| 摘要 |
<p>PURPOSE:To make harmful metals which exist in eluate from waste batteries insoluble by impregnating paste prepared by kneading zinc sulfide powder with water soluble high polymer comound in porous paper, and fixing the paper in a space where no battery reaction takes place. CONSTITUTION:Zinc sulfide powder is kneaded with sol of water soluble high polymer compound such as CMC, sodium polyacrylate, or polyvinyl alcohol to prepare paste. The paste is impregnated in and coated on porous paper and dried. The paper is fixed in a space where no battery reaction takes place. Harmful heavy metals such as mercury and cadmium which exist in eluate from waste batteries are made insoluble as inorganic sulfide. Nylon nonwoven fabric is preferable as the porous paper.</p> |
