铬添加方式对螺旋藻富铬效果及生长的影响

Effects of different chromium adding methods on the accumulation of chromium, transform of organic-Cr and the growth on Spirulina platensis were investigated. The result showed that when Spirulina platensis was cultivated with low concentration of Cr(III) (234.38 ppm)by adding Cr(III) successively, the total Cr concentration could be 122.13 mg/g and the organic-Cr accounted for 96.04%; and Cr(III) below 234.38 ppm facilitated the growth of Spirulina platensis. considering the accumulation of Cr(III) and the growth of Spirulina platensis, addition of Cr(III) step by step was better than that by one time .