Department of Chemical Engineering, National Institute of Technology Warangal, Hanamkonda, India.
Department of Civil and Environmental Engineering, University of Surrey, Guildford, UK.
Environ Technol. 2021 Aug;42(19):2968-2981. doi: 10.1080/09593330.2020.1720303. Epub 2020 Feb 11.
In this work, the removal of Methylene Blue dye from the synthetic textile effluent has been investigated using a hybrid system (photocatalysis and nanofiltration). The Commercial ZnO powder was used as a catalyst in the photocatalytic operation. Response surface methodology (RSM) was employed to optimize the various operating parameters such as pH, catalyst loading and time duration and this optimization has enhanced the decolorization efficiencies. The results were compared and contrasted with the individual as well as the combined systems at optimized conditions. The results indicate that the photocatalysis process alone has resulted in 33% of dye decolorization and 26.5% of total organic carbon (TOC) removal, while the individual ceramic nanoflitration system has yielded 43% of decolorization and 35.03% TOC removal. About 94% of the dye was decolorized, and 70% of TOC was removed in 94.23 minutes of operation by the hybrid system at optimized initial operating conditions.
在这项工作中，使用混合系统（光催化和纳滤）研究了从合成纺织废水中去除亚甲基蓝染料。商业 ZnO 粉末在光催化操作中用作催化剂。响应面法（RSM）用于优化各种操作参数，如 pH 值、催化剂负载和时间持续时间，这种优化提高了脱色效率。将结果与单独和组合系统在优化条件下进行了比较和对比。结果表明，单独的光催化过程导致染料脱色率为 33%，总有机碳（TOC）去除率为 26.5%，而单独的陶瓷纳滤系统的脱色率为 43%，TOC 去除率为 35.03%。在优化的初始操作条件下，混合系统在 94.23 分钟的运行时间内使染料脱色率达到 94%，TOC 去除率达到 70%。
