Green Living: Award-Winning Hong Kong Scientist’s Innovation Turns Sewage Sludge into Energy, Slowing Down the Impact of Climate Change
by Eric Ng (South China Morning Post) Sewage sludge used as feedstock to make methanol cuts down carbon emissions by a quarter compared to coal as the raw material, Polytechnic University professor Ren Jingzheng says; If all 1,200 tonnes of