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Efficient Removal of Heavy Metals
March 23 , 2021
1219 days
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- The Indian Institute of Technology (IIT) Mandi has developed a reusable fibrous membrane filter using a biopolymer-based material.
- That helps to separate out the heavy metals from water samples.
- These membranes contain adsorbents (materials that attract and hold the metals) that has large amount of a biopolymer, Chitosan.
- Chitosan derived from crab shells that are mixed with a synthetic polymer, Nylon.
- Normally, the fibres used to make regular cartridge filter-assemblies are processed by a method called melt blowing.
- But the IIT Mandi has used a process called “solution blowing”.
- Solution blowing produces fibres that are nanometres in diameter.
- That increases their surface area tremendously and results in better adsorption of heavy metals.
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