Degradation of the nonylphenol aqueous solution by strong ionization discharge: evaluation of degradation mechanism and the water toxicity of zebrafish

被引：6
作者：
Yang, Liu [1 ]
Yi, Rongjie [1 ]
Yi, Chengwu [1 ]
Yu, Haijun [1 ]
Zhang, Jianan [1 ]
Nawaz, Muhammad Imran [2 ]
机构：
[1] Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212013, Jiangsu, Peoples R China
[2] Univ Engn & Technol, Dept Environm Engn, Taxila 47080, Pakistan
来源：
WATER SCIENCE AND TECHNOLOGY | 2022年 / 86卷 / 02期
关键词：
degradation mechanism; nonylphenol; strong ionization dielectric barrier discharge; zebrafish toxicity; ADVANCED OXIDATION PROCESSES; WASTE-WATER; REMOVAL; NEUROTOXICITY; KINETICS; BEHAVIOR; PLASMA; FATE;
D O I：
10.2166/wst.2022.175
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Nonylphenol (NP) is a typical environmental endogenous disrupter with low concentration and high toxicity. This paper studied the mechanism of NP degradation in solution by strong ionization dielectric barrier discharge (SIDBD). Furthermore, the degradation performance of NP by SIDBD was tested by changing the equipment voltage, the initial concentration of NP in aqueous solution, pH, and inorganic ions. Degradation pathways of NP were detected by the high-performance liquid chromatography-mass spectrometer (LC-MS). The biological effects of NP degradation were assessed by detecting indicators of embryonic development in zebrafish (survival rate, fetal movement, heartbeat, the body length, behavior, deformity) and adult fish (sex differentiation, weight, ovarian testes pathological section analysis). The results showed when the input O-2 was 5 L/min and the voltage was 3.2 kV, the degradation efficiency of NP can reach 99.0% after 60 minutes of experiment. Equipment voltage, initial concentration of NP in solution, pH, inorganic ions and other factors can influence the degradation efficiency of NP by DBD. At the higher concentration of NP, the greater influence on embryonic development in zebrafish was noticed. While the effects of NP on zebrafish sex differentiation were not obvious, but it showed significant male weight inhibition and decreased in sperm number.
引用
收藏
页码：227 / 243
页数：17
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