<報文>濃縮廃液からの塩化物イオンの捕集

概要

論文の詳細を見る
Collection of chloride ion (Cl^-) from concentrated waste solutions has been studied by using inorganic anion-exchangers. Lead phosphate hydroxide (Pb_<10>(PO_4)_6(OH)_2,IXE-1000) has a specific adsorption property for Cl^- even in the alkaline region up to pH 12. The adsorption isotherm of Cl^- on IXE-1000 followed Langmuir type adsorption, and the saturated adsorption capacity was estimated to be 0.3 mmol/g. The adsorption of Cl^- on IXE-1000 was independent of SO_4^<2-> concentration; the adsorption attained over 95% even in the presence of 30,000 ppm of SO_4^<2->. The collection of Cl^- from the simulated waste solution was improved by the addition of a cation-exchanger of tin hydrogen phosphate hydrate (IXE-200) to IXE-1000.chloride ionconcentrated waste solutioninorganic anion-exchangerlead phosphate hydroxideadsorption isothermcation-exchangertin hydrogen phosphate hydrate
東北大学の論文
1993-03-30