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Preparation of a Heavy Metal‐Removed Seawater
Author(s) -
Pai SuCheng,
Huang ShangDa,
Hung ChinChang
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000073
Subject(s) - chemistry , seawater , slurry , hydroxide , metal , chelating resin , ion exchange , environmental chemistry , activated charcoal , chelation , ion exchange resin , metal ions in aqueous solution , inorganic chemistry , ion , adsorption , oceanography , organic chemistry , environmental engineering , engineering , geology
A purification procedure is described for preparing a heavy metal‐removed blank seawater without altering its major compositions and pH. Coastal seawater is treated sequentially by passing through a charcoal column, shaking with a dense slurry of ferric hydroxide at pH 8, and passing the surpernatant through a Chelex‐100 chelating ion‐exchange column. Experimental data show that this process efficiently removes Cd, Co, Cu, Cr(III), Fe, Mn, Ni, Pb, V and Zn from natural seawater at the spiking concentrations of 10 and 100 ppb levels.