缓释铜离子法去除海洋原甲藻赤潮生物的研究

Removal of Red Tide Algae by A Slow Releasing Copper Ions Algaecide

赤潮灾害日趋严重 ,用硫酸铜去除赤潮是国际上仍在使用的最有效方法 .但直接使用硫酸铜易对渔业造成危害 .在研究高岭土、蒙脱土、硫酸铜和可溶玻璃粉去除赤潮藻的基础上 ,提出并研究了可溶玻璃载体缓释 Cu2 +的方法去除赤潮藻 ,并对其凝聚和 Cu2 +除藻模型进行了初步研究 .结果表明 ,可溶玻璃为载体的含铜除藻剂 TB对海洋原甲藻 ( Prorocentrum micans)有明显的去除效果 ,可以极大地减少除藻剂的用量 .含铜越高 ,除藻能力越大 .当含 Cu SO41 5%的 TB用量为 3.5mg/ L时 ,藻细胞去除率在 1 2 h内可达到 96.2 %.由于其缓释 Cu2 +的作用 ,能维持 7d时间藻细胞数目没有明显增加 .TB较硫酸铜减轻了投药过程中易造成局部 Cu2 +浓度过高而伤害鱼类的缺点 .

This paper studied the removal and control of red tide algae by a slow releasing algaecide TB(a glass algaecide copper containing).The results showed that the TB can control and remove the red tide algae effectively.The concentration level of mg/L copper ions are gradually eluted from the surface of the TB as it was dissolved slowly when it is put into water.The level copper can kill the red tide algae and keep not developing was within 7 days.The removal effciency of Prorocentrum micans is more than 96.2% within 12 hours.A theoretical model on the removal of red tide algae was also investigated in the paper.