• Nikhil C. Teli
• Satish A. Bhalerao

As a result of different anthropogenic activities, the world is facing serious threats of air, land and water pollutions. Water pollution in particular, has raised severe environmental impacts. The released heavy metals in water streams represent a risk of ecotoxicity and a potential danger of bioaccumulation. Therefore, removal of heavy metal is one of the most important and severe environmental issues worldwidely. In the present study the potential of Methylglycinediacetic acid modified leaves of Ficus benghalensis (FbMGDA) as a green adsorbent for removal of cadmium [Cd(II)] from aqueous solution was investigated. The modified green adsorbent; before and after biosorption process was characterized by FTIR, SEM-EDX and XRD analysis. The equilibrium studies were systematically carried out in a batch process which covered various process parameters such as effect of pH, contact time, temperature, adsorbent dose, agitation rate and initial ion concentration of Cd(II). The adsorption isotherm study showed that Langmuir model (R2 = 0.9985) provides an appropriate description of metal ion sorption process. The adsorption kinetics was found to follow pseudo-second-order rate kinetic model (R2 = 0.9896). Thermodynamic study revealed that the biosorption process for removal of Cd(II) by using FbMGDA was endothermic, spontaneous and proceeded with increased randomness. Maximum desorption of the Cd(II) metal ions was acquired in 0.1 M HCl eluent. The results from this study revealed that Methylglycinediacetic acid modified leaves of Ficus benghalensis (FbMGDA) is an excellent green adsorbent, economically feasible and sustainable solution for the removal of Cd(II) from water

Ecotoxicity, Methylglycinediacetic acid, cadmium, green adsorbent, biosorption

"CADMIUM (II) SEQUESTRATION FROM AQUEOUS SOLUTION USING METHYLGLYCINEDIACETIC ACID MODIFIED LEAVES OF FICUS BENGHALENSIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.430-442, April-2019, Available :http://www.jetir.org/papers/JETIR1904965.pdf

"CADMIUM (II) SEQUESTRATION FROM AQUEOUS SOLUTION USING METHYLGLYCINEDIACETIC ACID MODIFIED LEAVES OF FICUS BENGHALENSIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp430-442, April-2019, Available at : http://www.jetir.org/papers/JETIR1904965.pdf