Ammonia nitrogen compounds in the wastewaters and effluents have harmful effects on water resources. Ion exchange with zeolites is a separation process for ammonia removal from effluents. The objective of this research was to study the efficiency of an ammonia removal and the factor affecting to this process. The Clinoptilolite was obtained from Semnan mines at the north part of Iran. The samples were grounded and sieved based on the U.S. standard mesh number 20, 30, 40 and conditioned by ammonia sulfate and sodium chloride solutions. The characteristics of samples for ammonia removal and the selectivity sequence for adsorbing interfering cations were then determined. Results shown that the average ion exchange capacity of zeolite in batch and continuous systems were 6.65-16 and 16.31-19.5 mg NH4+ /g zeolite weight, respectively. In study on the zeolite for selective cations showed the ranking of K+, NH4+, Na+, Ca2+ and Mg2+ respectively. Results indicated that high level of regeneration (95-98%) might be achieved with NaCl solution. Based on the results, Clinoptilolite may be effective applied in wastewater treatment, both from technical and economical aspects.
Ames, L. L., (1967). zeolite removal of ammonium ions from agriculture wastewater. Proc. 13th. Pacific North West Indus. Waste Conf., Washington University. , 52-135 (84 Pages)
Andrew D. Eaton (1992). Standard Methods for the Examination of Water and Wastewater. 18th. Ed., American Public Health Association, NW. DC. . Full Text
AWWA, (1990). Water quality and treatment. Mc Graw Hill Co., New York.
Clifford D. A., (1990). Ion exchange and inorganic adsorption, in water quality and treatment. McGraw-Hill, AWWA, Washington D.C.
Culp, H. L., G. M. Wesner, and G. L. Culp, (1978). Handbook of advanced wastewater treatment. 2nd. Ed., Van Nostrand Reinhold Co., New York.
Ershov A. V., (1984). Use of transcarpathin clinoptilotic rock to remove ammonium nitrogen from municipal sewage. Khim Technol, Vody. 6, 71-75 (5 Pages)
Gaspard, M., A. Neveu and G. Martin, (1983). Clinoptilolite in drinking water treatment for NH4+ removal. Water Res. 17 (3), 279-288 (10 Pages), DOI: 10.1016/0043-1354(83)90181-1. Abstract | Full Text (696 K)
Haralambous A., E. Maliou and M., Malamis, (1992). The use of zeolite for ammonium uptake. Water Sci. Technol. 25 (1), 139-145 (7 Pages)
Kazemian H., (1993). Chemical analysis, Characterization, and determination of Ion-Exchange properties of an Iranian Natural zeolite. M. S. thesis, Department of Chemistry, School of Sciences, University of Isfahan, Iran.
Koon J. H., and W. J. Kaufman, (1975). Ammonium removal from municipal wastewaters by ion exchange. J. WPCF. 47 (3), 448-465 (18 Pages)
Liberti, L.; Boari, G.; Petruzzelliand, G.; Passino, R., (1981). Nutrient removal and recovery from wastewater by ion exchange. J. Water Res. 15 (3), 337-342 (6 Pages), DOI: 10.1016/0043-1354(81)90038-5. Abstract | Full Text (327 K)
Mercer, B. W., L. L. Ames, J. C. Touhill, W. J. Van Slyke and R. B. Dean, (1970). Ammonium removal from secondary effluents by selective ion-exchange. J. WPCF. 42 (2), 95-107 (13 Pages)
Metcalf and Eddy, (2003). Wastewater Engineering: Treatment and Reuse. 4th. Ed., Mc Graw Hill Co., New York. . Full Text
Parker, Denny S.; et al, (1975). Process design manual for nitrogen control. EPA,U.S.EPA, Technology Transfer. Abstract | Full Text (1196 K)
Schoeman J. J., (1986). Evaluation of a South African Clinoptilolite for ammonium-nitrogen removal from an underground mine water. Water SA. 12 (2), 73-82 (10 Pages)
Singh G. and B. Prasad, (1997). Removal of ammonium from coke plant wastewater by using synthetic zeolite. Water Environ. Res., 69 (2), 157-161 (5 Pages), DOI: 10.2175/106143097X125308. Abstract
Weber W. J., (1972). Physicochemical processes for water quality control. Wiley Interscience. 9, 261-304 (44 Pages)Abstract