Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design

In this study, the electro-Fenton (EF) method was applied to remove total organic carbon (TOC) from the pesticide production wastewater containing tricyclazole (TC). Statistical Taguchi method was used to optimize the treatment performance. Analysis of variance (ANOVA) indicated that the polynomial...

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Autores principales:	Thanh Luu Pham, Faten Boujelbane, Hiep Nghia Bui, Hieu Trung Nguyen, Xuan-Thanh Bui, Duy Ngoc Nguyen, Ha Thai Tran Nguyen, Hao Anh Phan, Huong Thi Giang Duong, Ha Manh Bui
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	d. magna electro-fenton pesticide taguchi method tricylazole Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/4f7a7ebe7f864562a55776174f286c61
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id	oai:doaj.org-article:4f7a7ebe7f864562a55776174f286c61
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spelling	oai:doaj.org-article:4f7a7ebe7f864562a55776174f286c612021-12-02T07:41:02ZPesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design0273-12231996-973210.2166/wst.2021.372https://doaj.org/article/4f7a7ebe7f864562a55776174f286c612021-11-01T00:00:00Zhttp://wst.iwaponline.com/content/84/10-11/3155https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this study, the electro-Fenton (EF) method was applied to remove total organic carbon (TOC) from the pesticide production wastewater containing tricyclazole (TC). Statistical Taguchi method was used to optimize the treatment performance. Analysis of variance (ANOVA) indicated that the polynomial regression model fitted experimental data with R2 of 0.969. The optimal conditions for eliminating 75.4% TOC and 93.7% TC were 0.2 mM of Fe2+, 990 mg/L of Na2SO4, 180 min of reaction time at pH 3 with 2.22 mA/cm2 of current density. The removal of TC present in the wastewater followed the first-order reaction kinetic model (R2 = 0.993); while that was the second-order kinetic model in the case of the TOC removal (R2 = 0.903). In addition, the experimental results and theory approaches (density functional theory and natural bond orbital calculations) also showed the C-N bond breaking and nitrate ions cleavage to ammonia. Acute toxicity of the pesticide wastewater after treatment (PWAT) on microcrustaceans showed that the treated wastewater still exhibited high toxicity against D. magna, with LC50 values of 3.84%, 2.68%, 2.05%, and 1.78% at 24 h, 48 h, 72 h, and 96 h, respectively. HIGHLIGHTS Electro-Fenton (EF) was employed to remove TOC and tricylazole from real pesticide wastewater.; Taguchi approach (L27) had been developed on five factors of EF on TOC removal.; ANOVA showed a well-fitted polynomial regression model with R2 of 0.969.; The nitrogen minerals reached 25.3 as explained by DFT/NBO calculations.; Cost analysis, kinetic reaction of EF process and bioassay toxicological test also evaluated.;Thanh Luu PhamFaten BoujelbaneHiep Nghia BuiHieu Trung NguyenXuan-Thanh BuiDuy Ngoc NguyenHa Thai Tran NguyenHao Anh PhanHuong Thi Giang DuongHa Manh BuiIWA Publishingarticled. magnaelectro-fentonpesticidetaguchi methodtricylazoleEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 10-11, Pp 3155-3171 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	d. magna electro-fenton pesticide taguchi method tricylazole Environmental technology. Sanitary engineering TD1-1066
spellingShingle	d. magna electro-fenton pesticide taguchi method tricylazole Environmental technology. Sanitary engineering TD1-1066 Thanh Luu Pham Faten Boujelbane Hiep Nghia Bui Hieu Trung Nguyen Xuan-Thanh Bui Duy Ngoc Nguyen Ha Thai Tran Nguyen Hao Anh Phan Huong Thi Giang Duong Ha Manh Bui Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design
description	In this study, the electro-Fenton (EF) method was applied to remove total organic carbon (TOC) from the pesticide production wastewater containing tricyclazole (TC). Statistical Taguchi method was used to optimize the treatment performance. Analysis of variance (ANOVA) indicated that the polynomial regression model fitted experimental data with R2 of 0.969. The optimal conditions for eliminating 75.4% TOC and 93.7% TC were 0.2 mM of Fe2+, 990 mg/L of Na2SO4, 180 min of reaction time at pH 3 with 2.22 mA/cm2 of current density. The removal of TC present in the wastewater followed the first-order reaction kinetic model (R2 = 0.993); while that was the second-order kinetic model in the case of the TOC removal (R2 = 0.903). In addition, the experimental results and theory approaches (density functional theory and natural bond orbital calculations) also showed the C-N bond breaking and nitrate ions cleavage to ammonia. Acute toxicity of the pesticide wastewater after treatment (PWAT) on microcrustaceans showed that the treated wastewater still exhibited high toxicity against D. magna, with LC50 values of 3.84%, 2.68%, 2.05%, and 1.78% at 24 h, 48 h, 72 h, and 96 h, respectively. HIGHLIGHTS Electro-Fenton (EF) was employed to remove TOC and tricylazole from real pesticide wastewater.; Taguchi approach (L27) had been developed on five factors of EF on TOC removal.; ANOVA showed a well-fitted polynomial regression model with R2 of 0.969.; The nitrogen minerals reached 25.3 as explained by DFT/NBO calculations.; Cost analysis, kinetic reaction of EF process and bioassay toxicological test also evaluated.;
format	article
author	Thanh Luu Pham Faten Boujelbane Hiep Nghia Bui Hieu Trung Nguyen Xuan-Thanh Bui Duy Ngoc Nguyen Ha Thai Tran Nguyen Hao Anh Phan Huong Thi Giang Duong Ha Manh Bui
author_facet	Thanh Luu Pham Faten Boujelbane Hiep Nghia Bui Hieu Trung Nguyen Xuan-Thanh Bui Duy Ngoc Nguyen Ha Thai Tran Nguyen Hao Anh Phan Huong Thi Giang Duong Ha Manh Bui
author_sort	Thanh Luu Pham
title	Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design
title_short	Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design
title_full	Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design
title_fullStr	Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design
title_full_unstemmed	Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design
title_sort	pesticide production wastewater treatment by electro-fenton using taguchi experimental design
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/4f7a7ebe7f864562a55776174f286c61
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Pesticide production wastewater treatment by Electro-Fenton using Taguchi experimental design

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