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Publication Type J
Authors Xu, Q., S. Renault and Q. Y. Yuan
Title Phytodesalination of landfill leachate using Puccinellia nuttalliana and Typha latifolia
Source International Journal of Phytoremediation
Language English
Author Keywords Fertilizer landfill leachate phytodesalination Puccinellia nuttalliana Typha latifolia chlorophyll fluorescence chloride accumulation facultative halophyte sodium-chloride salt stress soil phytoremediation growth irrigation phosphorus Environmental Sciences & Ecology
Abstract Landfilling has been widely used for solid waste disposal; however, the generation of leachate can pose a major threat to the surrounding environment in the form of soil salinity. Two native plants of North America Puccinellia nuttalliana (alkaligrass) and Typha latifolia (cattail) were selected in this study to investigate bioaccumulation of sodium (Na+) and chloride (Cl-) under controlled greenhouse conditions. The treatments include irrigation of the plants using fertilizer (F), landfill leachate (LL), and tap water (control, C). Plants cultivated after one season (12 weeks) were harvested by separating aboveground tissues and roots, and soil from each treatment was collected for analysis. The results show that alkaligrass irrigated with LL had 2.13% more biomass yield than control, but 17.63% less than that with F. However, cattail yielded 19.70% more biomass with the irrigation of LL than C and 3.04% less compared to F. Alkaligrass and cattail accumulated 6.85 and 7.00 g Na+/Kg biomass with the irrigation of LL, respectively. Alkaligrass and cattail irrigated with LL accumulated 120.14% and 94.47% more Cl- than C. When alkaligrass and cattail were irrigated with LL, the electrical conductivity of soil was reduced by 71.70% and 45.36%, respectively. This study demonstrated that using North American native halophytes could be a cost-effective and promising approach for phytoremediation of landfill leachate.
Author Address [Xu, Qian; Yuan, Qiuyan] Univ Manitoba, Dept Civil Engn, Winnipeg, MB R3T 2N2, Canada. [Renault, Sylvie] Univ Manitoba, Dept Biol Sci, Winnipeg, MB, Canada. Yuan, QY (reprint author), Univ Manitoba, Dept Civil Engn, Winnipeg, MB R3T 2N2, Canada. qiuyan.yuan@umanitoba.ca
ISSN 1522-6514
ISBN 1522-6514
29-Character Source Abbreviation Int. J. Phytoremediat.
Publication Date Jul
Year Published 2019
Volume 21
Issue 9
Beginning Page 831-839
Digital Object Identifier (DOI) 10.1080/15226514.2019.1568383
Unique Article Identifier WOS:000469652700001
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