UV/Mn^(2+)-Fe^(3+)/H_2O_2处理染料废水的实验研究

Experimental Study on UV/Mn^(2+)-Fe^(3+)/H_2O_2 for Wastewater Treatment

研究了常温常压下UV/Mn^(2+)-Fe^(3+)/H_2O_2光催化非均相反应体系处理偶氮染料模拟废水的特性,并与UV-Mn^(2+)/H_2O_2、UV/Fe^(2+)/H_2O_2等体系处理染料废水的效果进行了对比;考察了Mn^(2+)、Fe^(2+)、Fe^(3+)、H_2O_2投加量对UV/Mn^(2+)-Fe^(3+)/H_2O_2反应体系处理染料废水的影响。结果表明,UV/Mn^(2+)-Fe^(3+)/H_2O_2反应体系具有良好的催化氧化作用,在20 w紫外光照射下,100 mg·L^(-1)的直接大红D-GLN在反应20 min时,降解效率高达到90%以上。

Heterogeneous catalytic reaction system of UV/Mn2＋-Fe3＋/H2O2 was applied to treat azo dyes wastewater. And the treatment effect of UV/Mn2＋-Fe3＋/H2O2, UV/Fe2＋/H2O2 system etc were contrasted. The doeing quantity of Mn2＋ , Fe2＋, Fe3＋, H2O2 for treating azo dyes wastewater were investigatde. Results showed that UV/Mn2＋-Fe3＋/H202 system has a good catalytic oxidation. Examines adding the amotmt of Results showed that UV/Mn2＋-Fe3＋/H2O2 system has a good catalytic oxidation. Under 20 W UV irradiation and an irradiation time of 20 min, the removal capability on direct scarlet D-GLN was above 90 % with the initial mass concentration of 100 mg.L-1.