DECREASEMENT OF COLOUR AND COD CONTENT OF THE LIQUID WASTE PRODUCT FROM THE JEANS WASHING INDUSRTY BY CHITOSAN AND Trametes versicolor  

Summary of English journals to complete the tasks of Information Communication Technologies ICT by Yogyakarta State University quote from Indonesian Journal of Chemistry Vol. 10, No 1, March 2010. Keywoard : Colour intensity, COD, chitosan and  Trametes versicolor

DECREASEMENT OF COLOUR AND COD CONTENT OF THE LIQUID WASTE PRODUCT FROM THE JEANS WASHING INDUSRTY BY CHITOSAN AND Trametes versicolor

Rumondang Bulan1, Mersi Suryani Sinaga2, and Darniati2.

1Departmen of chemistry, faculty of mathematics and natural science, university of sumatera utara, jl. Bioteknologi no. 1 Kampus USU medan 20155  2Department of Chemical engineering, faculty of engineering, universitas of sumatera utara.  Receive November 25, 2009: Accept February 2010

Chitosan and Trametes versicolor were used as the material for processing liquid waste product from the jeans washing industry. This study as they were more economis and no negative damage in environmental life. This Reseach is to find out of chitosan and Trametes versicolor effect as the coagulant in decreasing the colour and the COD content of the liquid waste product from the jeans washing industry using the coagulant method and flocculation. The dosage of chitosan and Trametes versicolor were 400, 600, 800, and 1000 mg/L of the loquid waste product whereas the combination of chitosan and Trametes versicolor were 4:1, 3:2, 2:3, and 1:4.  The data resulted from the analisys were shown as a graphics. The research result show that the optimum dosage of chitosan as coagulant was 800 mg/L which was abe to decrease the colour intensity. For blue colour, the intensity decreased from 1.2 to 0,1%; the yellow colour intensity decrease from 0,9 to 0,0% and the COD 91,23%. The optium dosage of the tremetes versicolor of 600 mg/L was able to decrease the blue intensity from 1.2. to 0,11%; the yellow colour intensity decrease from 0,9 to 0,0% and the COD 91,23%. By using the combination of chitosan and trametes versocolor it was shown that the best result was usingthe 3:2 ratio which was able to decrease the blue colour intensity from 0,9 to 0,1% and the yellow intensity from 0,9 to 0,0% and the COD was 86,68 %.

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