An Experimental Study on Ammonia Removal Characteristics of Zeolite-amended Porous Concrete

International Conference on Sustainable Civil Engineering

June 20-21, 2016 Cape Town, South Africa

Pritom Paul

Bangladesh University of Engineering and Technology, Bangladesh

Posters & Accepted Abstracts: J Civil Environ Eng

Abstract :

Water treatment plants often suffer a great deal due to high concentration of ammonia in raw water. Previous studies on water purification characteristics of Porous Concrete lack information on its ability in reducing ammonia concentration in water. Adsorption property of Porous Concrete under different flow rate of water was focused in this study to evaluate its ammonia reduction capacity in synthetic wastewater. Improvement of adsorption property of Porous Concrete was tried to achieve by using different percentages of zeolite partly instead of cement. Under lower loading flow rate, Porous Concrete containing 25% zeolite reduced initial ammonia concentration by 97% whereas Porous Concrete without zeolite reduced ammonia concentration by 41%. For Porous Concrete containing 5% and 15% zeolite, initial ammonia concentration was reduced to 72% and 82% respectively. At the end of 24 hour of experimental run, 31%, 37%, 51% and 60% reduction of initial ammonia concentration was achieved for Porous Concrete with 0%, 5%, 15% and 25% zeolite respectively. Ammonia reduction capacity reduced to 89% and 39% for Porous Concrete containing 25% and 0% zeolite under higher loading flow rate of water. Initial ammonia concentration reduction under higher loading flow rate were 37%, 33%, 38% and 48% for Porous Concrete containing 0%, 5%, 15% and 25% zeolite respectively. A minor variation of pH was observed during both experimental runs. It is evident from the result that adsorption property of Porous Concrete is effective enough in reducing ammonia concentration in water.

Biography :

Email: pritom@outlook.com