Aquatic macrophytes mediated remediation of toxic metals from moderately contaminated industrial effluent

The present study assessed Zn, Cr, Cd, and Pb removal efficiency of Colocasia esculenta, Hydrilla verticillata, Phragmitis australis, Typha latifolia, and Spirodella polyrhiza from sewage-mixed industrial effluent. The fresh/dry weight and relative growth rate of each macrophyte decreased with incre...

Full description

Saved in:
Bibliographic Details
Published in:International journal of phytoremediation 2018-07, Vol.20 (9), p.876-884
Main Authors: Saraswat, Shweta, Rai, Dr. J. P. N.
Format: Article
Language:English
Subjects:
Accumulation
aquatic macrophytes
bioconcentration factor
Biodegradation, Environmental
Cadmium
Chromium
Effluents
Growth rate
Heavy metals
Hydrocharitaceae
Industrial effluents
Industrial pollution
Industrial wastewater
Lead
Macrophytes
Metals
Metals, Heavy - analysis
phytoremediation
Sewage
Shoots
translocation factor
Typhaceae
Wastewater treatment
Water Pollutants, Chemical - analysis
Zinc
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present study assessed Zn, Cr, Cd, and Pb removal efficiency of Colocasia esculenta, Hydrilla verticillata, Phragmitis australis, Typha latifolia, and Spirodella polyrhiza from sewage-mixed industrial effluent. The fresh/dry weight and relative growth rate of each macrophyte decreased with increasing effluent concentration. H. verticillata and C. esculenta exhibited better growth at 50% effluent over control. The maximum Zn, Cd, and Pb accumulation (1008.23, 28.03, and 483.55 mg/kg dry wt., respectively) was recorded in C. esculenta, whereas Cr (114.48 mg/kg dry wt.) in H. verticillata at 100% effluent. Metal accumulation in roots of all plants species was higher (≥50%) initially with increasing effluent concentration and later transferred to shoots. All plants exhibited BCF >1.0 for all heavy metals, highest being for Zn (91.2) and Cd (75.2) in H. verticillata, for Cr (97.9) and Pb (103) in C. esculenta. Except S. polyrhhiza, all other plants exhibited TF
ISSN:1522-6514
1549-7879
DOI:10.1080/15226514.2018.1438359