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                                       Details for article 13 of 24 found articles
 
 
  Leaching study of toxic trace elements from flyash in batch and column experiment
 
 
Title: Leaching study of toxic trace elements from flyash in batch and column experiment
Author: Wasay, S. A.
Appeared in: Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
Paging: Volume 27 (1992) nr. 3 pages 697-712
Year: 1992-04
Contents: Leaching of trace elements such as Cr, Fe, Ni, Cu/ Zn, Pb, Sb, As and Se generated from flyash of coal based thermal power plant was studied in a batch and column experiments at pH 6.0 with dentention time of 20 hrs. and flow rate of 10 ml/hr respectively. The leaching was carried out at various poring volume of distilled water at pH 5.0. It was found that the metals in the leachate decreases as the number of pore increases. The concentration of these metals in flyash were determined after extracting with water at pH 6.0 in a batch experiment at different interval of shaking time. Average percentage of leachatable toxic metals was found to be 44.7% and 35.0% for batch and column study. Leaching of iron is almost negligeble. The leaching behaviour of these metals described in terms of specific mass transfer function F(t), which gives the net release rate of metals. The metals were analysed by the atomic absorption spectrophotometer.
Publisher: Taylor & Francis
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 13 of 24 found articles
 
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