Abstract
Abstract For the effective use of activated carbon as an antidote in acute diquat poisoning, the adsorption characteristics of diquat onto activated carbon from saline solution were investigated. The amount of diquat adsorbed onto activated carbon was increased with the increase of sodium chloride concentration in diquat solution. The rate of diquat removal by activated carbon from saline solution was also accelerated with the increase of sodium chloride concentration. These results suggest that the enhanced adsorptivity for diquat is due to the strengthening of electrostatic interaction between the surface of activated carbon and diquat with the increase of sodium chloride concentration in solution.
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