alexa Abstract | Kinetic, equilibrium isotherm and thermodynamic study for removal of cadmium from wastewater by using modified pomegranate peel

Journal of Chemical and Pharmaceutical Research
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Original Articles Open Access


The ability of formaldehyde modified pomegranate peel (FMPGP) to adsorb Cd (II) from wastewater has been investigated through batch experiments. The adsorption process was relatively fast and equilibrium was achieved at agitation rate of 120 rpm and after about 120 min of contact. The highest Cd(II) adsorption (98.9%) was observed at pH range 6-8. The kinetic of the adsorption were analyzed using pseudo-first order, pseudo-second order and intraparticle diffusion rate equation. It was shown that the adsorption of cadmium could be described by the pseudo-second order equation suggesting that the ladsorption process is presumably chemisorptions. The equilibrium data fitted Freundlich and Langmuir isotherm model. The maximum adsorption capacity determined from the Langmuir isotherm was found to be 18.52 mg/g at 300 C. Thermodynamic parameters such as ΔG0; ΔH0 and ΔS0 have been evaluated. The ΔGo value for the adsorption processes of Cd (II) was obtained as –2.645, -4.453 and -11.36 kJ/mole at 150, 220 and 300 C, The negative value, ΔG0 indicates the degree of spontaneity of the adsorption process and the higher negative value confirms a more energetically favorable adsorption. The values of ΔH0 and ΔS0 for Cd(II) were obtained as 19.77 kJ/mol and 69.15 J/mol K-1 respectively. The positive value of ΔH0 indicates endothermic nature of adsorption, while positive ΔS0 value confirms the increased randomness at the solid-liquid interface during adsorption. The activation energy for the adsorption of Cd(II), was found as 11.37 kJ/mol also indicating chemisorptions. Therefore FMPGP investigated in this study showed good potential for the removal of cadmium from wastewater.

To read the full article Peer-reviewed Article PDF image

Author(s): Arbind Kumar and Vipin Kumar


Adsorption, pomegranate peel, Cd (II), Kinetic, Isotherm, Thermodynamics., Arbind Kumar and Vipin Kumar

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

1-702-714-7001Extn: 9037

Business & Management Journals


1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

1-702-714-7001 Extn: 9042

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version