In the proposed study, biochar will be produced from selected vegetable waste (spent coffee grounds and tea leaf residue) through pyrolysis. The sorption mechanisms (adsorption and desorption) of the persistent toxic substances (PTS) mixture, including arsenic (As), zinc (Zn), lead (Pb), mercury (Hg) (total and methylmercury (MeHg)), dichlorodiphenytrichloroethane (DDT), phthalates esters (PAEs), perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) by different size of vegetable-based biochar will be investigated.
The goal of this project is to test experimentally the impact of two different classroom SSA methods as well as to examine the mechanisms by which SSA processes influence student learning.
Dr Isabella Ng Fung-sheung, Assistant Professor and Associate Head (Teaching and Learning) at the Department of Asian and Policy Studies, The Education University of Hong Kong, won the “Good Teacher Award” under the eighth “Good Students, Good Teachers Commendation Scheme”, organised by the Mr Szeto Wah Education Fund of the Hong Kong Professional Teachers’ Union.
In the past few weeks, Hong Kong has witnessed the triumph of democratic institutions. The High Court declared the anti-mask legislation unconstitutional. The district council elections witnessed the overwhelming victory of pro-democracy candidates...