Developing A Novel Adsorbent From Carrot, Tomato And Polyethylene Terephthalate Waste As A Potential Adsorbent For Co (Ii) From Aqueous Solution
About the Practice
Developing a low cost adsorbent utilizing food waste which could be potentially used for water treatment processes instead of high cost metal oxide adsorbents.
Detail:
Heavy metal ions in waste water are known to affect human health, aquatic life and the overall ecosystem in adverse ways. Such pollutants need to be removed however, the technologies utilized for such removal is often expensive and is not easily accessible for all the people around the world. It has been found that chemically activated organic wastes from tomato and carrot can be utilized to remove toxic metal ions and organic pollutants from aqueous solution. To increase the efficiency of the adsorbent these were combined with activated polyethylene terephthalate (PET) to produce a composite adsorbent. This study describes the preparation of novel adsorbents from carrot, tomato and PET. The developed adsorbents were used for the removal of Co (II) from aqueous solutions. The synthesized adsorbent particles were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffractometer (XRD), Field emission scanning electron microscope (FESEM), Electron dispersive x-ray (EDX) and thermogravimetric analysis (TGA). The effect of all the three adsorbents on the physicochemical properties of Co (II) adsorption was studied by varying different parameters such as contact time, adsorbent dose and pH. Kinetic behavior of the three adsorbents for the uptake of Co (II) were studied. The adsorption isotherms such as Langmuir and Freundlich isotherms were used to investigate the equilibrium behavior of the system. Langmuir model was best suited for the composite adsorbent with an adsorption capacity 312.50 mg/g.
About the Innovator
Address: C/O Biren Kumar Changmai gandhinagar, Bijay Path Dibrugarh, Assam
City: Dibrugarh
State: Assam
PIN Code 786001
Email: murchana@iitg.ac.in
Contact No: 9435269159.0
Practice Details
Link: A unique adsorbent was prepared combining food waste and PET waste with a high adsorption capacity for CO (II) from aqueous solutions. Having properties similar to activated carbon, activated PET adsorbent was combined with the benefits of porous activated adsorbent from food waste such as tomato/ carrot waste to obtain a novel adsorbent. The prepared hybrid adsorbent followed second order kinetics and Langmuir isotherm with an adsorption capacity of 312.50 mg/. Cost of power consumption and chemicals used suggested our adsorbents to be priced at 58.93 US$ per kg of adsorbent produced which is far less than the activated carbon available in the market at 172.96 US$ per kg of adsorbent.
Problem Scale: Worldwide