Novel ammonium/ammonia removal techniques

ENVR 171

Greg L. Pepping, gregpepping@gmail.com1, Marc A. Anderson1, and Terence P. Barry, tpbarry@wisc.edu2. (1) Environmental Chemistry & Technology Program, University of Wisconsin-Madison, 660 N. Park Street, Madison, WI 53706, (2) School of Pharmacy, University of Wisconsin-Madison, 5109 Rennebohm Hall, 777 Highland Ave., Madison, WI 53705
In water at neutral pH, ammonia-nitrogen was seen to be completely removed in ten minutes. Studies included an analysis of the ionic species required in solution to initiate ammonia removal reactions, as well as other parameters to optimize ammonia degradation. A full nitrogen mass balance was developed by measuring aqueous ammonium, nitrate, nitrite, and chloramines. Results show an improvement in ammonia removal rates as compared to the commercial processes currently in use. Possible applications include treatment of: water in recirculating aquaculture systems, effluents from wastewater treatment plants, and animal waste runoff from livestock feedlots.