Solar light and ultrasound-assisted rapid Fenton's oxidation of 2,4,6-trichlorophenol: comparison, optimisation, and mineralisation

被引：5

作者：

Yadav, Shivani ^{[1
]}

Kumar, Sunil ^{[2
]}

Haritash, Anil Kumar ^{[1
]}

机构：

[1] Delhi Technol Univ, Dept Environm Engn, Environm Microbiol & Bioremediat Lab, Delhi 110042, India

[2] Solaris Chemtech Ind, Bhuj 370001, Gujarat, India

来源：

RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI | 2023年 / 34卷 / 04期

关键词：

Wastewater; Trichlorophenol; Photo-Fenton; Fenton-integrated processes; AOPs;

D O I：

10.1007/s12210-023-01192-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chlorophenols are the persistent organic contaminants released in the aquatic bodies by industrial manufacturing units. Treatment of phenolic wastewater is an arduous process for conventional treatment methods because of their high stability and complexity. The present study deals with degradation of 2,4,6-Trichlorophenol, using Photo-Fenton's process. The study commences the optimisation and validation of different regulating parameters like pH, oxidant (H2O2), and Fe2+ ions at variable concentration in batch mode. At pH 3.0, Fe2+ 0.5 mM, and H2O2 (10.0 mM), complete degradation of trichlorophenol was observed within 6 min of reaction time. The mineralisation of the model pollutant was studied over TOC analyser and HPLC. Response Surface Plots were drawn to define the interactive relationship between process governing Fenton's process. Under optimized conditions, different Fenton-integrated processes, such as Solar-Fenton, Sono-Fenton, and Sono-Photo-Fenton (UV365), were compared for degradation of TCP. Among all the processes, Solar-Fenton resulted in rapid and complete degradation of TCP within 5 min. The mineralisation efficiency of Fenton's process, Solar-Fenton, Sono-Fenton, Sono-Photo-Fenton, and Photo-Fenton's processes were 50%, 98%, 90%, 75%, and 50%, respectively. The results indicated Solar-assisted Fenton as potential and efficient approach toward degradation of Trichlorophenol.

引用

页码：1197 / 1207

页数：11

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