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Stan Wehbe, Feleke Zewge, Yoshihiko Inagaki, Wolfram Sievert, Tirumala Uday Kumar Nutakki and Akshay Deshpande
A mechanistic model was developed to simulate one-dimensional pesticide transport in two-stage vertical flow constructed wetland. The two pesticides taken under study were carbendazim and chlorothalonil. The water flow patterns within the constructed wet...
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Stan Wehbe, Feleke Zewge, Yoshihiko Inagaki, Wolfram Sievert, Tirumala Uday Kumar Nutakki and Akshay Deshpande
The Ethiopian floriculture industry produces large amounts of wastewater, which requires treatment systems with lower retention times, higher hydraulic flow, and higher hydraulic loading rates (HLRs). Unsaturated vertical flow constructed wetlands (UVF-C...
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Karolina Migdal, Krzysztof Józwiakowski, Wojciech Czekala, Paulina Sliz, Jorge Manuel Rodrigues Tavares and Adelaide Almeida
The objective of this study was to model the operation of a vertical-flow constructed wetland (VF-CW) for domestic wastewater, using Monte-Carlo simulations and selected probability distributions of various random variables. The analysis was based on col...
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Jiaqing Tao, Ying Zhang, Ting Zhang, Zhaoyang You, Kinjal J. Shah and Hyunook Kim
Constructed wetlands have been applied to micro-polluted rivers and lakes. However, they often show poor nitrogen removal efficiency due to insufficient carbon sources for complete denitrification in the waters. In this study, a vertical-flow wetland sys...
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Katelyn Skornia, Steven I. Safferman, Laura Rodriguez-Gonzalez and Sarina J. Ergas
Wastewater produced during the wine-making process often contains an order of magnitude greater chemical oxygen demand (COD) concentration than is typical of domestic wastewater. This waste stream is also highly variable in flow and composition due to th...
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Qijun Ni, Tao Wang, Jialin Liao, Wansheng Shi, Zhenxing Huang, Hengfeng Miao, Peng Wu and Wenquan Ruan
In this study, pilot-scale vertical-flow constructed wetland (VFCW) and horizontal-flow constructed wetland (HFCW) were constructed to treat eutrophic water, and dissolved oxygen (DO) distributions, decontamination performances and key enzymes activities...
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Jaime Nivala, Clodagh Murphy and Andrew Freeman
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 geographi...
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M. I. Fernandez-Fernandez, P. T. Martín de la Vega, M. A. Jaramillo-Morán and M. Garrido
Constructed wetlands are one of the best technologies for wastewater treatment in small towns, small businesses or farms and/or livestock breeding. In this work, a wastewater depuration ecological system implemented in a hybrid constructed wetland to rem...
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José Alberto Herrera-Melián, Alejandro Borreguero-Fabelo, Javier Araña, Néstor Peñate-Castellano and José Alejandro Ortega-Méndez
A hybrid constructed wetland mesocosm has been used for the treatment of raw urban wastewater. The first stage was a mulch-based, subsurface, horizontal flow constructed wetland (HF). The HF achieved good removals of COD (61%; 54 g/m2·day) and Total Susp...
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Ariani Dwi Astuti,Astri Rinanti,Alexandre Amo F. Viera
Pág. 111 - 121
Domestic wastewater needs to be treated because it can pollute the environment, either water bodies, ground water, or soil. One alternative to treat domestic wastewater is using subsurface constructed wetland methods. This method has advantages, among ot...
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