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Mohamed Elsayed Gabr, Nadhir Al-Ansari, Ali Salem and Ahmed Awad
Point and nonpoint wastewater sources have a detrimental, negative effect on agriculture, soil, surface, and groundwater supplies. In this research, a wastewater treatment system made up of a sedimentation tank, a horizontal subsurface flow constructed w...
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Christos S. Akratos, Triantafyllos I. Tatoulis and Athanasia G. Tekerlekopoulou
The objective of this work was to determine the ability of a pilot-scale hybrid system to treat real (non-synthetic) winery wastewater. The experimental treatment system consisted of two stages: An attached growth pilot-scale bioreactor (biological trick...
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Katherine Lizama-Allende, Ignacio Jaque, José Ayala, Gonzalo Montes-Atenas and Eduardo Leiva
Constructed wetlands (CW) have been widely used to treat different types of water, including acid mine drainage (AMD). However, little is known about their performance in the removal of As from AMD. In this study, a laboratory-scale horizontal subsurface...
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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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José de Anda, Alberto López-López, Edgardo Villegas-García and Karla Valdivia-Aviña
This paper describes the preliminary monitoring results of an onsite pilot wastewater treatment plant consisting of a septic tank, an anaerobic up-flow filter, and a horizontal subsurface flow wetland system planted with Agapanthus africanus. The system ...
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G. M. P. R. Weerakoon, K. B. S. N. Jinadasa, G. B. B. Herath, M. I. M. Mowjood and W. J. Ng
Water in agricultural catchments is prone to pollution from agricultural runoff containing nutrients and pesticides, and contamination from the human population working and residing therein. This study examined the quality of water in a drainage stream w...
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Conceição Mesquita, António Albuquerque, Leonor Amaral and Regina Nogueira
Cultural eutrophication stimulated by anthropogenic-derived nutrients represents one of most widespread water quality problems worldwide. Constructed wetlands (CWs) have emerged as an aesthetic, sustainable form of wastewater treatment, but, although the...
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Jun Zhai, Jun Xiao, Md. Hasibur Rahaman, Yasinta John, Jingsong Xiao
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To improve nutrient removal, a full-scale hybrid constructed wetland (CW) consisting of pre-treatment units, vertical-baffled flow wetlands (VBFWs), and horizontal subsurface flow wetlands (HSFWs) was installed in August 2014 to treat sewage wastewater. ...
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Lijuan Cui, Wei Li, Yaqiong Zhang, Jiaming Wei, Yinru Lei, Manyin Zhang, Xu Pan, Xinsheng Zhao, Kai Li and Wu Ma
We monitored the water quality and hydrological conditions of a horizontal subsurface constructed wetland (HSSF-CW) in Beijing, China, for two years. We simulated the area-based constant and the temperature coefficient with the first-order kinetic model....
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Kristjan Oopkaup, Marika Truu, Hiie Nõlvak, Teele Ligi, Jens-Konrad Preem, Ülo Mander and Jaak Truu
Dynamics of bacterial community abundance and structure of a newly established horizontal subsurface flow (HSSF) pilot-scale wetland were studied using high-throughput sequencing and quantitative polymerase chain reaction (PCR) methods. Bacterial communi...
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