双酚A在含有藻类、腐殖酸和铁离子的模拟湖水中的光降解作用。
Photodegradation of bisphenol A in simulated lake water containing algae, humic acid and ferric ions.
作者信息
Peng Zhang'e, Wu Feng, Deng Nansheng
机构信息
School of Resources and Environmental Science, Wuhan University, Wuhan 430079, People's Republic of China.
出版信息
Environ Pollut. 2006 Dec;144(3):840-6. doi: 10.1016/j.envpol.2006.02.006. Epub 2006 Apr 5.
The photodegradation of bisphenol A (BPA), a suspected endocrine disruptor (ED), in simulated lake water containing algae, humic acid and Fe3+ ions was investigated. Algae, humic acid and Fe3+ ions enhanced the photodegradation of BPA. Photodegradation efficiency of BPA was 36% after 4h irradiation in the presence of 6.5 x 10(9) cells L(-1) raw Chlorella vulgaris, 4 mg L(-1) humic acid and 20 micromol L(-1) Fe3+. The photodegradation efficiency of BPA was higher in the presence of algae treated with ultrasonic than that without ultrasonic. The photodegradation efficiency of BPA in the water only containing algae treated with ultrasonic was 37% after 4h irradiation. The algae treated with heating can also enhance the photodegradation of BPA. This work helps environmental scientists to understand the photochemical behavior of BPA in lake water.
对双酚A（BPA）这种疑似内分泌干扰物（ED）在含有藻类、腐殖酸和Fe3+离子的模拟湖水中的光降解情况进行了研究。藻类、腐殖酸和Fe3+离子增强了双酚A的光降解。在存在6.5×10（9）个细胞/L的原始普通小球藻、4mg/L腐殖酸和20μmol/L Fe3+的情况下，照射4小时后双酚A的光降解效率为36%。在经过超声处理的藻类存在下，双酚A的光降解效率高于未经超声处理的情况。仅含有经过超声处理的藻类的水中，照射4小时后双酚A的光降解效率为37%。经过加热处理的藻类也能增强双酚A的光降解。这项工作有助于环境科学家了解双酚A在湖水中的光化学行为。
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