Degradation of 2,6-dichloro-1,4-benzoquinone by advanced oxidation with UV, H2O2, and O3: parameter optimization and model building

被引：3

作者：

Pan, Zhangbin ^{[1
,2
]}

Zhu, Xiaokang ^{[2
,3
]}

Li, Guifang ^{[2
]}

Wang, Yongqiang ^{[2
,3
]}

Li, Mei ^{[3
]}

Sun, Shaohua ^{[2
]}

Jia, Ruibao ^{[2
]}

Hou, Li'an ^{[1
,2
,4
]}

机构：

[1] China Univ Petr East China, Coll Chem Engn, Qingdao 266580, Peoples R China

[2] Shandong Prov Water Supply & Drainage Monitoring, Jinan 250101, Peoples R China

[3] Shandong Jianzhu Univ, Sch Municipal & Environm Engn, Jinan 250101, Peoples R China

[4] Xian High Tech Inst, Xian 710025, Peoples R China

来源：

AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY | 2021年 / 70卷 / 08期

关键词：

2; 6-dichloro-1; 4-benzoquinone; Box-Behnken design; degradation pathway; drinking water; halogenated benzoquinone; DISINFECTION BY-PRODUCTS; SULFATE RADICALS; SURFACE; DESIGN; WATER;

D O I：

10.2166/aqua.2021.026

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Halobenzoquinones are disinfection by-products with cytotoxicity, carcinogenicity, and genotoxicity. In this study, we investigated the removal of the HBQ 2,6-dichloro-1,4-benzoquinone (DCBQ) from water using advanced oxidation processes. The removal of DCBQ from water using UV, H2O2, and O-3 advanced oxidation processes individually was not ideal with removal rates of 36.1% with a UV dose of 180 mJ/cm(2), 32.0% with 2 mg/L H2O2, and 57.9% with 2 mg/L O-3. Next, we investigated using the combined UV/H2O2/O-3 advanced oxidation process to treat water containing DCBQ. A Box-Behnken design was used to optimize the parameters of the UV/H2O2/O-3 process, which gave the following optimum DCBQ removal conditions: UV dose of 180 mJ/cm(2), O-3 concentration of 0.51 mg/L, and H2O2 concentration of 1.76 mg/L. The DCBQ removal rate under the optimum conditions was 94.3%. We also found that lower humic acid concentrations promoted DCBQ degradation, while higher humic acid concentrations inhibited DCBQ degradation.

引用

页码：1159 / 1169

页数：11

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