alexa Kinetic and isotherm studies of cadmium adsorption on manganese nodule residue.
Materials Science

Materials Science

Journal of Material Sciences & Engineering

Author(s): Agrawal A, Sahu KK, Agrawal A, Sahu KK

Abstract Share this page

Abstract The adsorption equilibrium and kinetics studies of cadmium (Cd) ions from aqueous solutions on manganese nodule residue were carried out by considering the influence of various parameters, such as contact time, solution pH and initial metal concentration in solution, temperature and adsorbent quantity. The adsorption of Cd increased with an increase in the concentrations of this metal in solution. Presence of manganese and iron content in manganese nodule residue (MNR) played a significant role in Cd(II) ions removal. The linear forms of the Langmuir and Freundlich equations were utilized for experiments with metal concentrations of 200 mg/L for Cd(II) as functions of solution pH (2.0-6.0). First-order rate equation and pseudo second-order rate equations were applied to study adsorption kinetics. Mass transfer study was also done to know the reaction rate. Thermodynamic parameters, such as standard Gibb's free energy (deltaG(o)), standard enthalpy (deltaH(o)) and standard entropy (deltaS(o)), were also evaluated by Van't Hoff equation. Thus, adsorption of Cd on this adsorbent was found to be spontaneous and exothermic thermodynamically. The adsorption capacity for Cd was found to be 19.8 mg/g of MNR. Under the optimised conditions, cadmium level was brought down from 100 mg/L to Cd less than detection limits and from 200 to 2 mg/L. Thus, the wastewater after cadmium removal could be safely disposed off on to land or sewage. Finally, the metal loaded adsorbent was subjected to desorption using different mineral acids and leaching by using toxicity characteristic leaching procedure (TCLP), synthetic precipitation leaching procedure (SPLP) tests for its further treatment or its safe disposal. This article was published in J Hazard Mater and referenced in Journal of Material Sciences & Engineering

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 8th International Conference and Exhibition on Materials Science and Engineering
    May 29-31, 2017 Osaka, Japan
  • 9th World Congress on Materials Science and Engineering
    June 12-14, 2017 Rome, Italy
  • 3rd International Conference and Expo on Ceramics and Composite Materials
    June 26-27, 2017 Madrid, Spain
  • 2nd International Conference and Exhibition on Materials Chemistry
    July 13-14, 2017 Berlin, Germany
  • 10th International Conference on Emerging Materials and Nanotechnology
    July 27-29, 2017 Vancouver, Canada
  • 10th International Conference on Advanced Materials and Processing
    August 16-17 Edinburgh, Scotland
  • 3rd International Conference on Polymer Science and Engineering
    October 2-4, 2017 Chicago, USA
  • International Conference on Advanced Materials and Nanotechnology
    October 26-28, 2017 Osaka, Japan
  • 13th International Conference and Exhibition on Materials Science and Engineering
    November 13-15, 2017 Las Vegas, Nevada, USA
  • 14th International Conference on Functional Energy Materials
    December 06-07, 2017 Atlanta, USA

Relevant Topics

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