Biopolymers in remediation of wastewater: A sustainable approach towards environmental engineering

7^th World Congress on Biopolymers and Polymer Chemistry

June 04-06, 2018 Osaka, Japan

Kaiser Manzoor

Jamia Millia Islamia, India

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Heavy metal poisoning in living systems has led to serious concerns disturbing ecosystems due to industrialization in developing as well as in developed countries. Huge amounts of toxic substances consisting of heavy metal ions, dyes etc., are discharged into the water bodies on daily basis. The heavy metals include copper, cadmium, lead, arsenic and mercury, all of which are highly toxic to all forms of living systems. Besides, EU Regulation 1881/2006/Ã?Â?U has proposed that for aquatic life the permissible limits of Hg, Cd and Pb are 0.5 mg/kg, 0.05 mg/kg and 0.30 mg/kg, respectively. Arsenic mainly discharged from the pesticide industries causes drowsiness, brain damage, peripheral neuropathy and hemorrhages in humans. Cadmium is used in electroplating industries and it is categorized as human carcinogen by International Agency for Research on Cancer. Inhalation of dust containing Cadmium impurities causes vomiting, respiratory problems, kidney problems, abdominal cramps and pulmonary edema. Copper is essential in low concentrations and is present in two forms bound to ceroplasmin and free form which is involved in reducing oxidative stress. However, in excess it leads to impairment of zinc homeostasis which in turn causes disruption of antioxidant enzyme function thereby increasing oxidative stress. We have synthesized an adsorbent by simple esterification reaction by crosslinking carboxymethyl cellulose with chitosan using EDTA as crosslinker. Due to presence of the ample number of amine and hydroxyl groups the adsorption efficiency was increased sufficiently. A large number of evidences justify the strong chelation of the dipositive heavy metal ions by EDTA. kaiser158858@st.jmi.ac.in