Nitrification in a Salt Wedge Estuaryby Walter T. Trial, Jr., Parametrix Inc, Bellevue, WA, USA,
Document Type: Proceeding Paper
Part of: Coastal Zone '87
Abstract: Autotrophic nitrifying bacterial activity and numbers were measured in a salt wedge estuary receiving ammonium-rich effluent from a municipal secondary wastewater treatment facility. Instream nitrification was observed to be primarily a benthic rather than planktonic process. The observed instream rate of nitrification below the effluent outfall was 725 mg m** minus **2 day** minus **1 at a temperature of 18. 6 degree C. Sediments located in an area of salt wedge influence exhibited a 7-fold reduction in potential nitrifying activity over upstream, freshwater sediments.
Subject Headings: Wedges | Bacteria | Salts | Estuaries | Effluents | Municipal wastewater | Sediment | Water treatment plants
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