摘要
以钛涂钌铱电极(RuO_(2)-IrO_(2)/Ti)为阳极,石墨为阴极,活性炭为粒子电极构建三维电极电Fenton体系,研究三维电极电Fenton处理阿奇霉素制药废水的影响因素,系统性考察活性炭粒子电极类型及投加量对处理效果的影响,并通过改变极板间距、pH、曝气强度、电解电压、反应时间等因素,确定最佳反应条件。进一步通过正交实验比较各因素影响程度大小,优化三维电极电Fenton处理阿奇霉素制药废水实验条件。结果表明,以3 mm柱碳作为粒子电极,当其投加质量浓度为100 g/L时,最佳工艺条件为pH=3、电解电压15 V、曝气强度1.0 L/min、极板间距7 cm、反应时间2 h。此条件下,废水COD平均去除率为72.28%,B/C由初始的0.086上升至0.312,处理效果达最优。此外,各因素对于三维电极电Fenton处理阿奇霉素制药废水效果的影响程度为pH>曝气强度>电解电压>反应时间>极板间距。
A three-dimensional electrode electro-Fenton system was constructed using titanium coated ruthenium iridium electrode(RuO_(2)-IrO_(2)/Ti)as the anode,graphite as the cathode,and activated carbon as the particle elec-trode.The influencing factors of three-dimensional electrode electro-Fenton treatment of azithromycin pharmaceuti-cal wastewater were studied,and the effects of activated carbon particle electrode type and dosage on treatment effi-ciency were systematically investigated.The optimal reaction conditions were determined by changing factors such as electrode spacing,pH,aeration intensity,electrolysis voltage,and reaction time.The results showed that the opti-mal process conditions were pH=3,electrolysis voltage of 15 V,aeration intensity of 1.0 L/min,electrode spacing of 7 cm,and the reaction time of 2 hours as the particle electrode was 3 mm column carbon,with mass concentration of 100 g/L.Under these conditions,the average COD removal rate of wastewater was 72.28%,and the B/C increased from the initial 0.086 to 0.312,which resulted in the optimal treatment effect.In addition,the influence of each fac-tor on the treatment of azithromycin pharmaceutical wastewater by three-dimensional electrode electro-Fenton was pH>aeration intensity>electrolysis voltage>reaction time>electrode spacing.
作者
傅翔宇
李亚峰
FU Xiangyu;LI Yafeng(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168)
出处
《工业水处理》
CAS
CSCD
北大核心
2024年第6期158-164,共7页
Industrial Water Treatment
关键词
阿奇霉素制药废水
三维电极
电FENTON
高级氧化
azithromycin pharmaceutical wastewater
three-dimensional electrode
eleetro-Fenton
advanced oxidation
作者简介
傅翔宇(1993-),博士研究生,助理研究员。E-mail:sunshine0531fxy@163.com。
