biopolymers-bioplastics-2017-posters-abstracts

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Volume 8, Issue 6 (Suppl)

J Bioremediat Biodegrad, an open access journal

ISSN:2155-6199

Biopolymers & Bioplastics 2017

October 19-20, 2017

October 19-20, 2017 San Francisco, USA

International Conference and Exhibition on

Biopolymers and Bioplastics

An investigation on the application of chitosan based organic-inorganic hybrid biocomposites in water

treatment

Wondalem Misganaw Golie

and

Sreedevi Upadhyayula

Indian Institute of Technology Delhi, India

hitosan and its derivatives have got a wide range of applications in the field of environmental engineering field for the removal of

innumerable noxious contaminants because of their several distinctive features such as being low cost, non-toxic, biocompatible,

biodegradable, and adsorptive property. In this study, three types of crosslinked organic-inorganic hybrid biocomposites, such as

chitosan/bentonite, chitosan/titanium oxide were prepared and utilized for the removal of nitrate from water by batch biosorption

experiments. Effects of crosslinker dose, initial nitrate concentration, contact time, initial pH of the nitrate solution, biosorbent dose,

temperature, and the presence of competitive ions on adsorption capacities were investigated. Actual adsorption capacities of ChBT,

ChTi, and ChAl at a crosslinker to chitosan solution ratio of 1:40 were 35.68 and 43.62, and 45.38 mg/g as nitrate respectively. The

actual adsorption capacities decreased with increase in crosslinker dose. Adsorption equilibrium isotherm models data were well

fitted to the linear Freundlich isotherm model. Thermodynamic parameters indicate that adsorption process was spontaneous and

endothermic. The adsorption process was better described by a pseudo-second-order equation. The results show that chitosan based

organic-inorganic biocomposites are effective, low cost, and reusable for the removal of nitrate from water. This an indication of the

applicability of biocomposites in water treatment.

J Bioremediat Biodegrad 2017, 8:6 (Suppl)

DOI: 10.4172/2155-6199-C1-012