摘要
目的考查直流电凝聚法和交流电凝聚法对偶氮染料废水处理效果的差异.探索电流密度对处理效果的影响.方法以铁皮为阳极,石墨柱为阴极,改变电流密度,分别用直流电和交流电进行电凝聚对比试验.结果直流电凝聚法对染料质量浓度的去除率随电流密度的增大而增大,当电流密度为0.083 mA/cm2时,染料质量浓度的去除率达到97.63%.同时,色度、CODCr、氨氮也有一定的去除效果.而交流电凝聚法对偶氮染料废水的处理能力较差,其染料质量浓度的最大去除率为16.01%.结论直流电凝聚法在电解、絮凝等共同作用下可有效的处理偶氮染料废水,而交流电凝聚法对偶氮染料废水的处理无明显效果.
The paper aimed to compare the different effects of removing azo dye in wastewater between direct current(DC)and alternating current(AC)electrocoagulation methods,and explored the impact of current density on the treatment effect.In this experiment,iron was served as anode,graphite column was served as cathode,the current density was changed,contrastive experiments were carried out with DC and AC electrocoagulation methods.The results showed that the removal ratio of azo dye concentration increased with the...
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2011年第1期125-129,共5页
Journal of Shenyang Jianzhu University：Natural Science
基金
住房和城乡建设部科学技术项目(2010-K7-14)
辽宁省(高校)市政与环境工程重点试验室基金项目(SZ-200901)
