Video credit: TODAYdigital
Two students from Singapore Polytechnic (SP) have developed a low-cost water filtration cartridge that can help ease the shortage of clean water in rural Vietnam, according to Singapore’s online Today newspaper.
Students Sandy Loh and Koh Yong Xiang created the Gravity Filter cartridge under the guidance of Dr. Adrian Yeo, who is a research fellow at the Environment and Water Research Institute of Nanyang Technological University. The filter costs only SGD 11 (about VND190,000) and can last up to two years.
Yeo said they have done some work in Vietnam and hope to offer a sustainable method of providing clean water to people who live in remote areas.
The Gravity Filter consists of hollow-fibre polysulfone membranes with a pore size of 0.1 microns that block almost all harmful bacteria and micro-organisms. It requires no energy input and produces 200-600 millilitres of clean water per minute.
The research group says the filter is cheap and uses readily available technology.
A pilot test of 50 filters will be conducted in Vietnam next month.