太阳光/H_2O_2降解甲基红废水研究

Degradation of Methyl Red Wstewater by Sunlight/H_2O_2

通过测定甲基红废水在降解前后的吸光度,计算出脱色率,研究了在太阳光照射下,H2O2用量、光照时间等因素对脱色率的影响。实验结果表明,在50 m L水样中加入2.0 m L H2O2,光照时间100 min,脱色率达到98%以上。放大实验中,光照时间为150 min时,脱色率可达95%。

Through the determination of methyl red absorbance in the wastewater before and after degradation,the wastewater decolorization rate calculated. In the sunlight,the effects of the concentration of H2O2,illumination time and other factors on the decolorization rate of methyl red wastewater were discussed. The experimental results showed that 2. 0m L H2O2（ 30%） was added in 50 m L water sample,illumination time was 100 min,the decolorization rate was more than 98%. Amplification experiments,illumination time was 150 min,the decolorization rate could reach 95%.