A Review of Phosphorus Removal Structures: How to Assess and Compare Their Performance
AbstractControlling dissolved phosphorus (P) losses to surface waters is challenging as most conservation practices are only effective at preventing particulate P losses. As a result, P removal structures were developed to filter dissolved P from drainage water before reaching a water body. While many P removal structures with different P sorption materials (PSMs) have been constructed over the past two decades, there remains a need to evaluate their performances and compare on a normalized basis. The purpose of this review was to compile performance data of pilot and field-scale P removal structures and present techniques for normalization and comparison. Over 40 studies were normalized by expressing cumulative P removal as a function of cumulative P loading to the contained PSM. Results were further analyzed as a function of retention time (RT), inflow P concentration, and type of PSM. Structures treating wastewater were generally more efficient than non-point drainage water due to higher RT and inflow P concentrations. For Ca-rich PSMs, including slag, increased RT allowed for greater P removal. Among structures with low RT and inflow P concentrations common to non-point drainage, Fe-based materials had an overall higher cumulative removal efficiency compared to non-slag and slag materials. View Full-Text
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Penn, C.; Chagas, I.; Klimeski, A.; Lyngsie, G. A Review of Phosphorus Removal Structures: How to Assess and Compare Their Performance. Water 2017, 9, 583.
Penn C, Chagas I, Klimeski A, Lyngsie G. A Review of Phosphorus Removal Structures: How to Assess and Compare Their Performance. Water. 2017; 9(8):583.Chicago/Turabian Style
Penn, Chad; Chagas, Isis; Klimeski, Aleksandar; Lyngsie, Gry. 2017. "A Review of Phosphorus Removal Structures: How to Assess and Compare Their Performance." Water 9, no. 8: 583.
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