Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach

The aim of this research work is the optimization of the coagulation/flocculation process in the treatment of surface water for maximum dissolved organic matter (DOM) removal using response surface methodology (RSM). For this purpose, several jar test experiments were performed in order to identify...

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Autores principales:	Sami Khettaf, Imen Khouni, Ghofrane Louhichi, Ahmed Ghrabi, Latifa Bousselmi, Kamel-Eddine Bouhidel, Mohammed Bouhelassa
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	box–behnken design coagulation/flocculation treatment dissolved organic matter removal optimization response surface methodology surface water Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/e505672dc0cc4a549322b356a50e5439
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spelling	oai:doaj.org-article:e505672dc0cc4a549322b356a50e54392021-11-06T10:08:36ZOptimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach1606-97491607-079810.2166/ws.2021.070https://doaj.org/article/e505672dc0cc4a549322b356a50e54392021-09-01T00:00:00Zhttp://ws.iwaponline.com/content/21/6/3042https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The aim of this research work is the optimization of the coagulation/flocculation process in the treatment of surface water for maximum dissolved organic matter (DOM) removal using response surface methodology (RSM). For this purpose, several jar test experiments were performed in order to identify the most influencing factors. Afterwards, RSM was done to investigate the effects and the interactions of three chosen variables (coagulant concentration, flocculant concentration, and initial pH), whereas the responses were the DOM removal in terms of chemical oxygen demand (COD), in terms of absorbance at the wavelength 254 nm (UV-254), and the final pH. The optimal conditions were as follows: 133 mg/L of coagulant, 60 mg/L of flocculant and an initial pH equal to 6.91. Under these conditions, the efficiency removals were 56% in terms of COD and 59% in terms of UV-254 with a final pH equal to 6.78. High variance coefficient R2 values, with 0.96 for the removal in terms of COD and 0.92 in terms of UV-254, confirm the reliability and the validity of the obtained model. HIGHLIGHTS Coagulation/flocculation is a very efficient process for removing dissolved organic matter from surface waters.; Response surface methodology approach is a very effective and powerful tool for optimizing the coagulation/flocculation process.; Optimization of the coagulation/flocculation process reduces the use of chemicals and protects the environment.;Sami KhettafImen KhouniGhofrane LouhichiAhmed GhrabiLatifa BousselmiKamel-Eddine BouhidelMohammed BouhelassaIWA Publishingarticlebox–behnken designcoagulation/flocculation treatmentdissolved organic matter removaloptimizationresponse surface methodologysurface waterWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 6, Pp 3042-3056 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	box–behnken design coagulation/flocculation treatment dissolved organic matter removal optimization response surface methodology surface water Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	box–behnken design coagulation/flocculation treatment dissolved organic matter removal optimization response surface methodology surface water Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Sami Khettaf Imen Khouni Ghofrane Louhichi Ahmed Ghrabi Latifa Bousselmi Kamel-Eddine Bouhidel Mohammed Bouhelassa Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach
description	The aim of this research work is the optimization of the coagulation/flocculation process in the treatment of surface water for maximum dissolved organic matter (DOM) removal using response surface methodology (RSM). For this purpose, several jar test experiments were performed in order to identify the most influencing factors. Afterwards, RSM was done to investigate the effects and the interactions of three chosen variables (coagulant concentration, flocculant concentration, and initial pH), whereas the responses were the DOM removal in terms of chemical oxygen demand (COD), in terms of absorbance at the wavelength 254 nm (UV-254), and the final pH. The optimal conditions were as follows: 133 mg/L of coagulant, 60 mg/L of flocculant and an initial pH equal to 6.91. Under these conditions, the efficiency removals were 56% in terms of COD and 59% in terms of UV-254 with a final pH equal to 6.78. High variance coefficient R2 values, with 0.96 for the removal in terms of COD and 0.92 in terms of UV-254, confirm the reliability and the validity of the obtained model. HIGHLIGHTS Coagulation/flocculation is a very efficient process for removing dissolved organic matter from surface waters.; Response surface methodology approach is a very effective and powerful tool for optimizing the coagulation/flocculation process.; Optimization of the coagulation/flocculation process reduces the use of chemicals and protects the environment.;
format	article
author	Sami Khettaf Imen Khouni Ghofrane Louhichi Ahmed Ghrabi Latifa Bousselmi Kamel-Eddine Bouhidel Mohammed Bouhelassa
author_facet	Sami Khettaf Imen Khouni Ghofrane Louhichi Ahmed Ghrabi Latifa Bousselmi Kamel-Eddine Bouhidel Mohammed Bouhelassa
author_sort	Sami Khettaf
title	Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach
title_short	Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach
title_full	Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach
title_fullStr	Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach
title_full_unstemmed	Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach
title_sort	optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using rsm approach
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/e505672dc0cc4a549322b356a50e5439
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Optimization of coagulation–flocculation process in the treatment of surface water for a maximum dissolved organic matter removal using RSM approach

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