Thursday, 29 Apr 2021 05:26 PM MYT
In the United States, corn is something of a national institution. The country is by far the world’s leading producer of the cereal, which is one of the world’s staple foods. However, corn cultivation generates large amounts of waste. Once the corn kernels have been stripped from plants, vast quantities of leaves, stalks and cobs are left behind. And millions of tons of this corn stover, as it is called, are burned every year.
The UC Riverside engineers discovered that processing the corn stover with hot compressed water, a process known as hydrothermal carbonization, produced an activated carbon that absorbed 98 per cent of the pollutant vanillin, in waste water from commercial vanilla production.
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