Institute for Color Science and Technology with scientific cooperation of Iran Color Society Journal of Color Science and Technology 1735-8779 1 2 2007 12 22 Investigation of the Toxicity Reduction in Reactive Dye Solution and Real Textile Wastewater by Nanophotocatalysis Process Using Daphnia Magna Investigation of the Toxicity Reduction in Reactive Dye Solution and Real Textile Wastewater by Nanophotocatalysis Process Using Daphnia Magna 91 96 75906 FA A. H. Mahvi School of Public Health, Tehran University of Medical Sciences M. Ghanbarian School of Public Health, Tehran University of Medical Sciences K. Naddafi Department of Environmental Health Engineering, Tehran University of Medical Sciences N.M. Mahmoodi Department of Environmental Research, Institute for Color Science and Technology Journal Article 1970 01 01 In this research, the decolorization and toxicity reduction of colored solution (C.I. Reactive Orange 16, RO16) and real textile wastewater using nanophotocatalysis process were investigated. Effective decolorization parameters such as titania photocatalyst load, dye concentration, pH and inorganic salts were optimized. The toxicity reduction of wastewater was assessed by bioassay using Daphnia magna. At the beginning of the process, the toxicity of wastewater increased and its toxicity decreased at the end of the process. The results showed that the nanophotocatalysis process has the decolorization and toxicity reduction capabilities of real textile wastewater. In this research, the decolorization and toxicity reduction of colored solution (C.I. Reactive Orange 16, RO16) and real textile wastewater using nanophotocatalysis process were investigated. Effective decolorization parameters such as titania photocatalyst load, dye concentration, pH and inorganic salts were optimized. The toxicity reduction of wastewater was assessed by bioassay using Daphnia magna. At the beginning of the process, the toxicity of wastewater increased and its toxicity decreased at the end of the process. The results showed that the nanophotocatalysis process has the decolorization and toxicity reduction capabilities of real textile wastewater. https://jcst.icrc.ac.ir/article_75906_89b31d3c07227d8bbc4c1455d722a141.pdf