Monitoring the startup of a wet detention pond equipped with sand filters and sorption filters

Vollertsen, Jes; Lange, Kenn H.; Pedersen, J.P.; Hallager, Per; Bruus, Allan; Laustsen, Anne; Bundesen, Vibeke W; Brix, Hans; Nielsen, Asbjørn Haaning; Nielsen, N. H.; Wium-Andersen, Tove; Hvitved-Jacobsen, Thorkild

doi:10.2166/wst.2009.460

Cited by 11 publications

(6 citation statements)

References 15 publications

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“…In general, TSS, total nitrogen (Tot-N) and total phosphorous (Tot-P) were removed efficiently in the ponds and the sand filters at the effluent. A detailed description of the monitored physical and chemical conditions in the ponds as well as overall treatment performance for TSS and nutrients have been presented by Vollertsen et al [16,17] Concerning heavy metals, the Odense pond received significantly higher concentrations of Pb, Zn, Ni and Cu compared to the other two ponds (Table 3). In all ponds, the concentrations of Pb, Zn, Cd, Cr and Cu decreased significantly by passing through the systems, and the concentrations in the pond water were considerably lower than in the inlets indicating significant removal by sedimentation.…”

Section: Watermentioning

confidence: 99%

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Improved urban stormwater treatment and pollutant removal pathways in amended wet detention ponds

Istenič

Arias

Vollertsen

et al. 2012

Journal of Environmental Science and Health, Part A

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Dissolved and colloidal bound pollutants are generally poorly removed from stormwater in wet detention ponds. These fractions are, however, the most bio-available, and therefore three wet detention ponds were amended with planted sand filters, sorption filters and addition of precipitation chemicals to enhance the removal of dissolved pollutants and pollutants associated with fine particles and colloids. The three systems treated runoff from industrial, residential and combined (residential and highway) catchments and had permanent volumes of 1,990, 6,900 and 2,680 m(3), respectively. The treatment performance of the ponds for elimination of total suspended solids (TSS), total nitrogen (Tot-N), total phosphorous (Tot-P), PO(4)-P, Pb, Zn, Cd, Ni, Cr, Cu, Hg were within the range typically reported for wet detention ponds, but the concentrations of most of the pollutants were efficiently reduced by the planted sand filters at the outlets. The sorption filters contributed to further decrease the concentration of PO(4)-P from 0.04 ± 0.05 to 0.01 ± 0.01 mg L(-1) and were also efficient in removing heavy metals. Dosing of iron sulphate to enrich the bottom sediment with iron and dosing of aluminium salts to the inlet water resulted in less growth of phytoplankton, but treatment performance was not significantly affected. Heavy metals (Pb, Zn, Cd, Ni, Cr and Cu) accumulated in the sediment of the ponds. The concentrations of Zn, Ni, Cu and Pb in the roots of the wetland plants were generally correlated to the concentrations in the sediments. Among 13 plant species investigated, Rumex hydrolapathum accumulated the highest concentrations of heavy metals in the roots (Concentration Factor (CF) of 4.5 and 5.9 for Zn and Ni, respectively) and Iris pseudacorus the lowest (CF < 1). The translocation of heavy metals from roots to the aboveground tissues of plants was low. Therefore the potential transfer of heavy metals from the metal-enriched sediment to the surrounding ecosystem via plant uptake and translocation is negligible.

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Section: Watermentioning

confidence: 99%

“…[1,17,18] The main removal of these pollutants occurred in the open water part of the systems indicating that they were predominantly removed by sedimentation in the ponds. Pollutants that are inherently associated with the particulates sink to the bottom in the slowly flowing water of the pond and accumulate in the sediment.…”

Section: Water Quality Improvementmentioning

confidence: 99%

Improved urban stormwater treatment and pollutant removal pathways in amended wet detention ponds

Istenič

Arias

Vollertsen

et al. 2012

Journal of Environmental Science and Health, Part A

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“…A common technique used to determine the equilibrium adsorbent loading is the bottle-point method, or batch method (Cooney 1999;Worch 2012). This method is used in many sorption equilibrium studies (Genç-Fuhrman et al 2007;Arias and Sen 2009;Vollertsen, Lange, Pedersen, Hallager, Bruus, et al 2009;Vijayakumar et al 2012; Wium- Andersen et al 2012;Reddy et al 2014) and is the recommended approach by Ali & Gupta (2006) for the characterization of low-cost sorbents. To conduct batch adsorption equilibrium experiments, a volume of water with a known concentration of solute(s), and a known mass of adsorbent, is added to a batch reactor (i.e.…”

Section: Figure 2 -Example Of An Adsorption Isothermmentioning

confidence: 99%

Removal of Arsenic, Cadmium and Lead from Synthetic Stormwater by Two Low-Cost Adsorbents: A Kinetic and Equilibrium Study

David¹

2023

Preprint

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The adsorption isotherms and kinetics of two low cost adsorbents, Ladybug Sand and Greensand, were determined from multi-solute batch experiments using prepared synthetic stormwater containing arsenic, cadmium and lead. The adsorption equilibrium data were fit to the Langmuir, Freundlich and Henry isotherms using both nonlinear and linear regression techniques. Kinetic data were obtained at two different stormwater concentrations. The kinetic curves were fit to the pseudo-first-order, pseudo-second-order and homogenous surface diffusion model (HSDM). A solution to the HSDM was achieved using the user-oriented numeric solution proposed by Zhang et al. (2009). From the fitted kinetic models the reaction constants, k1 and k2, as well as the surface diffusion coefficient (Ds) were determined. The maximum service lives of adsorbent columns comprised of Ladybug Sand or Greensand were calculated using the equilibrium column model (ECM) to evaluate the feasibility of the adsorbents for use in advanced stormwater treatment.

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“…filters at the pond outlet, such as the one presented in Vollertsen et al, 2009), may be included in potential scenarios for pollution control. Also, further development of the catchment quality sub-model to include phase distribution might improve the assessment of the different strategies with regards to the dissolved MP phase.…”

Section: Compliance With Emission Limit Valuesmentioning

confidence: 99%

Evaluation of stormwater micropollutant source control and end-of-pipe control strategies using an uncertainty-calibrated integrated dynamic simulation model

Vezzaro

Sharma

Ledin

et al. 2015

Journal of Environmental Management

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Monitoring the startup of a wet detention pond equipped with sand filters and sorption filters

Cited by 11 publications

References 15 publications

Improved urban stormwater treatment and pollutant removal pathways in amended wet detention ponds

Improved urban stormwater treatment and pollutant removal pathways in amended wet detention ponds

Removal of Arsenic, Cadmium and Lead from Synthetic Stormwater by Two Low-Cost Adsorbents: A Kinetic and Equilibrium Study

Evaluation of stormwater micropollutant source control and end-of-pipe control strategies using an uncertainty-calibrated integrated dynamic simulation model

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