Preliminary Studies on the Potential of Locally Available Shells in Sierra Leone for Phosphorous Removal

Four sets of locally available shells of Snail (Cymbium glance), Oyster (Crastrostrea denticulate), Crab (Callinectis pallidus) and Cockle (Senilia senilis) were studied for their potential to remove phosphorous from solution in a batch experiment. All four shells showed ability to release calcium in solution. The order of magnitude of calcium content contained in the four shells is in the order C. glance > S. senilis > C. denticulate >> C. pallidus.