期刊论文

The role of Anabaena in the Azolla-Anabaena symbiotic system for the removal of uranium from water

Ding, D.

中文

环境科学学报

0253-2468

2017

37

1

162-168

10.13671/j.hjkxxb.2016.0161

(No.B3720132001):国防基础重点基金 (No.U1401231.11305087):国家自然科学基金 (No.13JJ6050):湖南省自然科学基金 (No.14B150):湖南省教育厅优秀青年项目 :Supported by the Defense Industrial Technology Development Program(No.B3720132001),the National Natural Science Foundation of China(No.U1401231.11305087),the Natural Science Foundation of Hunan Province (No.13JJ6050) and the Outstanding Young Project in Hunan Province Department of Education (No

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通过分离有藻满江红中的鱼腥藻,获得无藻满江红和鱼腥藻.采用水培试验的方法分别研究了无藻满江红、有藻满江红和鱼腥藻对水中铀的去除行为,并采用红外光谱技术分析了它们富集铀前后化学基团的变化.结果表明,对于初始浓度分别为2.5和5.0 mg·L-1的铀溶液,在有藻满江红的作用下,分别经过27和36 d生物富集后浓度能降低至GB 23727-2009规定的0.05 mg·L-1排放标准以下,而在无藻满江红和鱼腥藻的作用下,铀浓度无法达到排放标准.相对于无藻满江红,鱼腥藻提高了有藻满江红对水中铀的富集量、富集系数及对铀的抗胁迫能力,从而提高了有藻满江红对水中铀的去除效率.红外分析表明,在富集铀后,与无藻满江红...

Azolla and Anabaena(ANA) were isolated from Azolla-Anabaena symbiotic system(AASS). Culture experiments were conducted for the removal uranium by Azolla, AASS and ANA, respectively, and the changes of chemical groups in Azolla, AASS and ANA before and after accumulation of uranium were analyzed by using infrared spectrometer. The results show that, after 27 and 36 d of accumulation by AASS, the uranium concentrations of the culture with initial concentrations of 2.5 and 5.0 mg·L-1 were reduced to below 0.05 mg·L-1, which was the discharge lim...