Operation of the vertical subsurface flow and partly submersed stormwater wetland with an intermittent recycle

Chen, Yaoping; Guerra, Heidi B.; Min, Kyung Sok; Kim, Young‐Chul

doi:10.1080/19443994.2012.664403

Cited by 11 publications

(7 citation statements)

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“…16,21 In addition, it is known that types of water as inow affect the release of COD. According to the study of Chen et al, 22 the COD released from lab-scale woodchip VSF wetlands for urban stormwater treatment was smaller than those of our study. Cameron and Schipper 16 studied the use of woodchip originated organics as a carbon source for denitrication by using articial wastewater containing only nitrate.…”

Section: Release Of Organic Mattercontrasting

confidence: 76%

Performance of a vertical subsurface flow (VSF) wetland treatment system using woodchips to treat livestock stormwater

Niu

Guerra

Chen

et al. 2013

Environ. Sci.: Processes Impacts

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This study was conducted to develop a vertical subsurface flow (VSF) wetland remediation system packed with woodchips to control stormwater pollution arising from livestock agriculture. Three lab-scale VSF wetlands were operated with recirculation during the interval (Δ) between storms as 2, 4 and 8 days, respectively. The fed water was 100% recirculated one time per 24 h; the recirculation frequency was 1, 3 and 7 times at Δ of 2, 4 and 8 days, respectively. The constructed wetland systems proved to be effective in reducing total suspended solid (TSS), but also had potential for increasing TSS in the effluent due to the properties of the woodchips. The release of organic matter, especially in the dissolved form, occurred during the initial 60 days. The removal efficiencies of total nitrogen (TN) were 26.2%, 34.1% and 50.0% at Δ of 2, 4 and 8 days, respectively. Nitrification was promoted by the abundant oxygen supplied when the water in wetland was recirculated and fed into the wetland. Denitrification was stable and effective due to the availability of carbon sources. The influent total phosphorus (TP) was reduced from an average of 2.05 mg L(-1) to 1.79 mg L(-1), 1.36 mg L(-1) and 0.86 mg L(-1) at Δ as 2, 4 and 8 days, respectively. The result shows that woodchips can be used as substrate material for VSF wetland treatment systems to control nutrient influx from livestock stormwater.

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Section: Release Of Organic Mattercontrasting

confidence: 76%

Performance of a vertical subsurface flow (VSF) wetland treatment system using woodchips to treat livestock stormwater

Niu

Guerra

Chen

et al. 2013

Environ. Sci.: Processes Impacts

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“…Among the artificial materials that have been used as a medium in CWs for N removal, ceramsite [58], activated carbon [59], synthetic fiber [60,61], cement clinker [62], recycled concrete [63], and modified clays [64] can be mentioned.…”

Section: Substrate Materialsmentioning

confidence: 99%

Diffuse Water Pollution from Agriculture: A Review of Nature-Based Solutions for Nitrogen Removal and Recovery

Mancuso

Bencresciuto

Lavrnić

et al. 2021

Water

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The implementation of nature-based solutions (NBSs) can be a suitable and sustainable approach to coping with environmental issues related to diffuse water pollution from agriculture. NBSs exploit natural mitigation processes that can promote the removal of different contaminants from agricultural wastewater, and they can also enable the recovery of otherwise lost resources (i.e., nutrients). Among these, nitrogen impacts different ecosystems, resulting in serious environmental and human health issues. Recent research activities have investigated the capability of NBS to remove nitrogen from polluted water. However, the regulating mechanisms for nitrogen removal can be complex, since a wide range of decontamination pathways, such as plant uptake, microbial degradation, substrate adsorption and filtration, precipitation, sedimentation, and volatilization, can be involved. Investigating these processes is beneficial for the enhancement of the performance of NBSs. The present study provides a comprehensive review of factors that can influence nitrogen removal in different types of NBSs, and the possible strategies for nitrogen recovery that have been reported in the literature.

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“…Weber et al 26 reported the same results in upgrading CWs with steel slag filters. The adsorption and/or precipitation process of phosphorus by substrate of gravel and slag particles in CWs was a finite process and once the adsorption sites in such CWs became saturated, the phosphorus removal efficiency decreased 20,21 .…”

Section: Removal Efficiency Of Tnmentioning

confidence: 99%

“…Moreover, the selection of component of two-stage CWs is very important to its performance 19 . The single-stage vertical-subsurface flow constructed wetlands (VFCWs) are attracting more and more attention due to their excellent oxygen transfer capacity and steadily high nutrient removal efficiency under various months 20,21 . In fact, two kinds of the most frequent VFCWs, i.e., vertical up-flow (VUF) and vertical down-flow (VDF) CWs, are able to provide both aerobic and anaerobic conditions at the same time.…”

Section: Introductionmentioning

confidence: 99%

Performance of Treating Synthetic High-Strength Wastewater by Hybrid Vertical-Subsurface Flow Constructed Wetlands in Response to Various Two-Stage Combinations of Vertical Up-Flow and Down-Flow

Zhang¹,

Cheng²,

Zhao³

et al. 2013

Asian J. Chem.

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The performance and temporal variation of hybrid vertical-subsurface flow constructed wetlands (VFCWs) in response to two-stage combinations of vertical up-flow (VUF) and vertical down-flow (VDF) were tested in order to treat non-point sources of pollution wastewater. The effect and seasonal variation of four kinds of two-stage combinations VFCWs (VUF-VUF, VDF-VDF, VUF-VDF and VDF-VUF) were analyzed by synthetic high organic/N loading wastewater. Furthermore, the impact of loading variation treatments, combination patterns, season variation and their interaction on treatment performance were calculated. Four kinds of two-stage combinations VFCWs all showed high nutrient removal efficiencies under high organic/N loading treatments and the optimum two-stage combination was VDF-VUF VFCWs. During the experimental period, the relatively higher nutrient removal efficiency was achieved in late summer (July and August) and early autumn (September) and the highest value was obtained in August. Chemical oxygen demand and total nitrogen removal efficiencies under high organic/N loading treatments were only significantly affected (p < 0.05) by season, system variation and the combined effect of season and system variation, while the total phosphorus removal efficiencies were not significantly affected (p > 0.05) by any factors.

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Operation of the vertical subsurface flow and partly submersed stormwater wetland with an intermittent recycle

Cited by 11 publications

References 0 publications

Performance of a vertical subsurface flow (VSF) wetland treatment system using woodchips to treat livestock stormwater

Performance of a vertical subsurface flow (VSF) wetland treatment system using woodchips to treat livestock stormwater

Diffuse Water Pollution from Agriculture: A Review of Nature-Based Solutions for Nitrogen Removal and Recovery

Performance of Treating Synthetic High-Strength Wastewater by Hybrid Vertical-Subsurface Flow Constructed Wetlands in Response to Various Two-Stage Combinations of Vertical Up-Flow and Down-Flow

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