Optimization of a Textile Effluent Treatment System and Evaluation of the Feasibility to Be Reused as Influents in Textile Dyeing Processes

Patricia López-Casaperalta, Fredy Nicolás Molina-Rodríguez, Fernando Fernandez-F, Jeanette Fabiola Díaz-Quintanilla, Jaime E. Barreda-Del-Carpio, Julio Cesar Bernabe-Ortiz and Jorge Alberto Aguilar-Pineda ()
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Patricia López-Casaperalta: Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n, Umacollo, Arequipa 04013, Peru
Fredy Nicolás Molina-Rodríguez: Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n, Umacollo, Arequipa 04013, Peru
Fernando Fernandez-F: Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n, Umacollo, Arequipa 04013, Peru
Jeanette Fabiola Díaz-Quintanilla: Departamento de Ingenierías de la Industria y el Ambiente, Universidad Católica San Pablo, Urb. Campiña Paisajista, s/n, Quinta Vivanco, Arequipa 04001, Peru
Jaime E. Barreda-Del-Carpio: Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n, Umacollo, Arequipa 04013, Peru
Julio Cesar Bernabe-Ortiz: Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n, Umacollo, Arequipa 04013, Peru
Jorge Alberto Aguilar-Pineda: Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n, Umacollo, Arequipa 04013, Peru

Sustainability, 2022, vol. 14, issue 23, 1-18

Abstract: Textile effluents derived from azo-reactive dyeing processes represent a severe problem for aquatic ecosystems and human health. The large amounts of water used in this process and the poor quality of the discharges urge the need to develop treatment systems that involve reusing treated water. In this research, we present the optimization of a feasible, simple, and efficient treatment system that improves the quality of the effluents from the cotton fabric dyeing process. Through the characterization of the influents and effluents, we have identified seven parameters that have allowed the optimization of the treatment. Analytical techniques, such as nephelometry, EDTA, gravimetry, and BOD5, among others, and specialized equipment, such as the spectrophotometer, have been used for these purposes. The results showed that using combustion gases in the neutralization stage and new flocculant-coagulant reagents improved parameters, such as pH, total solids, hardness, and conductivity. The quality of the effluents thus obtained allowed their reuse only in the stages before the dyeing bath without affecting the final quality of the cotton fabrics in dark colors. This effort implies savings in water and supplies, and opens the door to future research on the treatment of textile effluents that help improve the environmental conditions of our region.

Keywords: textile effluent treatment; dyeing process; azo-reactive dyes; effluent reuse (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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