Tertiary Treatment of Wastewater Using Flow-Through Wetland Systems, Status Report 3

摘要

The monitoring operations and a water budget analysis of a flow-through wetland system for wastewater treatment near Jasper, Florida, named Basin Swamp are evaluated. The purpose of the monitoring program is to identify the effects of wastewater on the swamp as well as the effects of the swamp on wastewater effluent. In addition, points where the magnitude of these effects diminish to background levels are being identified. An effort is being made to determine which effects are acceptable to the wetland environment and public health. Monitoring of surface and subsurface waters included studying water chemistry, nutrients, heavy metals, vegetation, and coliform bacteria. Preliminary results show: (1) a reduction of total nitrogen to near background levels; (2) a reduction of phosphorus levels; (3) that the application of effluent to cypress strand may be harmful to trees; (4) that the total and fecal coliform levels appear to be readily reduced; (5) that nutrients and coliform bacteria penetrate shallow groundwater levels; and (6) that no significant amounts of heavy metals are being applied to Basin Swamp. To supplement various monitoring programs, a water budget analysis was refined and updated to include data collected from weekly monitoring operations. Results significantly improved the accuracy of the water budget analysis.