磁性壳聚糖-稀土-粘土复合树脂对赤潮异湾藻的抑制作用  

Inhibitory effect of magnetic chitosan-rare earth-clay composite resin on Heterosigma akashiwo

作　　者：王丽媛[1] 张莉[1] 汪东风[1] 

机构地区：[1]中国海洋大学食品科学与工程学院,山东青岛266003

出　　处：《海洋环境科学》2012年第6期808-812,共5页Marine Environmental Science

基　　金：国家自然科学基金(20807040);山东省自然科学基金(Q2008D11)

摘　　要：利用磁性壳聚糖-稀土–粘土复合树脂颗粒(MCRC)抑制赤潮异湾藻进行了研究。结果表明:MCRC对赤潮异湾藻有较好的抑制效果;在影响MCRC抑藻效果的因素中,添加量对MCRC的抑藻效果影响最大,其次是藻液的初始浓度,pH对抑藻效果的影响最小;当MCRC的添加量为0.8 g/L时,抑藻效果最好,抑藻率可达94.9%。高浓度的MCRC可降低赤潮异湾藻可溶性糖和可溶性蛋白的含量,提高MDA的含量和相对电导率。该方法有望用于防治赤潮异弯藻的实际应用中。The removal of Heterosigma akashiwo by magnetic chitosan-rare earth-clay composite resin was studied in this paper, and the results show that the effect of removal H. akashiwo is significant with MCRC. In the anti-algal effect factors of MCRC, the addition is maximum ,followed by the initial concentration of algae and pH is the minimum influence factor. The optimum addition of MCRC is 0.8 g/L and the inhibiting ratio reaches 94.9%. The high concentration （0.8 g/L） of MCRC can reduce the soluble sugar and soluble protein content of H. akashiwo, and increase the MDA content and relative conductivity. This method is expected to be used for H. akashiwo removal in practical application.

关 键 词：壳聚糖 粘土 稀土离子 赤潮异湾藻 抑藻效果 

分 类 号：X55[环境科学与工程—环境工程]