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TREATMENT OF DEVICE DYEING WASTEWATER BY PHOTOCATALYST WITH THE ABSORBENT
Organization(s):Krachaengwittaya School
Country:Thailand
Student(s):Mrs.Yupawan Triratwitcha
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:Yupawan Treratvidcha
Contributors:High School Science Teacher, Krachaengwittaya School, Si Sa Ket, Thailand
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Date Submitted:10/07/2014
There are various processes for silk weaving and one of the most important stages is dyeing. Removal of synthetic dyes from dyes wastewater is concerned research and innovation based on the decolourisation. The dye treatment vessel imitates the strainer by the photocatalytic oxidation is compared for the water quality before and after oxidation. This research demonstrates the dye treatment vessel. It consists of 4 parts. First, the dye wastewater is mixed with RHA. Second, the liquid is decanted into the vessel via the second pipe made from rice husk. The third pipe is made from sand and passed through the fourth pipe in aqueous solution by photoreaction. The photocatalyst as titanium dioxide under UV light illumination is used. The result showed that the percentage of decreasing of BOD, COD, Cr, Mn, Cu and Hg in the effluent were 97.82, 99.59, 94.90, 89.58, 100 and 100% (red) and 87.23, 93.12, 99.07, 61.59, 100 and 100% (blue).