海水淡化浓海水对海洋浮游植物的影响研究

作者:寇希元;苗英霞;陈进斌;任华峰;邱金泉;韩家新; 刊名:盐科学与化工 上传者:严宇

【摘要】分析了舟山六横海水淡化浓海水排水的水质及其重金属污染物,研究了海水淡化浓海水对中肋骨条藻、旋链角毛藻、多列拟菱形藻和隐秘小环藻生长的影响,探讨了高盐度海水对藻类生长的影响机理。结果表明,海水淡化浓海水的营养盐以及重金属含量均明显高于原海水。海水淡化浓海水对四种海藻的生长有不同影响。中肋骨条藻、旋链角毛藻、隐秘小环藻在浓海水中有一定的生长能力,多列拟菱形藻对浓海水盐度较为敏感。总体来看,个体较大的藻细胞对盐度升高更敏感。在高盐度海水条件下培养初期,浓海水中的营养盐及重金属对中肋骨条藻、旋链角毛藻和多列拟菱形藻的生长具有促进作用。

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海水淡化浓海水对海洋浮游植物的影响研究 寇希元,苗英霞,陈进斌,任华峰,邱金泉,韩家新 ( 国家海洋局 天津海水淡化与综合利用研究所,天津 300192) 摘 要: 分析了舟山六横海水淡化浓海水排水的水质及其重金属污染物,研究了海水淡化浓海水对中肋骨条藻、旋链角毛藻、多列拟菱形藻和隐秘小环藻生长的影响,探讨了高盐度海水对藻类生长的影响机理。结果表明,海水淡化浓海水的营养盐以及重金属含量均明显高于原海水。海水淡化浓海水对四种海藻的生长有不同影响。中肋骨条藻、旋链角毛藻、隐秘小环藻在浓海水中有一定的生长能力,多列拟菱形藻对浓海水盐度较为敏感。总体来看,个体较大的藻细胞对盐度升高更敏感。在高盐度海水条件下培养初期,浓海水中的营养盐及重金属对中肋骨条藻、旋链角毛藻和多列拟菱形藻的生长具有促进作用。关键词: 海水淡化; 浓海水; 高盐度; 浮游植物 中图分类号:P747 文献标识码:A 文章编号:2096 -3408(2019)03 -0020 -05 Impacts of the Concentrated Seawater Discharged from Seawater Desalination on the Marine Phytoplankton KOU Xi - yuan,MIAO Ying - xia,CHEN Jin - bin, REN Hua - feng,QIU Jin - quan,HAN Jia - xin ( Tianjin Institute of Seawater Desalination and Multipurpose Utilization,SOA,Tianjin 300192,China) Abstract: The water quality and heavy metal pollutants of concentrated seawater drainage from Liuheng Island seawater desalination plant in Zhoushan were analyzed. The impacts of concen-trated seawater from desalination plant on the growth of Skeletonema costatum,Chaetoceros curvise-tus,Pseudo - nitzschia multiseries and Cyclotella cryptic were studied. The impact mechanism of concentrated seawater on the growth of algae was discussed. The results showed that the contents of nutritive salts and heavy metals in concentrated seawater were significantly higher than those in orig-inal seawater. Concentrated seawater from seawater desalination plant have different impacts on the growth of four kinds of marine microalgae. Skeletonema costatum,Chaetoceros curvisetus and Cyclo

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