alexa The Remediation Of Contaminated Water From Heavy Metals (Ni+2, Zn+2) Using Coffee Husk As A Green Sorbent Material
ISSN: 2161-0444

Medicinal Chemistry
Open Access

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International Conference on Stereochemistry
August 18-19, 2016 Sao Paulo, Brazil

Basma Ghaleb Al Hogbi
King Abdulaziz University, Saudi Arabia
Posters & Accepted Abstracts: Med chem
DOI: 10.4172/2161-0444.C1.022
Abstract
Wastewater contamination is a problem, which the whole world is now facing. Industrialization and globalization has led to the production and disposal of large amount of heavy metals in the environment resulted in an increase flux of metallic substances in the aquatic environment. Removing of heavy metals from contaminated water using biomass materials is a modern technology, which is characterized with low cost, high efficiency, renewable source, and availability. Biomass sorption such as coffee bean, chaff, rice husk and peelings from trunk of palm tree were investigated. In this study, coffee husk has been used as sorbent material, batch experiment was performed to study adsorption potential of coffee husk at initial concentration of 400 ppm with different contact time, concentration, pH and temperatures with the (Ni, Zn) metal concentration measured by ICP-OMS. The scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX) was used for characterization studies. The results showed that the equilibrium contact time was 90 minutes and the average removal efficiency was 60% for Ni+2 and 45% for Zn+2. The adsorption capacity of the sorbents was 12.34, 10.30 mg/g for Ni+2 and Zn+2 respectively. The adsorption data was applicable on Langmuir and Freundlich isotherm models and adsorption of Ni and Zn ions perfectly follow the pseudo-second-order kinetic model. The present investigations revealed that the coffee husk as biomass sorbents could be a sufficient removal of heavy metals from wastewaters.
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