atmosphere. The food waste is reduced by up to 80 per cent during the process, leaving a dry, odourless compost-like residual material that is no longer attractive to pests or vermin. The sanitised and pathogen free residue is then automatically unloaded and can be safely stored onsite in this condensed format until it is collected weekly, or even monthly, thereby reducing vehicle movements on the road and transportation costs. This technology not only diverts food waste away from landfill and the sewer


Managing food waste sustainably should be a priority focus for both private and public healthcare settings


©Olga Yastremska, New Africa, Africa Studio


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