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The Analysis of Environmental Impact Load by Fibrous Raw Materials and Wet-end Additives in Papermaking Process  

Kim, Hyoung-Jin (Department of Forest Products, Kookmin University)
Shin, Dong-Uk (Department of Forest Products, Kookmin University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.37, no.3, 2005 , pp. 50-58 More about this Journal
Abstract
It is generally known that paper industry is the second largest industry in the use of process water, and also have the highest environmental impact load in the contaminant sources. Paper is produced from the mixtures composed of 1% fibrous raw materials and 99% water. The optimum use of process water effects on the quality properties of paper and the environmental impact load of waste water treatment. In this research, the kinds of fibrous raw material & additives used in the paperboard production line were investigated, and the quantification of environmental loads and the environmental effects of process water on COD potential were evaluated. The NBDCODs were also analyzed from process water by the method of waste water treatment in paper mill and applied for the optimum use of recycling water, and zero effluent process. In the fibrous raw materials, KOCC caused the highest COD potentials, and sack paper & UKP was comparatively low. The NBDCOD of KOCC largely reduced after biological treatment because of easily biodegradable properties, but AOCC contained non-biodegradable materials. In chemical additives, COD was high in turns of rosin>starch>deaeration agent>dye, NBDCOD greatly reduced in starch and deaeration agent. In the case of 2 kinds of paperboard product, the COD potentials was mainly high in starch, AOCC and KOCC.
Keywords
senvironmental impact load; fibrous raw material; wet-end additives; COD; NBDCOD; papermaking process; paperboard;
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