Abstract
Ammonia (NH3) volatilization is an undesirable mechanism for the removal of nitrogen (N) from wastewater treatment wetlands. To minimize the potential for NH3 volatilization, it is important to determine how wetland design affects NH3 volatilization. The objective of this research was to determine how the presence of a pond section affects NH3 volatilization from constructed wetlands treating wastewater from a confined swine operation. Wastewater was added at different N loads to six constructed wetlands of the marsh-pond-marsh design that were located in Greensboro, North Carolina, USA. A large enclosure was used to measure NH3 volatilization from the marsh and pond sections of each wetland in July and August of 2001. Ammonia volatilized from marsh and pond sections at rates ranging from 5 to 102 mg NH3-N m(-2) h(-1). Pond sections exhibited a significantly greater increase in the rate of NH3 volatilization (p < 0.0001) than did either marsh section as N load increased. At N loads greater than 15 kg ha(-1) d(-1), NH3 volatilization accounted for 23 to 36% of the N load. Furthermore, NH3 volatilization was the dominant (54-79%) N removal mechanism at N loads greater than 15 kg ha(-1) d(-1). Without the pond sections, NH3 volati...Continue Reading
Citations
Apr 15, 2010·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Kyoung S RoGudigopuram B Reddy
May 4, 2010·Bioresource Technology·Caolan Harrington, Miklas Scholz
Jan 14, 2009·Water Research·Rachel C WagnerBruce E Logan
Aug 8, 2015·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Catalina Plaza de Los Reyes, Gladys Vidal
Sep 2, 2014·Environmental Technology·Gang-Jin LiuYi Liu
Nov 1, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Catalina Plaza De Los ReyesGladys Vidal
May 19, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Gudigopuram B ReddyAriel Szogi
Oct 25, 2008·Journal of Environmental Quality·A C VanderZaagG W Stratton
Jun 7, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Caolan HarringtonPeadar G Lawlor
Mar 11, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Johnsely S Cyrus, G B Reddy
Dec 8, 2015·Journal of Environmental Quality·Jeffrey D WoodHeather M Bromley
Apr 20, 2010·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Dean A ForbesJohnsely S Cyrus
Sep 25, 2017·Scientific Reports·Gema L BataneroIsabel Reche
Apr 20, 2018·Environmental Science & Technology·N PerujoX Sanchez-Vila