An investigation of a top-loading, vertical-flow, submerged-bed constructed wetland system subject to a New York State discharge permit, of mineral nitrogen transformations occurring within the wetland units, and of the effects of local environment on system performance indicated 100%
removal of biochemical oxygen demand (BOD) and mean 99.0 ± 1.1% removal of ammonium (NH4+). The wetland system, located in Highland, New York, treats primary domestic wastewater effluent and consists of four beds presently operated in series. Influent and effluent
samples from each of the four treatment units were analyzed for BOD, ammonium-nitrogen (NH4+-N), nitrate-nitrogen (NO3−-N), and nitrite-nitrogen (NO2−-N). During the study, mean influent wastewater concentrations
were 170.8, 3.1, and 0.015 mg/L for NH4+-N, NO3−-N, and NO2−-N, respectively. Mean effluent concentrations of NH4+-N, NO3−-N, and NO2−-N
were 1.9, 4.2, and 0.002 mg/L, respectively.
Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year. Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.