Journal
GREEN CHEMISTRY
Volume 16, Issue 10, Pages 4552-4558Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4gc01070a
Keywords
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Funding
- DST, New Delhi, Government of India [SB/EMEQ-052/2013]
- DST, Government of India [IFA12-CH-84]
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The development of a low-cost, high-performance, biobased membrane technology has been attempted to treat environmentally sensitive wastewater streams. Novel foam membranes (FMs) were derived from agarose (Agr) and gelatin (Gel) in combination with a non-toxic fruit extract and natural crosslinker, genipin (G). FMs were successfully tested for their oil water separation efficiencies. FMs attained unique capillary microstructures (10-45 mu m) as a result of the controlled lyophilization process, which allows selective permeation of water. Stable microporous membranes with nominal pore sizes in between the microfiltration and ultrafiltration range generated as high as >500 L m(-2) h(-1) continuous flux with similar to 98% pure product water. One of the advantages of these FMs is that after oil water separation, they can undergo an easy membrane cleaning process, thereby retaining surface activity for long term performance.
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