超声波协同纳米铁降解2,4-二氯苯酚的研究

Studies on the Degradation of 2,4 - Dichlorophenol by Ultrasound Cooperating with Nanoscale Iron

通过间歇性实验对超声波协同纳米铁降解2,4-二氯苯酚进行了研究,结果表明:协同作用大大提高了降解率, 如在反应时间为2 h,纳米铁体系对2,4-二氯苯酚的降解率为11.3%,超声波体系对2,4-二氯苯酚的降解率为36%,两种反应体系的降解率迭加值为47.3%,而协同体系对2,4-二氯苯酚的降解率则达到88.3%.同时考察了时间、声强、pH、2,4-二氯苯酚初始浓度、反应器的直径和纳米铁粉的投加量等对协同反应降解效果的影响.

The degradation of 2,4 - dichlorophenol by uhrasound cooperating nanoscale iron was studied through intermittence experiments. The results show that the cooperation improved the degradation rate remarkable： the degradation with nanoscalc iron alone is 11.3% and uhrasound alone is 36%, it is 47.3% for the amount with two, however ,the degradation of uhrasound cooperating with nanoscale into is 88.3% . At the same time, all kinds of effect factor e.g. ： time, power intensity, pH ,initialing concentration, the diameter of reactor and quantity of nanoscale iron was introdueed.