Modeling the relationship of aeration, oxygen transfer and treatment performance in aerated horizontal flow treatment wetlands

Boog, Johannes; Kalbacher, Thomas; Nivala, Jaime; Forquet, Nicolas; Afferden, Manfred van; Müller, Roland

doi:10.1016/j.watres.2019.03.062

Cited by 34 publications

(12 citation statements)

References 31 publications

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“…The application of process-based models to aerated wetland systems aims to provide new insights for improving design and operation. A reactive transport model for HF aerated wetlands has been recently developed and validated on an outdoor pilot-scale system, where hydraulic behaviour and removal of COD, NH 4 -N, and NO x -N were reliably simulated [85]. The model was further developed to predict treatment performance and dynamic response of DO, COD, NH 4 -N, and NOx-N concentrations in pore water and final effluent before, during and after a period of aeration interruption [86].…”

Section: Research Trendsmentioning

confidence: 99%

Recent Advances in the Application, Design, and Operations & Maintenance of Aerated Treatment Wetlands

Nivala

Murphy²,

Freeman³

2020

Water

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This paper outlines recent advances in the design, application, and operations and maintenance (O&M) of aerated treatment wetland systems as well as current research trends. We provide the first-ever comprehensive estimate of the number and geographical distribution of aerated treatment wetlands worldwide and review new developments in aerated wetland design and application. This paper also presents and discusses first-hand experiences and challenges with the O&M of full-scale aerated treatment wetland systems, which is an important aspect that is currently not well reported in the literature. Knowledge gaps and suggestions for future research on aerated treatment wetlands are provided.

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Section: Research Trendsmentioning

confidence: 99%

Recent Advances in the Application, Design, and Operations & Maintenance of Aerated Treatment Wetlands

Nivala

Murphy²,

Freeman³

2020

Water

Self Cite

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“…To simulate the transfer of oxygen and treatment performance of aerated HFCW for treating domestic sewage, a reactive transport model (RTM) based on dual-permeability flow and biokinetic formulations of the Constructed Wetland Model No. 1 (CWM1) was developed and calibrated and validated using real wastewater pilot-scale experiments (Boog et al, 2019). This model integrates quantitative relationships of airflow rate (AFR), water temperature, field oxygen transfer, and treatment performance to provide better insights into the aeration mechanism in treating domestic sewage by CW.…”

Section: Wetland Modelingmentioning

confidence: 99%

“…Similarly, Saeed and Khan (2019) also studied VFCWs to treat industrial wastewater achieving removal efficiencies higher than 90% of the pollutants aforementioned. In addition to VFCW, horizontal flow constructed wetlands (HFCWs) are also used for wastewater treatment (Boog et al, 2019). Moreover, VF, HF, and hybrid wetlands have also been used to remove enteric pathogens for safe reuse in agriculture (Shingare, Thawale, Raghunathan, Mishra, & Kumar, 2019).…”

Section: Introduction—wetlands For Environmental Protectionmentioning

confidence: 99%

Wetlands for environmental protection

Martinez‐Guerra

Ghimire

Nandimandalam

et al. 2020

Water Environment Research

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This article presents an update on the research and practical demonstration of wetland-based treatment technologies for protecting water resources and environment covering papers published in 2019. Wetland applications in wastewater treatment, stormwater management, and removal of nutrients, metals, and emerging pollutants including pathogens are highlighted. A summary of studies focusing on the effects of vegetation, wetland design and operation strategies, and process configurations and modeling, for efficient treatment of various municipal and industrial wastewaters, is included. In addition, hybrid and innovative processes with wetlands as a platform treatment technology are presented.

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“…Artificial aeration is considered to be the most effective way to improve the redox conditions in CWs. The effects of the aeration site [12,13], aeration intensity [14,15], aeration pattern [16,17] and plant species [18,19] on the treatment efficiencies of HSSF CWs were reported individually. In terms of aeration position, there are generally three preferable sites, i.e., at the front, middle and rear section of HSSF CWs.…”

Section: Introductionmentioning

confidence: 99%

The Interaction Effects of Aeration and Plant on the Purification Performance of Horizontal Subsurface Flow Constructed Wetland

Chen

Zhong

Chen³

et al. 2022

IJERPH

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Aeration and plants exhibit influence on the water purification performance in constructed wetlands (CWs). However, the interaction between aeration and plants on enhancing performance of domestic sewage treatment is unclear. Our study aims to optimize the combination of aeration position and plant species, promoting the extensive and effective application of CWs. Herein, six horizontal subsurface flow (HSSF) CWs small scale plots were established and divided into two groups according to the plant (i.e., Canna indica and Iris sibirica). To adjust the distribution of dissolved oxygen (DO) in CWs, each group had three plots of HSSF CWs. One plot was aerated at the bottom of the first quarter of the filtration chamber, one plot was aerated at the bottom of the inflow chamber, and the remaining plot was not aerated as a control. Results showed that aeration at the bottom of the first quarter filtration chamber could contribute to the highest removal efficiency of chemical oxygen demand (COD), ammonium nitrogen (NH4+-N) and total nitrogen (TN). The COD, NH4+-N, and TN removal percentages decreased with the drop in temperature. However, the plot aerated at the bottom of the first quarter filtration chamber with I. sibirica exhibited the best average CODCr, NH4+-N and TN removal percentages in both the warm season (83.6%, 82.7% and 76.8%) and the cool season (66.3%, 44.1% and 43.8%). Therefore, this study indicated that the combination of aerating at the bottom of the first quarter filtration chamber and planting with I. sibirica in the HSSF CWs would be a promising way forward for wastewater treatment, especially in low temperature seasons.

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Modeling the relationship of aeration, oxygen transfer and treatment performance in aerated horizontal flow treatment wetlands

Cited by 34 publications

References 31 publications

Recent Advances in the Application, Design, and Operations & Maintenance of Aerated Treatment Wetlands

Recent Advances in the Application, Design, and Operations & Maintenance of Aerated Treatment Wetlands

Wetlands for environmental protection

The Interaction Effects of Aeration and Plant on the Purification Performance of Horizontal Subsurface Flow Constructed Wetland

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