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Phytoremediation potential of three aquatic macrophytes in manganese‐contaminated water
Author(s) -
Hua Jianfeng,
Zhang Chuisheng,
Yin Yunlong,
Chen Ruirui,
Wang Xingxiang
Publication year - 2012
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.2011.00293.x
Subject(s) - phytoremediation , eichhornia crassipes , hyacinth , alternanthera philoxeroides , manganese , aquatic plant , macrophyte , chemistry , environmental chemistry , bioconcentration , shoot , horticulture , bioaccumulation , agronomy , biology , heavy metals , ecology , weed , organic chemistry
M anganese ( Mn ) uptake capacities of water hyacinth ( E ichhornia crassipes ( M art.) S olms, water lettuce ( P istia stratiotes L .) and slligator alternenthera ( A lternanthera philoxeroides ) were investigated with four Mn levels: 0(control), 50, 200, 400 mg/L . With increased Mn exposure, the tested plants showed similar responses with a decrease in relative growth rate and an increase in plant Mn concentrations. Comparatively, water lettuce had the significantly higher total Mn concentrations, shoots enrichment factor and translocation factor at all Mn ‐treated treatments and the much greater total Mn removal at concentrations of 200 and 400 mg/L Mn . In most cases, Mn pollution significantly decreased Mg concentrations for all three plants. Concomitantly, increment trends of Fe , Cu and Zn concentrations were observed for water lettuce with the increasing external Mn concentrations, which could partly contribute to its higher Mn concentrations. The results indicated that water lettuce have standout potentials as a phytoremediation plant for Mn contaminated waters.