藻引发水中偶氮染料的光降解

随着染料工业的发展，染料废水污染也日益严重。目前各国学者也找到了很多处理水中有机物、治理染料废水的办法，但大多局限于腐殖质、过渡金属离子等非生命物质对染料溶液的光降解，本文研究了鱼腥藻、小球藻对几种偶氮染料的光降解情况，并探讨了影响藻对染料溶液光降解的因素。结果显示，pH＝3时，藻能引发水中染料产生明显的光降解，提高藻的浓度，增加光强，均能加快染料的光降解。本文可为利用水体生物资源治理染料废水提供借鉴和帮助。

Algae-induced Photo-degradation of Azo Dyes in Water

As the development of dying industry, the pollution of waste dying water is more and more serious. At present, scholars from all over the world have found many methods to deal with organic substance in water and to hamess waste dying water. However, but the methods are limited to photo-degradation humus and interim metal ion. In this article photo-degradation of azo dyes by Anabaena and Chlorella is studied;the factors that affect the degradation efficiency of azo dyes solution by algae are discussed. The results show that algae can induce the obvious degradation of dyes in water at pH = 3,the increase of algae concentration and light intensity can speed the photo-degradation of dyes. This article also provides guidelines to the purification of dye-polluted waste-water by biological resources in the waters.