The potential of Mikania micrantha (Chinese creeper) to hyperaccumulate heavy metals in soil contaminated by electronic waste

Ho Man LEUNG, Patrick Ying Kit YUE, Stephen Cho Wing SZE, Chi Kin AU, Kwai Chung CHEUNG, Ka Loi CHAN, Kin Lam Ken YUNG, Wai Chin LI

Research output: Contribution to journalArticle

Abstract

The objective of this study is to investigate the contributions of Mikania micrantha (chinese creeper) to remediate heavy metal pollutants present in an e-waste-contaminated soil. Different proportions of e-waste soil (0%, 25%, 50%, 75%, and 100% w/w) planted with Cynodon dactylon together with the test species were prepared for testing relative seed germination (RSG), relative root growth (RRG), and germination index (GI) tests. A significant higher value of GI (77.8%) was found in M. micrantha than that of the other species when planting in 100% e-waste-contaminated soil. A significant correlation (< 0.05) was found between heavy metal concentration and germination assays in M. micrantha. A significant decrease in heavy metal concentration of the polluted soil after the experiment indicated that biomolecule development studies to determine the aggregate benefit of M. micrantha for phytoremediation remain to be studied in future. Copyright © 2019 Springer-Verlag GmbH Germany, part of Springer Nature.
Original languageEnglish
Pages (from-to)35275-35280
JournalEnvironmental Science and Pollution Research
Volume26
Issue number34
Early online dateNov 2019
DOIs
Publication statusPublished - Dec 2019

Fingerprint

Electronic Waste
Mikania
Germination
Heavy Metals
Heavy metals
germination
Soil
heavy metal
Soils
Cynodon
Environmental Biodegradation
Biomolecules
phytoremediation
Germany
Seed
Assays
Seeds
soil
assay
seed

Citation

Leung, H. M., Yue, P. Y. K., Sze, S. C. W., Au, C. K., Cheung, K. C., Chan, K. L., . . . Li, W. C. (2019). The potential of Mikania micrantha (Chinese creeper) to hyperaccumulate heavy metals in soil contaminated by electronic waste. Environmental Science and Pollution Research, 26(34), 35275-35280. doi: 10.1007/s11356-019-06771-x

Keywords

  • Germination index
  • Relative seed germination
  • Relative root growth
  • Mikania micrantha
  • Heavy metals
  • Phytoremediation