Journal of Natural Environment

Journal of Natural Environment

Comparison of Zeolite (Clinoptilolite) and Activated Carbon, in Ammonia Removal during Transport of Live Rainbow Trout Fry (Oncorhynchus mykiss)

Document Type : Research Paper

Authors
Hadi Poorbagher 1
Soheil Eagderi 1
Mohammad Harsij 2
Amir Hossein Hamidian 3
1 Assistant professor, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
2 Assistant professor, Department of Natural Resources, University of Gonbad Kavoos, Gonbad Kavous, Iran
3 Assistant professor, Department of Environment, Faculty of Natural Resources, University of Tehran, Karaj, Iran
10.22059/jne.2013.36322
Abstract
Increasing the concentration of ammonia in water can cause fish death. This study was conducted to compare the performance of conditioned activated carbon and zeolite in ammonia (TAN = Total Ammonia Nitrogen) removal in a simulated transport of rainbow trout fry in 40-liter plastic bags. Hence, responses of zeolite and conditioned activated carbon in ammonia (TAN) removal at different concentrations of absorbents, i.e. 0, 5, 10 and 15 gl-1 and transportation times i.e. 12 and 24 hours and fry densities i.e. 20, 50 and 80 fry.bag-1 were compared, respectively. Both time and fish density had significant effect on TAN production (P<0.001). A significant difference was found between zeolite and conditioned activated carbon in TAN removal (P<0.001). The results obtained by zeolite were more satisfactory than activated carbon.
Keywords
Activated carbon
ammonia
Density
zeolite
Journal of Natural Environment
Volume 66, Issue 3 - Serial Number 3
Autumn 2014
Pages 255-260