Abstract
Flyash as an adsorbent was found to be effective for the removal of heavy metals after generation with 2.3% HCl at about pH 6. Iron, lead, manganese and chromium ions were studied for their adsorption efficiency. In the experiments with metals separately lead showed maximum 93% adsorption. In a mixture iron showed maximum adsorption and for lead adsorption was reduced to 28%. Chromium showed minimum adsorption 6.3% in individual experiment and 13.03% in mixture. On the basis of data presented in this communication flyash may be tested at pilot plant level instead of slow sand filtration, for its potential for the treatment of drinking water.
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