Application of a 2 k–p Fractional Experimental Design in Coagulation-Flocculation Processes in the Treatment of Wastewater from a Slaughterhouse

Javier Carpintero (), Jennifer Villa-Dominguez, María José Tavera-Quiroz, Humberto Carlos Tavera-Quiroz, Bartosz Kaźmierczak, Jonathan Fábregas-Villegas and Fausto A. Canales
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Javier Carpintero: Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, Barranquilla 080002, Colombia
Jennifer Villa-Dominguez: Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, Barranquilla 080002, Colombia
María José Tavera-Quiroz: Department of Agroindustrial Engineering, Faculty of Engineering, DESINPA, Universidad de Sucre, Cra. 28 #5-267, Puerta Roja, Sincelejo 700001, Colombia
Humberto Carlos Tavera-Quiroz: Departamento de Ingeniería Ambiental, Universidad de Córdoba, Cra. 6 #No. 77-305, Montería 230002, Colombia
Bartosz Kaźmierczak: Department of Water Supply and Sewerage Systems, Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
Jonathan Fábregas-Villegas: Grupo Interdisciplinario de Investigación en Mineralurgia, Energía y Medio Ambiente (GIIMA), Faculty of Engineering, Universidad Autónoma del Caribe, Barranquilla 080020, Colombia
Fausto A. Canales: Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, Barranquilla 080002, Colombia

Sustainability, 2022, vol. 14, issue 16, 1-14

Abstract: Determining the optimal dose of coagulant required to perform flocculation is critical in most water treatment plants’ planning and operation. This study implemented a 2 k–p fractional factorial design of experiments to identify the factors influencing the color decrease of wastewater from a slaughterhouse. The variables assessed were the velocity gradient, residence time, primary coagulant dosage, chlorine dosage, and coagulation adjuvant dosage. The results indicate that the primary coagulant dose and the velocity gradient significantly affect the samples’ color and that the other factors can be run at a low technical-economic level to start up the water treatment plant. The fractional factorial design allowed reducing the number of experimental points without affecting the minimum information required to identify which factors are significant in reducing the color of a wastewater sample.

Keywords: coagulation; coagulation adjuvant; residence time; design of experiments; chlorination; color (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:16:p:10402-:d:894090

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