摘要
采用接触辉光放电等离子体(CGDE)降解水中氧四环素,考察了不同条件(放电电压、初始浓度、电解质浓度、初始p H值)对氧四环素(OTC)降解率的影响.研究结果表明,放电电压500 V、OTC浓度60 mg/L、电解质为3 g/L Na_2SO_4、初始p H为3.0时,放电60 min,OTC降解率达98.12%.Fe^(2+)为4.0 mg/L时,CGDE放电5min,OTC降解率高达98.48%.CGDE体系中添加亚铁盐能有效加快OTC的降解过程.
The degradation of oxytetracycline（OTC） in aqueous solution induced by contact glow discharge electrolysis（CGDE） was investigated. The effect of applied voltage, initial OTC concentration, initial electrolyte concentration and initial p H on OTC degradation rate was studied. Under the optimum conditions（500 V, 60 mg/L OTC, 3 g/L Na_2SO_4, p H=3.0）, after 60 min CGDE treatment, the degradation rate of OTC was 98.12%. In addition, the effect of Fe^（2＋）on OTC degradation was also investigated. When the concentration of Fe^（2 ＋）was 4.0 mg/L, after 5 min CGDE treatment, the degradation rate of OTC reached up to 98.48%, which demonstrated that CGDE combined with Fe^（2 ＋）can efficiently enhance the OTC degradation.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2015年第5期13-20,共8页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
Supported by NNSF(201204039)and FRFCU(65011601)
关键词
辉光放电等离子体
氧四环素
降解
contact glow discharge electrolysis（CGDE）
oxytetracycline
degradation
