Phosphate run-off into natural waterways from agricultural fertilisers and animal manures can cause eutrophication and come at great economic and environmental cost.
The application of eggshell to soils results in an offsetting of these issues through decreasing the phosphate concentration in aqueous solutions, having a direct application to run-off areas as adsorbents and soil conditioners.
Results from this study concluded that eggshell decreased orthophosphate levels by around 62% indicating effective adsorption. These results have been applied into a mathematical model which has been developed into a website to calculate cost savings and application rates of eggshell.
History has shown that global change is achieved through action on a local scale. This website provides farmers with a free, accessible tool to help counteract their environmental footprint and create global change.