Skip to content
Research Article Open access CC BY 4.0

Comparative Studies on the Efficacy of Azadirachta indica and Moringa oleifera in Phytoremediation of Some Selected Heavy Metals from Contaminated Soil

Kambai Collina, Francis Mundi Junior, Nkwokwu Henry Nnamdi, Nanlir Janfa

Asian Journal of Environment & Ecology · pp. 1–11 · Published 8 Jan 2018

10.9734/AJEE/2017/37072

Abstract

This research was carried out to investigate the efficacy of Azadirachta indica (Neem) and Moringa oleifera (Drumstick) in phytoremediation of heavy metals (Ni, Pb and Zn) from the potted contaminated soil. The three selected heavy metals were used to pollute three blocks; each block was subdivided into two subsets of three replicates each per the heavy metal. The two studied plants were transplanted from the nursery into each bag containing contaminated soil. The result of the metal accumulation at the roots of the studied plants indicates that A. indica had the higher mean value of Ni, Pb and Zn absorption (170.0 mg/kg, 119.1 mg/kg and 1.5 mg/kg respectively), whereas the M. oleifera had a lower mean value (0.4 mg/kg, 118.2 mg/kg and 0.9 mg/kg), with no significant difference. The levels of heavy metals in the soil containing A. indica was lower with variation in the level of Pb (p=0.043) but the levels of Zn and Ni (p=0.380 and p=0.144 respectively) was not significant. The bioaccumulation factor shows that A. indica accumulates a higher concentration of heavy metals. This research reveals that both studied plants accumulate high concentration of Ni, Pb and Zn at its root, though A. indica is shown to possess greater ability in accumulating heavy metals.  

Phytoremediation pollution heavy metals Moringa oleifera Azadirachta indica

References (17)

  1. 1 Quantitative assessment of worldwide contamination of air, water and soils by trace metals [DOI]
  2. 2 Air pollution removal by urban trees and shrubs in the United States [DOI]
  3. 3 Phytoremediation of toxic metals : using plants to clean up the environment
  4. 4 Metal Hyperaccumulator Plants: A Review of the Ecology and Physiology of a Biological Resource for Phytoremediation of Metal-Polluted Soils [DOI]
  5. 5 Phytoextraction: a cost-effective plant-based technology for the removal of metals from the environment [DOI]
  6. 6 Plant and rhizosphere processes involved in phytoremediation of metal-contaminated soils [DOI]
  7. 7 A plant genetically modified that accumulates Pb is especially promising for phytoremediation [DOI]
  8. 8 Potential availability of heavy metals to phytoextraction from contaminated soils induced by exogenous humic substances [DOI]
  9. 9 Accumulation and detoxification of lead ions in legumes [DOI]
  10. 10 Assessment of heavy metal accumulation in macrophyte, agricultural soil, and crop plants adjacent to discharge zone of sponge iron factory [DOI]
  11. 11 Weathering of a Mica by Roots and Rhizospheric Microorganisms of Pine [DOI]
  12. 12 Air pollution and microbial ecology [DOI]
  13. 13 Botanica: The Illustrated A--Z of over 10,000 Garden Plants and How to Cultivate Them [DOI]
  14. 14 Heavy metals in rivers and soils of central Chile [DOI]
  15. 15 Bioaccumulation of nickel by five wild plant species on nickel-contaminated soil [DOI]
  16. 16 A Yeast Polyamine Acetyltransferase [DOI]
  17. 17 Growth of tree saplings of Azadirachta indica Juss (Neem) under fertigation with untreated and treated domestic wastewater

Cited by 3

Sustainable Remediation of Industrial Wastewater Using Green Materials

Julio Castillo, Alba Gomez-Arias, Sanele Cebekhulu · Encyclopedia of Green Materials · 2024

Sustainable Remediation of Industrial Wastewater Using Green Materials

Julio Castillo, Alba Gomez-Arias, Sanele Cebekhulu · Encyclopedia of Green Materials · 2023

Showing 2 of 3 known citations — external sources report more than can currently be individually listed.

Article metrics

Real usage data collected on this platform.

18

Page views

0

PDF downloads

1

Outbound clicks

3

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.