Impact of heavy metal toxicity and constructed wetland system as a tool in remediation
The objective of this review is to throw light upon the global concern of heavy metal-contaminated sites and their remediation through an ecofriendly approach. Accumulated heavy metals in soil and water bodies gain entry through the food chain and pose serious threat to all forms of life. This has e...
Saved in:
Published in | Archives of environmental & occupational health Vol. 71; no. 2; pp. 102 - 110 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
Taylor & Francis
03.03.2016
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The objective of this review is to throw light upon the global concern of heavy metal-contaminated sites and their remediation through an ecofriendly approach. Accumulated heavy metals in soil and water bodies gain entry through the food chain and pose serious threat to all forms of life. This has engendered interest in phytoremediation techniques where hyperaccumulators are used. Constructed wetland has a pivotal role and is a cost-effective technique in the remediation of heavy metals. Metal availability and mobility are influenced by the addition of chelating agents, which enhance the availability of metal uptake. This review helps in identifying the critical knowledge gaps and areas to enhance research in the future to develop strategies such as genetically engineered hyperaccumulators to attain an environment devoid of heavy metal contamination. |
---|---|
ISSN: | 1933-8244 2154-4700 |
DOI: | 10.1080/19338244.2014.988674 |