电-生物耦合技术对偶氮染料的去除研究

酸性大红GR是一种较难生物降解的偶氮染料，采用一种电场和生物耦合的新型技术处理酸性大红GR模拟废水，并与单纯电化学法和好氧生物法进行试验对照。结果表明：反应6 h后，电化学法、好氧生物法、电-生物耦合技术对酸性大红GR的去除率分别达到15.7%、25.8%和71.2%，电-生物耦合技术能明显提高酸性大红GR的去除效果，起到强化生物处理的作用。在15 mA微电流条件下电-生物技术能克服50 mg/L酸性大红GR对好氧生物处理的抑制作用，为高浓度难降解染料废水的生物强化处理提供了可能。

Research on removal of azo dye by bioelectrochemical technology

A novel process of bioelectrochemical technology was adopted to treat refractory acid red GR wastewater, compared with single electrochemical and aerobic biological treatment. The results showed that the removal rate of acid red GR reached 15.7%, 25.8% and 71.2%, respectively by the single electrochemical, aerobic biological and bioelectrochemical technology. The bioelectrochemical technology significantly improved the removal rate of acid red GR and strengthened biotreatment. Additionally, the novel technology could well deal with the initial concentration of 50 mg/L acid red GR which was a restricted concentration to aerobic biological treatment.The results suggested that high concentration dye wastewater can be treated by the electrolytic enhanced biotreatment technology.