shivakumar mNARENDRA KUMAR MAURYA2023-12-272023-12-272022https://krishikosh.egranth.ac.in/handle/1/5810204678The pollution of surface and subsurface water is a severe unhealthy as a result of increased urbanisation and rapid population rise. Heavy metals such as copper (Cu), nickel (Ni), cadmium (Cd), chromium (Cr), lead (Pb), and argon (Ar) are found in waste water, causing toxicity in humans and the environment. Phytoremediation is the process of reducing pollutant concentrations in polluted soils, water, or air by using plants that can hold, eliminate metals, pesticides, solvents, explosives, crude oil and its derivatives, and other contaminants from the media in which they are present. A trial of 28 days was conducted on aquatic macrophytes such as Eichhornia crassipes, Azolla pinnata, Pistia stratiotes, and Lemna minor that offer significant potential for heavy metal clean up, such as Cadmium (Cd) and Lead (Pb). The experimental setup was done with 2, 4, 10 and 15 mg L-1 CdCl2 and Pb (NO3)2, which were separately harvested at 0, 7, 14, 21 and 28 days and the Cd and Pb concentration in the roots and shoot tissues were estimated by atomic absorption spectroscopy (AAS). The Cd metal accumulation in E. crassipes and P. stratiotes treated in 15 mg L-1 metal solution observed to be highest in roots and shoots at 21st day and 28th day as 52.02 mg kg-1 and 34.61 mg kg-1; 53.82 mg kg-1 and 46.83 mg kg-1 respectively. The Cd accumulation in A. pinnata and L. minor observed to be highest in 15 mg L-1 treated metal solution as 27.26 mg kg-1 and 18.72 mg kg-1 respectively. The Pb metal accumulation in E. crassipes and P. stratiotes treated in 15 mg L-1 metal solution observed to be highest in roots and shoots at 21st day and 28th day as 26.18 mg kg-1 and 34.61 mg kg-1; 73.02 mg kg-1 and 51.44 mg kg-1 respectively. The Pb accumulation in A. pinnata and L. minor observed to be highest in 15 mg L-1 treated metal solution as 28.19 mg kg-1 (28th day) and 18.40 mg kg-1 (14th day). The bioaccumulation factor of E. crassipes, A. pinnata, P. stratiotes, and L. minor of Cd and Pb metal were 78.95, 84.09, 178.53, 45.79 and 89.91, 77.36, 365.10, 242.67 respectively. The translocation factor of E. crassipes and P. stratiotes of Cd and Pb metal were 1.15 and 1.15; 1.04 and 0.94 respectively.EnglishThesis