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海水胶体与PO43-、Cu2+的作用及对微藻生长影响
引用本文:赵新淮,张正斌,韩喜江.海水胶体与PO43-、Cu2+的作用及对微藻生长影响[J].哈尔滨工业大学学报,2002,34(6):776-779.
作者姓名:赵新淮  张正斌  韩喜江
作者单位:1. 东北农业大学食品学院,黑龙江,哈尔滨,150030
2. 青岛海洋大学海洋化学研究所,山东,青岛,266003
3. 哈尔滨工业大学理学院,黑龙江,哈尔滨,150001
基金项目:"九五"中国科学院特别支持项目资助(KZ95T-04-04 ).
摘    要:利用超滤技术对海水中的胶体物质进行分级处理来研究胶体与磷酸盐、痕量金属铜之间的作用,通过测定不同超滤膜处理过的海水中PO4^3-、Cu^2 的质量分数,发现有相当量的PO4^3-、Cu^2 被胶体吸附以胶体态存在,例如约有47%的Cu^2 以胶体态存在,合有胶体的海水中PO4^3-的质量分散也比不含胶体的海水中高;微藻培养实验发现,微藻在含有胶体的海水中生长情况较好,而在不含胶体的海水中生长最差,说明胶体也是影响微藻生长的一个因子。胶体对磷酸盐的吸附作用是胶体对微藻生长产生影响的化学基础。

关 键 词:PO4^3-  Cu^2+  生长  胶体  超滤  微藻  海水  磷酸盐  铜(Ⅱ)  化学基础
文章编号:0367-6234(2002)06-0776-04
修稿时间:2001年9月27日

Interaction of colloids with phosphate and cupric ion in seawater and their influence on growth of microalga
ZHAO Xin-hua,ZHANG Zheng-bin,HAN Xi-jiang. College of Food,Northeast Agricultural University,Harbin ,China, . College of Chemistry and Chemical Engineering,Ocean university of Qingdao,Qingdao ,China, . School of Science,Harbin Institute of Technology,Harbin ,China.Interaction of colloids with phosphate and cupric ion in seawater and their influence on growth of microalga[J].Journal of Harbin Institute of Technology,2002,34(6):776-779.
Authors:ZHAO Xin-hua  ZHANG Zheng-bin  HAN Xi-jiang College of Food  Northeast Agricultural University  Harbin  China  College of Chemistry and Chemical Engineering  Ocean university of Qingdao  Qingdao  China  School of Science  Harbin Institute of Technology  Harbin  China
Affiliation:ZHAO Xin-hua,ZHANG Zheng-bin,HAN Xi-jiang1. College of Food,Northeast Agricultural University,Harbin 150030,China, 2. College of Chemistry and Chemical Engineering,Ocean university of Qingdao,Qingdao 266003,China, 3. School of Science,Harbin Institute of Technology,Harbin 150001,China
Abstract:Ultrafiltration technique ( cross - flow filtration ) was applied in this study to fractionate colloids in seawater into different parts, for purpose of determination of the interaction between colloid and phosphate or cupric ion. By analyzing phosphate or silicate or cupric ion content changes in fractionated seawaters, it was found that there was an interaction between colloid and phosphate or silicate or cupric ion, which led to some phosphate or cupric ion being adsorbed to colloid and existed as colloidal form. For example, about 47% cupric ion existed in colloidal form, and phosphate content in seawater with colloid was higher than that in sea-water without colloid. It was also shown in experiments that microalga grew better in seawater with colloid but grew worse in seawater without colloid, which meant that colloid might also be one of influencing factors in microalga growth. The adsorption of some phosphate in colloid might provide a chemical basis for colloid to influence microalga growth.
Keywords:colloid  ultrafiltration  niicroalga  seawater
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