“…The heavy metal pollution has been recognized as a serious problem because these metals are non-biodegradable elements and they have a great danger to human, animals and plants (He and Chen, 2014;Huang et al, 2016;Gong et al, 2019). Biosorption could be defined as the ability of biological materials such as bacteria (Titah et al, 2019, Titah et al, 2018Purwanti et al, 2019), plants (Ismail et al 2019; Kamaruzzaman et al 2019) and algae (Deng et al, 2007) to adsorb heavy metal ions from aqueous solutions by the physico-chemical pathways of uptake. The conventional treatments used for metals removal, such as chemical precipitation, membrane separation, evaporation, electro winning or resin ionic exchange, could be very expensive, and sometimes not effective enough (Aydın and Bulut, 2008).…”