New Water Purification Invention on Trial
Published on by Water Network Research, Official research team of The Water Network in Technology
HKUST Researchers Teamed up with Electroplating Firm in Shenzhento Test Out a Filtering Technology to Purify Groundwater
The University of Science and Technology team hopes the trial will prompt adoption of the system on the mainland, which is battling pollution after decades of rapid industrialisation.
Team leader Irene Lo Man-chi said the system worked by injecting reusable magnetic particles of a material known as zero-valent iron to remove metals that can cause disease.
She said prototypes showed a removal efficiency rate of about 97 per cent and that the system was faster and more sustainable than conventional methods.
A year from now, the researchers and the electroplating firm will examine the groundwater's contamination level for heavy metals like chromium.
The system currently costs an average of HK$10 per cubic metre but would cost less if it is expanded across the mainland.
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