超声技术降解酸性红B废水

Studies on the Sonolysis of Acid Red Dye Wastewater

以酸性红Ｂ染料模拟废水为对象，考察了废水浓度、ｐＨ、超声时间、ＮａＣｌ投加量及曝气等因素对其超声降解效率的影响．实验结果表明：酸性红Ｂ降解率与超声时间基本上成线性关系；初始浓度高，降解率大；ｐＨ值增大，降解率减小；当溶液中ＮａＣｌ投加量从０ 增加到１ｇ／Ｌ，降解率从４３％ 增加到近９０％ ；再增加溶液中ＮａＣｌ的浓度，对其降解率影响不大；水浴温度升高，酸性红Ｂ降解率增大；曝气及Ｈ２Ｏ２ 投加量对其降解率的影响不大．

In this paper,the effects of wastewater concentration、pH、irradiation time、adding NaCl and aeration on the degradation efficiency of acid red dye were studied.The results show that the degradation efficiency of acid red dye wastewater increase with the increasing of sonication time linearly,augmenting of original solution concentration and the temperature of water,and the decreasing of pH.When the addition of NaCl growing from 0 to 1g/L,the degradation efficiency of acid red dye wastewater increase from 43% to 90%,then keep constant as the addition of NaCl growing.The influences of air and H 2O 2 have less effect on the efficiencies of acid red dye wastewater.