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Article

Performance of a Pilot-Scale Constructed Wetland and Medium-Term Effects of Treated Wastewater Irrigation of Arundo donax L. on Soil and Plant Parameters

1
Department of Agricultural, Food and Forest Sciences, Università degli Studi di Palermo, Viale delle Scienze 13, Building 4, 90128 Palermo, Italy
2
Department of Agricultural and Forest Sciences, Università degli Studi della Tuscia, 01100 Viterbo, Italy
3
Research Consortium for the Development of Innovative Agro-Environmental Systems (Corissia), Via della Libertà 203, 90143 Palermo, Italy
*
Author to whom correspondence should be addressed.
These authors are equally contributed.
Academic Editor: Christos S. Akratos
Water 2021, 13(15), 1994; https://doi.org/10.3390/w13151994
Received: 25 June 2021 / Revised: 17 July 2021 / Accepted: 19 July 2021 / Published: 21 July 2021
On marginal lands in the Mediterranean basin, giant reed (Arundo donax L.) represents one of the most interesting perennial crops due to high levels of biomass production. Considering periodic water shortage during the summer months in this area, the reuse of treated wastewater (TWW) would seem to be a good opportunity for the growth of the species. The aim of this study was to assess the medium-term effects of irrigation using freshwater (FW) and TWW on soil characteristics and growth in giant reed plants. TWW was obtained from a pilot-scale horizontal subsurface flow constructed wetland system (HSSF CWs) with a total surface area of 100 m2. A split-plot design for a two-factor experiment was used with three replications. Medium-term TWW irrigation increased organic matter and plant nutrients in the soil; however, pH was not affected. Plants irrigated with TWW showed greater growth (+10.49% in height, +12.75% in stem diameter, +11.51% in above-ground biomass) than those irrigated with FW. The higher heating value of crop residues ranged between 16.83 (FW-irrigated plants) and 17.00 MJ kg−1 (TWW-irrigated plants). Results show that HSSF CWs produces TWW, which can be an alternative source of water for growing giant reed with high biomass performance. View Full-Text
Keywords: constructed wetland; treated wastewater reuse; giant reed; soil constructed wetland; treated wastewater reuse; giant reed; soil
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MDPI and ACS Style

Licata, M.; Rossini, F.; Virga, G.; Ruggeri, R.; Farruggia, D.; Iacuzzi, N. Performance of a Pilot-Scale Constructed Wetland and Medium-Term Effects of Treated Wastewater Irrigation of Arundo donax L. on Soil and Plant Parameters. Water 2021, 13, 1994. https://doi.org/10.3390/w13151994

AMA Style

Licata M, Rossini F, Virga G, Ruggeri R, Farruggia D, Iacuzzi N. Performance of a Pilot-Scale Constructed Wetland and Medium-Term Effects of Treated Wastewater Irrigation of Arundo donax L. on Soil and Plant Parameters. Water. 2021; 13(15):1994. https://doi.org/10.3390/w13151994

Chicago/Turabian Style

Licata, Mario, Francesco Rossini, Giuseppe Virga, Roberto Ruggeri, Davide Farruggia, and Nicolò Iacuzzi. 2021. "Performance of a Pilot-Scale Constructed Wetland and Medium-Term Effects of Treated Wastewater Irrigation of Arundo donax L. on Soil and Plant Parameters" Water 13, no. 15: 1994. https://doi.org/10.3390/w13151994

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