摘要
讨论UV/O3/H2O2协同体系对兰纳素橙OR的光降解情况,与O3、UV、O3/UV的处理效果进行了比较,研究了pH值、O3、H2O2对兰纳素橙OR光降解的影响.结果表明:UV/O3/H2O2协同体系可以很好地降解水中的兰纳素橙OR,其降解速率大于O3/UV、O3、UV体系;在弱碱性的条件下,兰纳素橙OR在这一体系中的光降解速率最快;强酸性条件下,电导率上升最高;兰纳素橙OR光降解速率随O3流量的增加而增加,电导率在O3流量为20 L/h时出现峰值;在一定的H2O2质量浓度范围内,兰纳素橙OR的光降解速率与电导率提高程度随H2O2质量浓度的升高而增大,但过高时,兰纳素橙OR的光降解速率会减慢,电导率提高程度减弱;UV是影响电导率变化的主要因素,其随UV强度的增加而增加.
The photodegradation of Lannasol OR in UV/O3/H2O2 combined system is studied, compared with the degradation effect in O3 ,UV and O3/UV. The effects of pH value, O3 and H2O2 on the photodegradation of Lannaso OR are researched. The results show that Lannasol OR is more effectively degraded by UV/O3/H2O2 combined system than by UV, O3 and O3/UV methods; the Lannasol OR displayed faster degrading rate in low alkali medium than in other medium and higher conductance rate in high acid medium; the degrading rate of Lannasol OR increases with increasing concentration of O3, but the conductance rate of Lannasol OR has a maximum when the flux of O3 is 2O L/h; the degrading rate and conductance rate of Lannasol OR increases with increasing concentration of H2O2, but the effect decreases at the high level of H2O2 ; The intensity of UV, which is the primary factor to influence Lannasol OR mineralization, presentes positive effect to conductance of Lannasol OR.
出处
《天津工业大学学报》
CAS
2007年第3期61-65,共5页
Journal of Tiangong University
基金
教育部科学技术研究重点项目(02009)
留学回国人员科研启动基金
作者简介
韩冰（1978-），男，硕士研究生；
田俊莹（1968-），女，副教授，导师，E-mail：tjy6818@163．com
