Optimization of Temperature and Heating Duration of Giant African Snail (Achatina Fulica) Shells as Natural Adsorbents to Improve the Water Quality of The Kahayan River

This research aims to test the potential of heated snail shells to be used as a natural adsorbent in overcoming water quality problems in the Kahayan River. In this research, snail shells will go through several heating treatments to find the most effective temperature and heating duration for improving water quality. Heating snail shells is expected to increase their ability to adsorb ammonia, reduce turbidity, and increase water pH. The results of this research were that the pH increased significantly after mixing Kahayan River water with snail shells. Heating the snail shell did not have a significant effect on the increase in pH. An increase in temperature can increase the loss of ammonia in the form of gas or NH3 so that its solubility in water will decrease. In the TDS concentration, there was an increase with the heating of the snail shell, but there was a decrease in the increase in TDS due to changes in the concentration of the substances contained therein.