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British scientists have demonstrated through experimentation that microwave irradiation can turn food residues into important chemicals and biofuels. The new method enables people to dispose of discarded food at the factory or home, not only providing renewable energy, but also helping to solve the growing problem of food waste worldwide.
Professor James Clarke of the University of York, UK, introduced the technology at the recently held Science Festival in the UK. They plan to establish a demonstration facility in York at the end of this year. He said that using highly focused microwaves, any organic food waste can be turned into useful compounds for materials science and biofuel applications.
Many farms, factories, and consumer homes around the world produce large amounts of organic waste that is discarded. For example, in Africa, the process of making cassava produces 228 million tons of unused starch every year; in Europe, producing coffee produces 3 billion tons of waste each year. Most of the British waste comes from agricultural residues, including unused leaves, stalks, cereals, and the shell of crops. In Brazil, when manufacturers make orange juice, the annual waste of oranges adds up to 8 million tons.
OPEC plans to introduce new technologies developed at York University to extract biofuels and chemicals from cellulite and waste. Clarke explained: "The orange peel is cut into small pieces and placed in a microwave field, so that the microwave field is concentrated (just like using a domestic microwave oven, but its energy is higher). It activates cellulose and induces them to release. A large number of chemicals, for example, one of the chemicals, lemon essential oil, can be directly used to make perfumes or other chemicals that people desperately need. The chemicals extracted from these orange peels can eventually be used to make biofuels that can replace petroleum. ."
Clarke said that the microwave technology will be able to handle any material containing cellulose, especially for paper and cards. Although this technology is still in the testing phase, it can be used to handle a lot of waste and can be applied to various scales. At present, because the production of microwaves requires a lot of energy, there are some restrictions on the size of the device, but the microwave machine can eventually be large or small, can be used in the home, it can also be applied to large-scale industrial production, but also Very easy to transport.
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