Record Details

Adsorption removal kinetics of phosphonate from water Using natural adsorbents

DSpice at Indian Institute of Spices Research

View Archive Info
 
 
Field Value
 
Creator ANIL KUMAR, R
VELAYUDHAN, K T
RAMACHANDRAN, V
SUSEELA BHAI, R
UNNIKRISHNAN, G
VASU, K
 
Date 2011-01-22T05:56:59Z
2011-01-22T05:56:59Z
2010-01
 
Identifier Water Environment Research 82(1): 62-67 (2010)
1554-7531
http://hdl.handle.net/123456789/638
 
Description The removal of phosphonate from water was studied using some natural adsorbents. Potassium phosphonate is a fungicide used for the control of Phytophthora capsici, which is prevalent in black pepper (Piper nigrum L.). Batch adsorption kinetic experiments were conducted on the adsorption of phosphonate onto the adsorbents. The concentration of phosphonate was measured on a high-performance liquid chromatograph fitted with a conductivity detector. The percentage removal of phosphonate by powdered laterite stone (PLS) from water was 40.4%, within a residence time of 15 minutes. The mechanisms of the rate of adsorption were analyzed and compared using the pseudo-second-order, Elovich, and intraparticle diffusion models. The experimental data was found to correlate well with the pseudo-second-order kinetic model, indicating adsorption as a chemisorption process. A possible reaction in the phosphonate-PLS system also has been proposed. The PLS can be used as a low-cost natural adsorbent for phosphonate removal from water.
 
Format 10653 bytes
application/msword
 
Language en
 
Publisher Water Environment Federation
 
Subject potassium phosphonate
adsorption kinetics
pseudo-second-order
powdered laterite stone
 
Title Adsorption removal kinetics of phosphonate from water Using natural adsorbents
 
Type Article