Photo credit: Google
Combatting drought with a Low-Cost, biodegradable Superabsorbent Polymer made out of ORANGE PEELS
on Google Science Fair
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South Africa is presently experiencing one of the worst droughts in 45 years, with the lowest ever rainfall since 1904. In 2015, South Africa received only an average of 403 mm, which is merely 66% of the annual average rainfall.
This matter has to be urgently addressed, with food sources under severe strain and still household food security being a major concern. However, a clear solution would be Superabsorbent Polymers (SAPs). SAPs absorb and carry about 300 times its weight in liquid relative to their own mass. When a SAP is cross-linked with polymerization, the product is water retaining hydrogels that act as a reservoir of collected water in soil.
However, these SAPs are not biodegradable, costly and full of acrylic…
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