离子交换装置试制及脱除鱿鱼肝脏镉离子的研究  

Development of an ions exchange device and removal of cadmium ions in squid liver

作　　者：陈一铭[1] 谢美琪[1] 卢航[1] 武龙[1] 赵慧[1] 王玉[1] 赵景华[1] 何沁峰[1] 胡建恩[1] 

机构地区：[1]大连海洋大学,辽宁大连116023

出　　处：《食品工业科技》2016年第16期315-317,339,共4页Science and Technology of Food Industry

基　　金：辽宁省海洋与渔业厅科研项目(201216)

摘　　要：本研究利用大孔阳离子交换树脂脱除鱿鱼肝脏匀浆液中的镉离子。以鱿鱼肝脏匀浆液为原料,镉离子吸附率为评价指标,在试制的离子交换装置基础上研究了大孔强酸性阳离子交换树脂对肝脏匀浆液中镉离子吸附的效果。结果表明,镉离子吸附率随吸附交换时间的增加而升高,当吸附时间为210 min时,离子交换达到平衡状态;降低匀浆液p H,有利于离子交换反应的进行,当p H3.0时,吸附效果较好;树脂用量的增加会提高镉离子的吸附率;镉离子的吸附率在料液比1∶10~3∶10先升高后降低;在25~50℃范围内,升高温度可加快离子交换反应速率。即当树脂用量为20.0 g/L,料液比1∶5,p H3.0,温度为25℃条件下,吸附达平衡状态时,镉离子吸附率可达94.34%。Cdmium ions in squid liver homogenates were removed by macroporous cation exchange resin. Squid liver was experimental material and cadmium ions adsorption efficiency was evaluation index. Research on the adsorption effects of cdmium ions,based on the resin adsorption device,which were in squid liver homogenates.The results suggested that adsorption efficiency of cadmium ions increased with adsorption time,and adsorption equilibrium time was about 210 minutes.Reducing the p H value was conducive to the proceeds of ions exchange reaction.Adsorption efficiency achieved a better state of the homogenates p H3.0. Adsorption efficiency raised when the resin amount increased.With the material- water ratio 1∶ 10 went up to 3∶ 10,the adsorption efficiency first increased and then decreased. Elevated temperatures could accelerate the rate of ions exchange reaction within the temperature range of 25 ~ 50 ℃. The adsorption efficiency of cadmium ions was 94.34% when the adsorption reached equilibrium under the resin amount of 20.0 g / L,material- water ratio of 1 ∶ 5,the p H value of 3.0,the temperature of 25 ℃.

关 键 词：重金属 离子交换装置 离子交换树脂 鱿鱼肝脏 镉离子 脱除 

分 类 号：TS254.1[轻工技术与工程—水产品加工及贮藏工程]