Heavy metal pollution abatement using rock phosphate mineral.
The low-grade rock phosphate of Jhabua, Madhya Pradesh (India), was investigated for its possible application in the removal of lead, copper, zinc and cobalt ions from aqueous solutions. Effects of contact time, amount of adsorbent and initial concentration of metal ions were studied. Adsorption of heavy metal ions was found to follow the order: Pb2+ > Cu2+ > Zn2+ > Co2+. The probable mechanism of metal ions removal by rock phosphate was found to be by its dissolutions followed by subsequent precipitation.
Saxena
Sona
S
Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai-85, India. saxenasona@hotmail.com
D'Souza
S F
SF
D000327:Adsorption; D019216:Metals, Heavy / Q000737:chemistry / Q000302:isolation & purification*; D008903:Minerals / Q000737:chemistry; D010710:Phosphates / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D014877:Water Pollution, Chemical / Q000517:prevention & control; D018508:Water Purification / Q000379:methods
D019216:Metals, Heavy; D008903:Minerals; D010710:Phosphates; D014874:Water Pollutants, Chemical