Gearworks t1_jdi7g5k wrote
Reply to comment by [deleted] in Scientists have shown how toxic dyes can be filtered out of wastewater using the method and material developed by the group. The procedure uses sunlight as a catalyst and doesn’t involve any pressure or heat. It can remove 80 percent of dye pollutants in wastewater. by Wagamaga
We just stopped using those dies, and or use oxidation to break them down
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