期刊文献+

一种提高粘土矿物去除赤潮生物能力的新方法 被引量:78

A NEW METHOD TO IMPROVE THE CAPABILITY OF CLAYS FOR REMOVING RED TIDE ORGANISMS
下载PDF
导出
摘要 在研究粘土颗粒与赤潮生物絮凝作用的基础上,建立了粘土表面改性对其絮凝作用影响的理论模型,认为改变粘土颗粒的表面性质是提高其去除赤潮生物能力的主要途径,提出在粘土中引入PACS(聚羟基氯化铝)的改性方法。结果表明,对于微型原甲藻(Prorocentrumminimum)体系,粘土中引入微量PACS后,其去除率达90%以上的高岭土用量由原来的2g/L降至0.1g/L,去除效率提高近20倍。考察了PACS分子量对其促进粘土矿物去除赤潮生物作用的影响,发现不同制备条件的PACS其促进作用亦不相同,得到了最佳性能的PACS。 A theoretical model based on study on the coagulation of red tide organismswith clays shows that the surface modification of clays affects the coagulation andis the main way to improve the capability for clays to remove red tide organisms.The improved method of adding PACS (polyhydroxy aluminum chloride) in clays isfirst proposed. The results show that the concentration of kaoline at which the removal ratio of Prorocentrum minimum is more than 90% decreases to 0.1g/L from2g/L, and that removal efficiency increasing almost 20 times, due to addition ofPACS. The effects of PACS molecular weight on the improvement are also examined.It was found that PACS prepared under different conditions are different in the improvement. PACS with the optimum performance was obtained.
出处 《海洋与湖沼》 CAS CSCD 北大核心 1994年第2期226-232,共7页 Oceanologia Et Limnologia Sinica
基金 国家博士后基金 山东省自然科学基金!93E0157
关键词 粘土矿物 聚羟基氯化铝 赤潮 防治 Clay minerals Control red tide New mothod PACS
  • 引文网络
  • 相关文献

参考文献3

二级参考文献1

  • 1团体著者,1990年

共引文献67

同被引文献713

引证文献78

二级引证文献492

;
使用帮助 返回顶部