Turning waste into energy

Turning waste into energy

Prof Wang (2nd from right) with team members (from left) Dr Yong Siming, Research Fellow, NUS Environmental Research Institute; Mr Ng Wei Cheng, Research Engineer, ChBE; and Shen Ye, PhD student, ChBE

After five years of research, Professor Wang Chi-Hwa and his team from NUS Chemical and Biomolecular Engineering found a way to turn animal waste into synthesis gas (syngas), a mixture of hydrogen and carbon monoxide to produce electricity, and biochar to treat water.

Following a series of tests, it was discovered that 10kg of animal manure can generate 10 kilowatt of electricity through a process known as gasification. In fact, by burning the waste for an hour, one is able to light a 60-watt light bulb for 167 hours! The team also noted that the process produces biochar, a form of charcoal, which can improve soil quality.

Their findings have piqued the interests of the National Parks Board (NParks) and the Agri-Food and Veterinary Authority of Singapore (AVA), and the team is now looking to expand their findings on a larger scale.

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03 November 2017

November 3, 2017

Turning waste into energy