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nature. Illustration source: Unsplash
Do you know what waste is? Waste is a residual product from a production process, both industrial and domestic. One of the most important and frequently encountered environmental problems is the disposal of textile industry waste, because in general textile waste contains large amounts of harmful organic chemicals. Dye waste is a highly soluble chemical compound and is widely used in the textile industry, such as the batik industry.
In the coloring process only some of the dye is absorbed by the material and the rest will be disposed of as waste water. So that the wastewater becomes colored and polluted. The release of concentrated dye solutions into waters can contaminate water resources, because the dyes prevent the penetration of sunlight, thereby reducing the process of photosynthesis and organisms in water (Alinsafi et al., 2007). Thus we need to decompose this hazardous dye waste to be safer and not have a bad impact on the environment.
Why does it have to be processed? and How? The amount of waste that is quite large without being accompanied by appropriate processing can cause several impacts, both for human health and the environment. One of the efforts to reduce the level of dye waste is by decomposing the dye waste by utilizing other chemically treated waste.
Indonesia has abundant mineral resources, especially metal minerals which are used as the main raw materials to support the national steel industry. However, like other industries, the steel industry certainly contributes waste as well and has an impact on the environment.
Several researchers have reported that this steel waste can be reused to decompose other wastes, one of which is dye waste. Steel waste or mill scale generally contain the mineral iron in elemental form and three types of iron oxide, namely wustite (FeO), hematite (α-Fe2O3), and magnetite (Fe3O4) (jikar & Dhokey, 2020).
Inner elements mill scale This can be utilized by means of chemical processing so that it can be used to decompose dye waste. This material can also be combined with other semiconducting materials such as TiO2, ZnO, WO3, CdO, CuO, NiO, and SnO2, which show high optimal performance for decomposing dyes (Ghanbarnezhad et al., 2017).
For the decomposition of this waste, it is actually quite easy to use the photocatalyst principle, in which the method is to add a few grams of catalyst from processed steel waste into certain dyes, then for observations, samples are taken every certain time and analyzed in the laboratory.
Maybe these methods should have been used to treat or decompose waste on a laboratory scale because basically textile or dye waste is waste that is harmful to the environment, both organisms in the water and humans themselves. To move towards a greener transition, let’s protect and preserve aquatic organisms by utilizing steel waste to decompose dye waste. What do you think?
Reference
Alinsafi, A., Evenou, F., Abdulkarim, E. M., Pons, M. N., Zahraa, O., Benhammou, A., Yaacoubi, A., & Nejmeddine, A. (2007). Treatment of textile industry wastewater by supported photocatalysis. Dyes and Pigments, 74(2), 439–445. https://doi.org/10.1016/j.dyepig.2006.02.024
Ghanbarnezhad, S., Baghshahi, S., Nemati, A., & Mahmoodi, M. (2017). Preparation, magnetic properties, and photocatalytic performance under natural daylight irradiation of Fe3O4-ZnO core/shell nanoparticles designed on reduced GO platelet. Materials Science in Semiconductor Processing, 72(May), 85–92.
2023-07-20 00:45:45
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