Removal of benzotriazole by Photo-Fenton like process using nano zero-valent iron: response surface methodology with a Box-Behnken design-Reference-Cited by-同舟云学术

Removal of benzotriazole by Photo-Fenton like process using nano zero-valent iron: response surface methodology with a Box-Behnken design

Published:2017-03-28 Issue:1 Volume:19 Page:104-112
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Ahmadi Mehdi¹²,Rahmani Kurosh³,Rahmani Ayat⁴,Rahmani Hasan¹²⁵

Affiliation:

1. Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran (Islamic Republic of)

2. Ahvaz Jundishapur University of Medical Sciences, Department of Environmental Health Engineering, School of Health , Ahvaz , Iran (Islamic Republic of)

3. Ardabil University of Medical Sciences, Department of Environmental Health Engineering, School of Health , Ardabil , Iran (Islamic Republic of)

4. Semnan University of Medical Sciences, Department of Environmental Health Engineering, School of Health , Semnan , Iran (Islamic Republic of)

5. Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan , Ahvaz , Iran (Islamic Republic of)

Abstract

Abstract In this paper, the removal of benzotriazole (BTA) was investigated by a Photo-Fenton process using nano zero valent iron (NZVI) and optimization by response surface methodology based on Box-Behnken method. Effect of operating parameters affecting removal efficiency such as H2O2, NZVI, and BTA concentrations as well as pH was studied. All the experiments were performed in the presence of ultraviolet radiation. Predicted levels and BTA removal were found to be in good agreement with the experimental levels (R2 = 0. 9500). The optimal parameters were determined at 60 min reaction time, 15 mg L-1 BTA, 0.10 g L-1 NZVI, and 1.5 mmol L-1 H2O2 for Photo-Fenton-like reaction. NZVI was characterized using X-ray diffraction (XRD), transmission electron microscope (TEM) images, and scanning electron microscope (SEM) analysis.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

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