Contact time analysis for adsorption process in dechlorination

Authors

  • Iswar Man Amatya Pulchowk Campus

Keywords:

Adsorption rate constant, Ammonia, Charcoal, Chlorination, Groundwater

Abstract

Contact time analysis in dechlorination for adsorption process is the subject of the investigation. The contact time in water was performed in batch reactor. Equilibrium studies were conducted over PC, PAC, PACC, GC, GAC, and GACC by using known chlorine solution of concentration 1 and 10 mg/l as adsorbate. The equilibrium studies were performed in several 250ml. bottles. The bottles with adsorbent and adsorbate were placed in shaker at 50- 60 rpm. and samples were withdrawn from 15min to 24hr shaking periods. The residual concentrations in solution were tested by DPD titrimetric standard method. The equilibrium time of 90 % adsorption of the adsorbed amount was calculated as contact time. The result demonstrated that the contact time increases and the rate of adsorption, k decreases with an increment of adsorbent size. Adsorption rate constant was found significantly dependent with particle size of 0.150 to 1.0 mm, where sharp decrease of reaction rate was observed with increase in particle size. Activation of locally available charcoal was found insignificant in dechlorination for adsorption process. Keywords: Adsorption rate constant, Ammonia, Charcoal, Chlorination, Groundwater Nepalese Journal of Engineering Vol.1(1) 2005 pp.46-50
Abstract
2758

Author Biography

Iswar Man Amatya, Pulchowk Campus

Department of Civil Engineering, Pulchowk Campus, Institute of Engineering, Lalitpur-5, Nepal

How to Cite

Contact time analysis for adsorption process in dechlorination. (2005). Nepalese Journal of Engineering, 1(1), 46-50. https://www.nepjol.info/index.php/NJOE/article/view/25

Issue

Vol. 1 No. 1 (2005)

Section

Articles

License

Manuscript Submission to the Journal implies that the work described has not been published before (except in the form of abstract or as a part of published lecture, review or dissertation); that it is not under consideration for publication elsewhere; that its publication has been approved by all coauthors, if any, as well as by the responsible authorities at the institute where the work has been conducted; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher; and that the manuscript will not be published elsewhere in any language without the consent of the copyright holders. All articles published in this Journal are the sole property of the publisher. Reproduction and distribution of material published in this Journal, in any form, is not allowed without the written permission from the publisher. Authors may make their article published by The Horizon available on their personal homepage provided the source of the published article is cited and The Horizon is mentioned as copyright owner. The Journal believes that material contained in it is true and accurate at the time of its publication. Its authors, editors and publishers do not accept any legal responsibility for any omissions and errors that may be made. The Horizon makes no warranty, expressed or implied, with respect to the material contained herein.

How to Cite

Contact time analysis for adsorption process in dechlorination. (2005). Nepalese Journal of Engineering, 1(1), 46-50. https://www.nepjol.info/index.php/NJOE/article/view/25