2020 | Australia | Emma Serisier

CRACK for the FUTURE: The use of eggshell waste as a bio-adsorbant of phosphates for water and soil quality

Water issue adressed: Too dirty

This study looked at potential bio-waste adsorbents to decrease the phosphate run-off into natural waterways from agricultural fertilisers and animal manures.
Identifying eggshell waste as an effective adsorbent for phosphate, a mathematical model and website were developed for farmers to calculate cost savings and application rates of eggshell on their soils. This free and accessible tool will be available to help farmers counteract their environmental footprint.

This is how I came up with the idea for this project:

Growing up on a property exposed me to the unique balance within ecosystems and the absolute power of nature and its forces. I observed eutrophication and water pollution first-hand which lead me to search for simple solutions to this problem.


Ania Andersch

Programme manager ania.andersch@siwi.org +46 8 121 360 59