Detoxification of aqueous zinc using fluorapatite--bearing lean grade rock phosphate.
Detoxification of aqueous zinc was studied using the adsorption technique by application of fluorapatite bearing low grade phosphate as a sorbent. The effects of particle size of adsorbent, contact time, initial concentration of zinc and temperature on the adsorption process were studied. Initial rate of adsorption of zinc increases with time up to 30 min and thereafter it reaches equilibrium. Percent adsorption is adversely affected by increase in initial concentration of zinc and increase in particle size of sorbent. Adsorption processes follow first order kinetics and are found to be exothermic.
Prasad
M
M
Regional Research Laboratory (C.S.I.R.), Hoshangabad Road, Habibganj Naka, Bhopal-462 006, India.
Saxena
S
S
Amritphale
S S
SS
Chandra
N
N
D000042:Absorption; D001031:Apatites / Q000737:chemistry*; D018786:Bone Substitutes / Q000737:chemistry*; D007700:Kinetics; D014876:Water Pollution / Q000517:prevention & control*; D015032:Zinc / Q000737:chemistry* / Q000633:toxicity
D001031:Apatites; D018786:Bone Substitutes; D015032:Zinc; C025105:fluorapatite