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Publication Type J
Authors Fountoulakis, M., G. Daskalakis, A. Papadaki, N. Kalogerakis and T. Manios
Title Use of halophytes in pilot-scale horizontal flow constructed wetland treating domestic wastewater
Source Environmental Science and Pollution Research
Author Keywords Biochemical oxygen demand Coliforms Electrical conductivity Planted filter bed influent cod/n ratios subsurface-flow phragmites-australis bacteria removal nitrogen removal organic-matter loading rate plants phytoremediation performance
Abstract Recent findings encourage the use of halophytes in constructed wetlands for domestic wastewater treatment due to their special physiological characteristics as the ability to accumulate heavy metals and salts in their tissues makes them ideal candidates for constructed wetland vegetation. In this particular study, we investigated the application of halophytic plants in a horizontal flow constructed wetland for domestic wastewater treatment purposes. The pilot plant which was situated in Crete (Greece) was planted with a polyculture of halophytes (Tamarix parviflora, Juncus acutus, Sarcocornia perrenis, and Limoniastrum monopetalum). The system's performance was monitored for a period of 11 months during which it received primary treated wastewater from the local wastewater treatment plant. Results show that halophytes developed successfully in the constructed wetland and achieved organic matter and pathogen removal efficiencies comparable to those reported for reeds in previous works (63% and 1.6 log units, respectively). In addition, boron concentration in the effluent was reduced by 40% in comparison with the influent. Salinity as expressed by electrical conductivity did not change during the treatment, indicating that the accumulation of salts in the leaves is not able to overcome electrical conductivity increasing due to evapotranspiration. The results indicate an improvement in the treatment of domestic wastewater via the use of halophyte-planted CWs.
Author Address [Fountoulakis, Michael S.; Daskalakis, Giorgos; Papadaki, Akrivi; Manios, Thrassyvoulos] Technol Educ Inst Crete, Dept Agr, Iraklion, Greece. [Fountoulakis, Michael S.; Daskalakis, Giorgos; Papadaki, Akrivi; Manios, Thrassyvoulos] TM Solut Ltd, Iraklion, Greece. [Kalogerakis, Nicolas] Tech Univ Crete, Sch Environm Engn, Khania, Greece. Fountoulakis, M (reprint author), Technol Educ Inst Crete, Dept Agr, Iraklion, Greece.; Fountoulakis, M (reprint author), TM Solut Ltd, Iraklion, Greece. mfountoul@staff.teicrete.gr
ISSN 0944-1344
ISBN 0944-1344
29-Character Source Abbreviation Environ. Sci. Pollut. Res.
Publication Date Jul
Year Published 2017
Volume 24
Issue 20
Beginning Page 16682-16689
Digital Object Identifier (DOI) 10.1007/s11356-017-9295-8
Unique Article Identifier WOS:000405580000014

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