Ammonium Removal in Aquatic Conditions Using Different Levels of Calcium Bentonite

Authors : Dilek ŞAHİN, Eda SERTAŞI, Meryem ÖZ, Ünal ÖZ, Zafer KARSLI, Orhan ARAL

Pages : 61-69

View : 18 | Download : 7

Publication Date : 2018-12-15

Article Type : Research Paper

Abstract :Ammonia has a high toxic effect for all living forms. When exposed to in low quantities, it can be tolareted by the living forms. Compared with clay minerals, bentonite has a high usability due to its high adsorption capacity and low cost. I n this study, it was aimed to determine the effects of two different amount of bentonite on the ammonium adsorption in freshwater at 17 ±1°C . In this research two trial groups with 3 repetitions were created for two different bentonite rate. Experimental groups were prepared by adding 2 liter of water and NH 4 Cl to each bottle to give an NH 4 + amount of 10 mg/l. After that, two amounts of bentonite (7 g/l, 14 g/l) were added to the bottles. Water temperature, pH, dissolved oxygen and TAN (Total Ammonium Nitrogen) values were determined during the trial period. At the end of trial NH 3 values were calculated as 0.46 1±0.01 mg/l and 0.463±0.01 mg/l in different amount of bentonite groups ( 7 g/l, 14 g/l) , respectively. There were difference in TAN values between the experimental groups (p<0.05). As a result in this study, it has been determined that the amount of 14 g/l bentonite is the ideal amount for ammonium removal in aquaculture.
Keywords : Adsorption, Bentonite, Ammonium, Aquaculture