Complex Interactions Among Nutrients, Chlorophyll-A, And Microcystins In Three Stormwater Wet Detention Basins With Floating Treatment Wetlands

Keywords

Best management practice; Floating treatment wetland; Nutrient removal; Stormwater management; Wet detention pond

Abstract

Stormwater wet detention ponds hold a permanent pool of water and offer many beneficial uses including flood mitigation, pollution prevention, downstream erosion control, increased aesthetics, and recreational uses. Although the removal of nutrients is generally low for stormwater wet detention ponds in urban areas, floating treatment wetlands (FTWs) can be installed to offer an innovative solution toward naturally removing excess nutrients and aiding in stormwater management. To improve the stormwater reuse potential, this study assessed nutrient, microcystin, and chlorophyll-a interactions in three Florida stormwater wet detention ponds with recently implemented FTWs. Both episodic (storm events) and routine (non-storm events) sampling campaigns were carried out at the three ponds located in Ruskin, Gainesville, and Orlando. The results showed a salient negative correlation between total phosphorus and microcystin concentrations for both storm and non-storm events across all three ponds. The dominant nutrient species in correlation seemed to be total phosphorus, which correlated positively with chlorophyll-a concentrations at all ponds and sampling conditions, with the exception of Orlando non-storm events. These results showed a correlation conditional to the candidate pond and sampling conditions for microcystin and chlorophyll-a concentrations.

Publication Date

2-1-2016

Publication Title

Chemosphere

Volume

144

Number of Pages

408-419

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.chemosphere.2015.08.023

Socpus ID

84953215894 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84953215894

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