Hi! I am Kinsey Yiu from Singapore. I’m currently 16 years old and a Secondary 4 student at Hwa Chong Institution. I live with my family, which consists of my parents and older sister, who often provide me with care and support. I am a part of my school’s Science and Math Talent Programme, which has provided me with the opportunity to partake in research projects. In my free time, I enjoy playing chess with my family and friends. My favourite musical instrument is the harmonica as I like composing (more accurately convincing myself that I am succeeding) my own melodies. I also enjoy watching comedy shows like Yes Minister and Mr Bean.Tell us what the water concern in your country is!
With Singapore being a city-state, she has a limited water supply. Singapore has thus launched the 4 taps policy - that being water from local catchments, imports, desalination and NEWater. Nonetheless, we do not take water for granted. Singapore prioritises researching cost-effective, sustainable water treatment technologies.
Adsorption by activated carbon is conventionally used for wastewater treatment but is inefficient for pharmaceutical wastewater purification. This study investigates a novel, low-cost electrochemical enhancement of activated carbon fibre (ACF). With 1.0V applied, ACF’s effectiveness in removing acetone, a common pollutant in pharmaceutical waste, was increased by 107%. Over three cycles of adsorption and regeneration, the original effectiveness of unenhanced ACF plunged by 39.2%, while that of electrochemically enhanced ACF remained over 90%, demonstrating its increased reusability. A self-constructed prototype integrated electro-sorption and regeneration into one central chamber, allowing wastewater to be continuously purified as part of a cyclic process.