D401树脂脱除扇贝废弃物酶解液重金属的研究  

Study on heavy metals removal from hydrolysate of scallop processing waste by chelating resin D401

作　　者：任丹丹[1] 李佰磊[1] 王添娇 王丽[1] 张立家[1] 汪秋宽[1] 

机构地区：[1]大连海洋大学食品科学与工程学院辽宁省水产品加工及综合利用重点实验室,辽宁大连116023

出　　处：《食品工业科技》2013年第17期139-141,153,共4页Science and Technology of Food Industry

基　　金：辽宁省海洋与渔业厅科研计划项目(201004)

摘　　要：论文探讨了D401螯合树脂对扇贝废弃物酶解液中重金属的静态吸附作用,分别从树脂的投加量、溶液pH、吸附时间等方面研究了树脂的脱除效果,并通过动态洗脱实验研究了D401树脂对扇贝酶解液中重金属的脱除作用。结果表明,超滤可有效降低扇贝酶解液中Pb的含量。D401树脂对扇贝酶解液中重金属脱除具有选择性,它能有效降低Cd的含量,而对Cr作用不明显;D401树脂脱除扇贝酶解液中Cd的条件应控制为:投加量40g/L,pH6,吸附时间300min。D401树脂对扇贝酶解液中Cd的动态脱除率可达到76.08%,而对酶解液中的蛋白质、氨基酸态氮类营养物质影响不大,蛋白质、氨基酸态氮保存率均在90%以上,该树脂可用于扇贝废弃物酶解液重金属Cd的脱除。In this paper, D401 chelating resin as an adsorbent was employed for heavy metals＇ removal from enzyme solution of the scallop in batch experiments.The adsorption property of chelating resin was studied by the influence of chelating resin dosage, solution pH and adsorption time. And the effect of D401 chelating resin removing heavy metals from hydrolysate of scallop was studied by dynamic test.The results showed that Pb can be reduced obviously from scallop enzyme solution by ultrafiltration process.Adsorption of the D401 chelating resin for heavy metals in scallop enzyme solution was selective which had good removal effect on the Cd but no obvious effect on the Cr.The optimum removal condition was as follow： dosage 40g/L, pH6, adsorption time 300min.lt was proved by the dynamic test that removal rate of D401 chelating resin to Cd could be 76.08%, while it had less influence to protein and amino acid nitrogen in hydrolysate of scallop.The retention rate of protein and amino acid nitrogen could reach above 90% above,so it can be used to remove heavy metals Cd in hydrolysate of scallop processing waste.

关 键 词：D401螯合树脂 扇贝 酶解液 脱除 重金属 

分 类 号：TS254.9[轻工技术与工程—水产品加工及贮藏工程]