Components of floating emergent macrophyte treatment wetlands influencing removal of stormwater pollutants

Effect of Stubble Heights and Treatment Duration Time on the Performance of Water Dropwort Floating Treatment Wetlands (FTWS)

“…Thus, temperature seemed to be the determination factor rather than season. Tanner and Headley [18] conducted a series of patch floating treatment wetlands in an innovative approach to enhance the removal of fine particulates, copper and zinc in urban storm water. It was found that planted FTWs with different species removed the dissolved Cu in the order of 5.6÷7.7 mg/m 2 ·day and at total Cu mass loadings of 11.1 mg/m 2 ·d, and dissolved Zn in the order of 25÷104 mg/m 2 ·day at total Zn mass loadings of 350 mg/m 2 ·d, and decreased approximately 34÷42% of the turbidity within three days.…”

“…In the past 30 years, the FTWs have been tested and applied in laboratories and at pilot scales [3][4][5][6][7][8][9]. Characterized by no extra land demand and adaption to a wide range of water depth, FTWs have been widely used in the treatment of domestic wastewater [10], river water [7,11,12], lake water [5,13,14], agricultural runoff [4,15], swine sewage [16], rainfall [17], storm water [18] and urban runoff [19].…”

Effects of flow speed and circulation interval on water quality and zooplankton in a pond–ditch circulation system

“…Firstly, zero water exchange may result in less nitrogen and phosphorus released from the sediment (Carrick et al 1993;Qin et al 2004). Secondly, macrophytes in the PDCS were more efficient in remediating water by immobilizing the sediment, promoting deposition, and restraining sediment resuspension in zero water exchange (Dai et al 2012;Tanner and Headley 2011). Moreover, the biological capacity and activity may be enhanced in zero water exchange, which can increase TN and TP removal efficiencies (Lin et al 2013).…”

Eutrophication: Status, Trends and Restoration Strategies for Palic Lake

“…Their buoyancy enables them to tolerate wide fluctuations in water depth. This provides potential to enhance treatment performance by increasing the water depth retained during flow events to extend the detention time of storm waters in the wetland [38].…”