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衣藻与黄丝藻在硫酸铜污水中的富集效应

Accumulative Effect of Chlamydomonas and Tribonema in Waste Water of Salphate of Copper

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【作者】 钟恒谢永泉刘伟灵张以顺

【Author】 Zhong Heng;Xie Yongquan;Liu Meiling;Zhang Yishun Department of Biology,.Zhongshan University,Guangzhou 510275

【机构】 中山大学生物学系

【摘要】 在春、夏两季选择3个采样点及1个对照点,样品经过ICP等检测,结果发现,衣藻(Chlamydomonas)在该污水中具高富集铜等效应,是污水处理的理想藻种。

【Abstract】 When 0.5 mg/L CuSO4 was added to the culture medium, the growth of Chlamydomonaswas broken. However,those that had adapted to the waste water with 525 mg/L CuSO4 grew toa large number of pure population,and highly cumulated Cu(41.63%),Fe(34. 92%),Zn(10.09%)and other metals.But Chlamydomonas of pure cultures do not contain these heavy met-als.The algae grown in waste water of CuSO4 with the single pure population growing.In somewater hole,the number of cells of Chlamydomonas was as high as 2440×10 ̄6 cells/ L in earlysummer.The number of cells(growing quantity) of Chlamydomonas not only positively correlatedwith the ionic content of Cu,but also to the ionic content of Ca,and Fe.In some water hole,filaments fo Tribonema are 2997.97μg/g and 38109.76μg/g respectively,500 times and 381times the normal needful quantity of plants.The Tribonema filaments copper cumulative factor of3,4 and 6 indicates that the cumulation of Cu positively correlated with the Cu content in the wa-ter.The copper content of Tribonema chlorophyll is as high as 1756.44μg/g showing that thecomplexing content of chlorophyll molecule and copper was corresponded to 59%of the total cop-per content of the algal filament.In control group(beside the waste water of CuSO4),thechlorophyll molecule coppr of Salxinia natans (belonging to water fern) only contained 52.8μg/g;but the Mg content was as high as 4963.79μg/g, which was 10 times higher than Tribonemachlorophyll molecule Mg. The waste water of CuSO4 containing Fe and Ca compound may elimi-nate the toxicity of CuSO4 from the algae. Chlamydomonas and Tribonema had adapted themselves tothe waste water of CuSO4,and highly cumulated Cu , Fe, Ca and other elements,and chloro-phyll molecule Mg were replaced by Cu and other elements in physiological reaction。

【关键词】 硫酸铜污水衣藻黄丝藻
【Key words】 wasts waterCuSO4ChomydomonasTribonema
  • 【文献出处】 中山大学学报(自然科学版) ,ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI , 编辑部邮箱 ,1995年03期
  • 【分类号】X781.03
  • 【被引频次】6
  • 【下载频次】117
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