For subscribers
Where does your food waste go?
Developers investing in systems that turn it into sludge for better disposal, amid drive to lessen environmental impact
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Derek Wong
It is a common refrain in foodcourts these days - "please return your trays". But what happens to the leftovers after you do so?
Food waste is usually dumped in bins before it is collected together with general waste and taken to the incinerators to be burned, which strains the environment.
