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Tarrant Regional Water District's Field-Scale Wetland Phase 1 Operations – Lessons Learned

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More than three years of operation of a 243-acre field-scale wetland have been conducted to verify treatment performance capabilities documented during the eight-year, 2.5-acre pilot-scale wetland study. The field-scale system functioned as designed with the majority of the suspended solids removed within the sedimentation basin with some associated removal of nutrients. Overall, the field-scale system provided effective removal of suspended solids (96%) comparable to the performance documented at the pilot-scale system (95%). The field-scale system also provided effective removal of both TN (67%) and TP (44%) although the removals based on percent mass removed were not at the performance levels exhibited in the pilot-scale system (82% for TN and 66% for TP). Differences related to design and operation of the field-scale system versus the pilot-scale system include substantially higher hydraulic loading rates and resultant higher mass loading rates, reduced density of vegetation and higher water depths.
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Document Type: Research Article

Publication date: 2008-01-01

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