氨基膦酸树脂对汞、铅混合液的吸附研究

Adsorption Behavior of Amino Methylene Phosphonic Acid Resin for the Mixed Solution of Mercury(II) and Lead(II)

研究氨基膦酸树脂对汞、铅混合溶液的吸附行为 .结果表明 :树脂对混合溶液中的汞、铅都能产生吸附 ;当混合溶液中汞、铅浓度相同时 ,树脂对铅的吸附率要大于树脂对汞的吸附率 ;当混合液中汞、铅浓度不相同时 ,在实验条件下 ,无论是汞的浓度大于铅的浓度 ,还是铅的浓度大于汞的浓度 ,其吸附率都是树脂对铅的吸附率大于树脂对汞的吸附率 ;当树脂的功能基与溶液中汞、铅离子的物质的量相当时 ,树脂能基本完全吸附溶液中的汞、铅离子 .所以 ,氨基膦酸树脂可作为含汞、铅废水的实用吸附剂 .

The adsorption behavior of amino methylene phosphonic acid resin(APAR) for mixed solution of mercury(II) and lead(II) was studied. Experimental results show that the resin could adsorbed mercury and lead meanwhile. As concentration of mercury and lead is same, the resin adsorption rate for lead was larger than adsorption rate for mercury. As concentration of mercury and lead is different, on condition that the experiment, concentration of mercury was larger than lead or concentration of lead was larger than mercury, the resin adsorption rate for lead was larger than adsorption rate for mercury all along. As the molar of the functional group of APAR and the molar of mercury and lead was alike, mercury and lead can has been adsorbed complete in the main by the resin. The resin can take adsorbent for dispose of waste water that contained mercury and lead.