Reaper0700 t1_jdiypqc wrote
Reply to comment by trainercatlady 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
Both. Both is good.
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