Removing heavy metals like Arsenic (As), Mercury (Hg) and other pollutants from water by aquatic weeds through phytoremediation: A review
Rajani Kumari, Ragini Kumari
Environmental pollution affects the quality of biosphere. Great attempts have been made in the last two decades to reduce pollution sources and mitigate the polluted water resources. Phytoremediation, being more cost-beneficial and fewer side effects than the traditional processes, has gained increasing popularity in both academic and practical life. Continues agricultural practices and other anthropogenic activities lead to heavy metals contamination. Over the past several years, scientists have discovered many examples of living plants that can remove heavy metals and other pollutants from water. Among the various techniques used. Phytoremediation is one of the least harmful, eco-friendly and natural method. Phytoremediation is based upon several process such as phytoextraction, phytostabilization, phytovolatilization and rhizofilteration. Researchers using a variety of plants have reported Phytoremediation of toxic metals. There have been a number of reports that aquatic weeds such as Eichhornia crassipes, Polygonum amphibium, Lemna minor, Oenathe javanica, Lepironia articulate and Potamogeton crispus can accumulate Pb, As, N, P, Cu, Ni, Cd, Fe and Hg from contaminated water (Mo et al., 1989; Jackson, et al., 1990; Dierberg, et al; 1987). This paper review the mechanisms involved in phytoremediation of heavy metals and other pollutants for water resources. This paper also review the focused on the capabilities of aquatic weeds and as an important tool in phytotechnologies in the controlling of contaminants in aquatic environment.
Rajani Kumari, Ragini Kumari. Removing heavy metals like Arsenic (As), Mercury (Hg) and other pollutants from water by aquatic weeds through phytoremediation: A review. International Journal of Ecology and Environmental Sciences. 2020; 2(4): 107-109.