This collection compiles papers from the 16th International Conference on Wetland Systems (ICWS), which were published after review in the journal Water Science and Technology. This IWA Specialist Group Conference took place 30 September – 4 October 2018 in Valencia, Spain.

Numerical simulation of vertical flow wetlands with special emphasis on treatment performance during winter

Alba Canet Martí, Bernhard Pucher, Carmen Hernández-Crespo, Miguel Martín Monerris, Guenter Langergraber

Water Science and Technology (20 November 2018) 78 (9): 2019–2026.

DOI: https://doi.org/10.2166/wst.2018.479

The new German standard on constructed wetland systems for treatment of domestic and municipal wastewater

Jaime Nivala, Manfred van Afferden, Ralf Hasselbach, Guenter Langergraber, Pascal Molle ...

Water Science and Technology (28 December 2018) 78 (11): 2414–2426.

DOI: https://doi.org/10.2166/wst.2018.530

Design and start-up of a constructed wetland as tertiary treatment for landfill leachates

Ester Coppini, Laura Palli, Alexandra Antal, Massimo Del Bubba, Elisangela Miceli ...

Water Science and Technology (18 January 2019) 79 (1): 145–155.

DOI: https://doi.org/10.2166/wst.2019.030

Assessment of clogging in constructed wetlands by saturated hydraulic conductivity measurements

F. Licciardello, R. Aiello, V. Alagna, M. Iovino, D. Ventura, G. L. Cirelli

Water Science and Technology (31 January 2019) 79 (2): 314–322.

DOI: https://doi.org/10.2166/wst.2019.045

Outflow dynamics in a French system of vertical wetlands operating with an extended feeding cycle

Mirene Augusta de Andrade Moraes, Jorge A. García Zumalacarregui, Camila Maria Trein, Vinícius Verna M. Ferreira, Marcos von Sperling

Water Science and Technology (5 March 2019) 79 (4): 699–708.

DOI: https://doi.org/10.2166/wst.2019.088

Investigation of the potential of buffalo and couch grasses to grow on AFIs and for removal of nutrients from paper mill wastewater

J. R. Ayres, J. Awad, H. Burger, J. Marzouk, J. van Leeuwen

Water Science and Technology (14 March 2019) 79 (4): 779–788.

DOI: https://doi.org/10.2166/wst.2019.098

On the performance of a pilot hybrid constructed wetland for stormwater recovery in Mediterranean climate

D. Ventura, S. Barbagallo, S. Consoli, M. Ferrante, M. Milani ...

Water Science and Technology (20 March 2019) 79 (6): 1051–1059.

DOI: https://doi.org/10.2166/wst.2019.103

From start-up to heavy clogging: performance evaluation of horizontal subsurface flow constructed wetlands during 10 years of operation

Gabriel Rodrigues Vasconcellos, Marcos von Sperling, Roberta Silva Ocampos

Water Science and Technology (19 April 2019) 79 (7): 1231–1240.

DOI: https://doi.org/10.2166/wst.2019.062

Carex paniculata constructed wetland efficacy for stormwater, sewage and livestock wastewater treatment in rural settlements of mountain areas

D. Cicero Fernandez, J. A. Expósito Camargo, M. Peña Fernandez, B. Antizar-Ladislao

Water Science and Technology (12 April 2019) 79 (7): 1338–1347.

DOI: https://doi.org/10.2166/wst.2019.130

Analysis of carbon sink effects for saline constructed wetlands vegetated with mangroves to treat mariculture wastewater and sewage

Lei Yang, Chung-Shin Yuan

Water Science and Technology (22 April 2019) 79 (8): 1474–1483.

DOI: https://doi.org/10.2166/wst.2019.145

The role of concentrations gradients on phosphorus and iron dynamics from chemically-dosed horizontal flow wetlands for tertiary sewage treatment

Jan Barak, Gabriela Dotro, Bruce Jefferson

Water Science and Technology (24 June 2019) 79 (11): 2126–2134.

DOI: https://doi.org/10.2166/wst.2019.215

Design and performance of a coarse media, high hydraulic load polishing wetland for steel industry wastewater

Viet Anh Nguyen, Minh Phuong Nguyen, Karin Tonderski, Hai Do Thi, Anh Thi Kim Bui

Water Science and Technology (22 July 2019) 80 (1): 59–66.

DOI: https://doi.org/10.2166/wst.2019.244

Economic assessment of aerated constructed treatment wetlands using whole life costing

A. I. Freeman, S. Widdowson, C. Murphy, D. J. Cooper

Water Science and Technology (22 July 2019) 80 (1): 75–85.

DOI: https://doi.org/10.2166/wst.2019.246

Reduction of area and influence of the deposit layer in the first stage of a full-scale French system of vertical flow constructed wetlands in a tropical area

Camila Maria Trein, Jorge Alejandro García Zumalacarregui, Mirene Augusta de Andrade Moraes, Marcos von Sperling

Water Science and Technology wst2019278.

DOI: https://doi.org/10.2166/wst.2019.278

Influence of design parameters on the treatment performance of VF wetlands – a simulation study

Bernhard Pucher, Guenter Langergraber

Water Science and Technology wst2019268.

DOI: https://doi.org/10.2166/wst.2019.268