Degradation of Dyes in Real Textile Industry Wastewater Samples by Fenton Process
Abstract
This research proposes a solution to the problem of industrial safety and the improvement of environmental processes in the textile industry through the degradation of dyes from its processes using the Fenton reaction. This advanced oxidation technology makes it possible to reduce the possible environmental impacts caused by the organic matter generated in industrial activity. Sampling was conducted under real operating conditions in the homogenization tank of the Industrias Printex SAS wastewater treatment plant. Advanced oxidation was carried out applying the Fenton process using iron from ferrous sulfate heptahydrate as a catalyst and hydrogen peroxide at different concentrations in a 6-post flocculator. Among the results obtained, an optimal dose of 571 ppm of iron and 38 ppm of hydrogen peroxide was found through statistical analysis with the STATGRAPHICS program using the 2k factorial design and constructing response surfaces. A comparative study between the Fenton treatments, treatment with hydrogen peroxide, and treatment with ferrous sulfate heptahydrate showed the Fenton reaction at neutral pH, attributed to the presence of some organic acids such as citric acid, used as a chelating agent (Fenton modified). The proposed treatment was compared with the one that uses chlorine, applying it in three (3) different tanks through a multifactorial ANOVA with the data collected when scaling the treatment, finding that the proposed Fenton treatment is more efficient. This research was innovative because it demonstrated the feasibility of scaling up the Fenton process to neutral pH in a textile wastewater treatment plant, reducing operating costs and minimizing environmental impact.
Keywords: wastewater, colorants, Fenton, textile industry, real conditions.
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SHARMA A, AHMAD J, & FLORA S J S. Application of advanced oxidation processes and toxicity assessment of transformation products. Environmental Research, 2018, 167: 223–233. https://doi.org/10.1016/j.envres.2018.07.010
WANG N, ZHENG T, ZHANG G, & WANG P. A review on Fenton-like processes for organic wastewater treatment. Journal of Environmental Chemical Engineering, 2016, 4(1): 762–787. https://doi.org/10.1016/j.jece.2015.12.016
ZIEMBOWICZ S, & KIDA M. Limitations and future directions of application of the Fenton-like process in micropollutants degradation in water and wastewater treatment: A critical review. Chemosphere, 2022, 296: 134041. https://doi.org/10.1016/J.CHEMOSPHERE.2022.134041
ÇALIK Ç, & ÇIFÇI D İ. Comparison of kinetics and costs of Fenton and photo-Fenton processes used for the treatment of a textile industry wastewater. Journal of Environmental Management, 2022, 304: 114234. https://doi.org/10.1016/J.JENVMAN.2021.114234
MAHTAB M S, FAROOQI I H, & KHURSHEED A. Optimization of Fenton process for concurrent DOC removal and lower sludge production: Process intensification and impact of reagents dosing mode. Journal of Environmental Management, 2022, 315: 115207. https://doi.org/10.1016/j.jenvman.2022.115207
ZHANG M H, DONG H, ZHAO L, WANG D-X, & MENG D. A review on Fenton process for organic wastewater treatment based on optimization perspective. Science of the Total Environment, 2019, 670: 110-121. https://doi.org/10.1016/j.scitotenv.2019.03.180
SILVA M, & BALTRUSAITIS J. Destruction of emerging organophosphate contaminants in wastewater using the heterogeneous iron-based photo-Fenton-like process. Journal of Hazardous Materials Letters, 2021, 2: 100012. https://doi.org/10.1016/J.HAZL.2020.100012
SARATALE R G, SIVAPATHAN S, SARATALE G D, BANU J R, & KIM D S. Hydroxamic acid-mediated heterogeneous Fenton-like catalysts for efficiently removing Acid Red 88, textile wastewater and their phytotoxicity studies. Ecotoxicology and Environmental Safety, 2019, 167: 385-395. https://doi.org/10.1016/J.ECOENV.2018.10.042
RAMOS M D N, SANTANA C S, VELLOSO C C V, et al. A review on the treatment of textile industry effluents through Fenton processes. Process Safety and Environmental Protection, 2021, 155: 366-386. https://doi.org/10.1016/J.PSEP.2021.09.029
RAMOS M D N, LIMA J P P, DE AQUINO S F, & AGUIAR A. A critical analysis of the alternative treatments applied to effluents from Brazilian textile industries. Journal of Water Process Engineering, 2021, 43: 102273. https://doi.org/10.1016/J.JWPE.2021.102273
LI F, ZHONG Z, GU C, et al. Metals pollution from textile production wastewater in Chinese southeastern coastal area: occurrence, source identification, and associated risk assessment. Environmental Science and Pollution Research, 2021, 28(29): 38689-38697. https://doi.org/10.1007/s11356-021-13488-3
SHRUTHI KEERTHI D, & MUKUNDA VANI M. Optimization studies on decolorization of textile wastewater using natural coagulants. Materials Today: Proceedings, 2022, 57(4): 1546-1552. https://doi.org/10.1016/J.MATPR.2021.12.160
TANVEER R, YASAR A, TABINDA A. et al. Comparison of ozonation, Fenton, and photo-Fenton processes for the treatment of textile dye-bath effluents integrated with electrocoagulation. Journal of Water Process Engineering, 2022, 46: 102547. https://doi.org/10.1016/J.JWPE.2021.102547
SERNA-GALVIS E A, VELEZ-PEÑA E, OSORIO-VARGAS P, et al. Inactivation of carbapenem-resistant Klebsiella pneumoniae by photo-Fenton: Residual effect, gene evolution and modifications with citric acid and persulfate. Water Research, 2019, 161: 354-363. https://doi.org/10.1016/J.WATRES.2019.06.024
XIAO K, PEI K, WANG H, et al. Citric acid assisted Fenton-like process for enhanced dewaterability of waste activated sludge with the in-situ generation of hydrogen peroxide. Water Research, 2018, 140: 232-242. https://doi.org/10.1016/J.WATRES.2018.04.051
ZHANG Y, & ZHOU M. A critical review of the application of chelating agents to enable Fenton and Fenton-like reactions at high pH values. Journal of Hazardous Materials, 2019, 362: 436-450. https://doi.org/10.1016/J.JHAZMAT.2018.09.035
MADS. Resolution 631 of 2015, Ministry of Environment and Sustainable Development of Colombia.
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