Predicting the degradation of reactive red‑147 dye in textile wastewater using response surface methodology technique
Document Type
Article
Publication Date
11-10-2022
Abstract
The human health, aquatic life and environment are greatly afected by the existence of industrial waste in water especially the textile dye. Advanced oxidation processes (AOPs) are considered more efective in removing the toxic pollutants from the waste water in comparison with traditional biological, physical and chemical processes. The later have the limitations of high energy requirement, cost and production of secondary pollutants during the treatment process. AOPs received signifcant attentions to eliminate the recalcitrant dyes from the aqueous environment owing to the production of highly reactive hydroxyl radicals produced via light irradiation. This study focused on using the response surface methodology (RSM) to evaluate its prediction and optimizing capability in the deployment of AOPs in removing obstinate pollutants from industrial waste water. The data were obtained from the existing literature related to the decomposition of textile dye [reactive red (RR-147)] under UV illumination in the presence of hydrogen peroxide (H2O2) and the photocatalyst, i.e., titanium dioxide (TiO2). The infuence of diferent process parameters like dye concentration, pH of the solution, H2O2 contents, UV illumination time and photocatalyst were studied on dye removal percentage. The input parameters for efcient removal process were optimized using developed RSM models. Four diferent scenarios were created to see the efect of selected parameters while keeping the remaining process parameters maintained at fxed values. The predicted results depicted that the dye removal percentage was mainly afected by the tested variables, as well as their synergistic efects which was observed compliant with the experimental results. Performance analysis of the developed RSM models showed a high coefcient of determination value signifcantly higher than R2=0.99), thus guaranteed a satisfactory prediction equations of the second-order regression models. The observed results showed that for 50 ppm dye concentration, H2O2 0.9 ml, pH 3.4, TiO2 0.6 g and UV irradiation time 60 min, the maximum breakdown of 92% was observed. The degradation of the RR-147 dye is tested to be more efectively accomplished by the UV/H2O2/TiO2 system.
Recommended Citation
Hegazy, Mohamed Hussein; hassan, Khaled; Helmy, mohamed; and Mohamed, Abdullah, "Predicting the degradation of reactive red‑147 dye in textile wastewater using response surface methodology technique" (2022). Civil Engineering. 189.
https://buescholar.bue.edu.eg/civil_eng/189