Degradation effect and kinetics of ibuprofen in water by UV/O3 advanced oxidation

doi:10.11894/iwt.2019-0904

Industrial Water Treatment ›› 2020, Vol. 40 ›› Issue (9): 40-43. doi: 10.11894/iwt.2019-0904

• Research and Experiment • Previous Articles Next Articles

Degradation effect and kinetics of ibuprofen in water by UV/O₃ advanced oxidation

Yibo Wang^1,²(),Shaopo Wang^1,²,Zhe Wang³,Ruifei Zhou^1,²,Jing Chang^1,^2,*()

1. Tianjin Chengjian University, Tianjin 300384, China
2. Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China
3. Tianjin University of Technology, Tianjin 300384, China

Received:2020-07-15 Online:2020-05-20 Published:2020-10-21
Contact: Jing Chang E-mail:1771736808@qq.com;changjinghit@163.com

UV/O₃高级氧化法对水中布洛芬降解效果及其动力学

王毅博^1,²(),王少坡^1,²,王哲³,周瑞飞^1,²,常晶^1,^2,*()

1. 天津城建大学, 天津 300384
2. 天津市水质科学与技术重点实验室, 天津 300384
3. 天津理工大学, 天津 300384

通讯作者: 常晶 E-mail:1771736808@qq.com;changjinghit@163.com
作者简介:王毅博(1994-),硕士。电话:17302250339, E-mail:1771736808@qq.com
基金资助:
国家自然科学基金青年科学基金项目(51708388);国家自然科学基金项目(51608362)

Abstract

Abstract:

The degradation efficiency of ibuprofen in water treated by ultraviolet/ozone(UV/O₃) advanced oxidation process was investigated, and the results were compared with those obtained from individual UV and O₃ process. The results showed that UV/O₃ had significant degradation for ibuprofen in pure water, and its efficiency increased by 24% and 85% respectively compared with O₃ and UV process under 10 min reaction conditions. Among these three treatment methods, the increase of the initial concentration of ibuprofen inhibited its degradation, and the degradation of ibuprofen conformed to the pseudo first-order kinetic equation. The alkaline condition was more favorable for the degradation of ibuprofen by UV/O₃ and O₃, UV/O₃ could mineralize ibuprofen over 80% within 130 min. The kinetic analysis found that the mineralization of ibuprofen by UV/O₃ conformed to the pseudo zero-order kinetic equation.

Key words: UV/O₃, ibuprofen, degradation effect, kinetic

摘要：

研究紫外/臭氧（UV/O₃）高级氧化法降解水中布洛芬的效果，并与单独UV法、O₃法的实验结果进行对比分析。结果表明：在纯水中，UV/O₃法降解布洛芬的效果显著，10 min反应条件下，分别比O₃法和UV法降解效率提升近24%和85%。3种处理方法中，布洛芬初始浓度的升高均对其降解有抑制作用，且降解过程均符合伪一级动力学方程。碱性环境更利于UV/O₃和O₃对布洛芬的降解，UV/O₃可以将布洛芬在130 min内矿化超过80%，动力学分析发现，UV/O₃矿化布洛芬的过程符合伪零级动力学方程。

关键词: UV/O₃, 布洛芬, 降解效果, 动力学

CLC Number:

X703.1

Yibo Wang,Shaopo Wang,Zhe Wang,Ruifei Zhou,Jing Chang. Degradation effect and kinetics of ibuprofen in water by UV/O₃ advanced oxidation[J]. Industrial Water Treatment, 2020, 40(9): 40-43.

王毅博,王少坡,王哲,周瑞飞,常晶. UV/O₃高级氧化法对水中布洛芬降解效果及其动力学[J]. 工业水处理, 2020, 40(9): 40-43.

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URL: https://www.iwt.cn/EN/10.11894/iwt.2019-0904

https://www.iwt.cn/EN/Y2020/V40/I9/40

Figures/Tables 7

References 8

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	质量浓度/（mg·L^-1）	拟合伪一级反应动力学方程	R²
单独UV	0.41	-ln（C/C₀）=0.021 8t+0.112 4	0.925 6
	0.82	-ln（C/C₀）=0.018 0t+0.127 5	0.889 1
	1.64	-ln（C/C₀）=0.014 7t+0.049 0	0.934 3
	3.28	-ln（C/C₀）=0.011 9t+0.037 2	0.970 6
单独O₃	0.41	-ln（C/C₀）=0.205 8t+0.357 6	0.971 4
	0.82	-ln（C/C₀）=0.118 5t+0.324 1	0.968 8
	1.64	-ln（C/C₀）=0.072 9t+0.247 7	0.979 5
	3.28	-ln（C/C₀）=0.069 6t+0.268 6	0.979 2
UV/O₃	0.41	-ln（C/C₀）=1.061 5t+0.083 4	0.990 1
	0.82	-ln（C/C₀）=0.621 4t+0.242 5	0.983 9
	1.62	-ln（C/C₀）=0.485 8t+0.235 9	0.975 3
	3.28	-ln（C/C₀）=0.413 3t+0.133 9	0.996 9

	质量浓度/（mg·L^-1）	拟合伪一级反应动力学方程	R²
单独UV	0.41	-ln（C/C₀）=0.021 8t+0.112 4	0.925 6
	0.82	-ln（C/C₀）=0.018 0t+0.127 5	0.889 1
	1.64	-ln（C/C₀）=0.014 7t+0.049 0	0.934 3
	3.28	-ln（C/C₀）=0.011 9t+0.037 2	0.970 6
单独O₃	0.41	-ln（C/C₀）=0.205 8t+0.357 6	0.971 4
	0.82	-ln（C/C₀）=0.118 5t+0.324 1	0.968 8
	1.64	-ln（C/C₀）=0.072 9t+0.247 7	0.979 5
	3.28	-ln（C/C₀）=0.069 6t+0.268 6	0.979 2
UV/O₃	0.41	-ln（C/C₀）=1.061 5t+0.083 4	0.990 1
	0.82	-ln（C/C₀）=0.621 4t+0.242 5	0.983 9
	1.62	-ln（C/C₀）=0.485 8t+0.235 9	0.975 3
	3.28	-ln（C/C₀）=0.413 3t+0.133 9	0.996 9

	pH	伪一级反应动力学方程	R²
单独O₃	4	-ln（C/C₀）=0.054 3t+0.403 6	0.881 4
	6	-ln（C/C₀）=0.074 6t+0.251 8	0.980 3
	8	-ln（C/C₀）=0.173 1t+0.118 3	0.984 5
	10	-ln（C/C₀）=0.190 7t+0.157 7	0.946 7
UV/O₃	4	-ln（C/C₀）=0.617 3t+0.430 4	0.949 2
	6	-ln（C/C₀）=0.566 6t+0.219 7	0.982 6
	8	-ln（C/C₀）=0.954 3t+0.073 5	0.976 3
	10	-ln（C/C₀）=0.777 8t+0.156 5	0.993 7

	pH	伪一级反应动力学方程	R²
单独O₃	4	-ln（C/C₀）=0.054 3t+0.403 6	0.881 4
	6	-ln（C/C₀）=0.074 6t+0.251 8	0.980 3
	8	-ln（C/C₀）=0.173 1t+0.118 3	0.984 5
	10	-ln（C/C₀）=0.190 7t+0.157 7	0.946 7
UV/O₃	4	-ln（C/C₀）=0.617 3t+0.430 4	0.949 2
	6	-ln（C/C₀）=0.566 6t+0.219 7	0.982 6
	8	-ln（C/C₀）=0.954 3t+0.073 5	0.976 3
	10	-ln（C/C₀）=0.777 8t+0.156 5	0.993 7

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