摘要
针对水中存在盐酸四环素(TC)带来的问题,研究Fenton氧化法中H_(2)O_(2)投加量、FeSO_(2)·7H_(2)O投加量、初始pH、反应时间和初始TC浓度对TC和COD_(Cr)去除效果的影响,以及电絮凝法中电流强度、极板距离、电解时间和初始TC浓度对TC和COD_(Cr)去除效果的影响。结果表明:处理100 mg/L的TC废水时,Fenton氧化法最佳操作条件是H_(2)O_(2)投加量为2.0 mL/L、FeSO_(2)·7H_(2)O投加量为4.634 g/L、初始pH值为3.0、反应时间为20 min,此时TC、COD_(Cr)去除率分别为91.67%、75.00%;电絮凝法最佳操作条件是电流强度为0.20 A、板板间距为34 mm、反应时间为20 min,此时铁电极的TC、COD_(Cr)去除率分别为88.57%、75.00%,铝电极的TC、COD_(Cr)去除率分别为95.32%、80.00%。铝电极处理TC效率高于铁电极和Fenton氧化法的处理效率。
In view of the problems caused by the presence of tetracycline hydrochloride(TC) in water, the effects of H_(2)O_(2)dosage, FeSO_(2)·7 H_(2)O dosage, initial pH value, reaction time and initial concentration of TC in Fenton oxidation process on removal efficiency of TC and COD_(Cr)were studied. And the influence of current intensity, inter-electrode distance, electrolysis time and initial concentration of TC in electroflocculation process on the removal effect of TC and COD_(Cr)were studied. Results showed that the removal rates of TC and COD_(Cr)by Fenton oxidation process were 91.67% and 75.00% respectively, under optimal operating condition of H_(2)O_(2)dosage of 2.0 mL/L, FeSO_(2)·7 H_(2)O dosage of 4.634 g/L, initial pH value of 3.0, reaction time of 20 min and initial concentration of TC of 100 mg/L. The removal rates of TC and COD_(Cr)by iron electrode were 88.57% and 75.00%, respectively, and that by aluminum electrode were 95.32% and 80.00%, respectively, under optimal operating condition of the electroflocculation process of current intensity of 0.20 A, inter-electrode distance of 34 mm, reaction time of 20 min and initial concentration of TC of 100 mg/L. The efficiency of TC treatment with aluminum electrode is higher than that of iron electrode and Fenton oxidation process.
作者
杨晓婷
邱海燕
谯梦丹
石宇
徐波
兰贵红
高虹
YANG Xiaoting;QIU Haiyan;QIAO Mengdan;SHI Yu;XU Bo;LAN Guihong;GAO Hong(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu610500,China;Research Institute of Oil&Gas Engineering,Jilin Oilfield Branch,Songyuan138000,China)
出处
《净水技术》
CAS
2022年第3期90-99,159,共11页
Water Purification Technology
基金
典型工业聚集区废水稳定达标技术集成研发与示范(2018SZ0313)。
关键词
盐酸四环素
FENTON氧化法
电絮凝
氧化
去除
tetracycline hydrochloride(TC)
Fenton oxidation
electroflocculation(EF)
oxidation
removal
