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COD Reduction and Process Optimization of Waste Water from the Paper-mill  

Shin, Dong Ho (College of Environment and Applied Chemistry Chemical Engineering & Advanced Materials Engineering, Kyung Hee University)
Lee, Yong Taek (College of Environment and Applied Chemistry Chemical Engineering & Advanced Materials Engineering, Kyung Hee University)
Publication Information
Applied Chemistry for Engineering / v.16, no.5, 2005 , pp. 693-697 More about this Journal
Abstract
We researched in the optimization of unit process and the stabilization of discharged water quality through the treatment of the occurrence of wastewater classified by place of production which has high COD load and non degradable COD load in paper industry. As the result, using polymer, inorganic flocculants and alum at the same time is effective to advance the COD value through the colloid material removal with SS in the first treatment process. Moreover, it is determined to keep optimum of $FeCl_2/H_2O_2$ in the concentration of 1000 ppm in the ratio of 1/1. Because It is confirmed that to input excess chemicals using Fenton oxidation method gives adverse effect to water quality.
Keywords
paper wastewater; coagulant; alum; fenton oxidation method; COD removal;
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