Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Recycling of Wastepaper(Ⅷ)-Contamination of Process WAter by System Closure

고지재생연구(제 8보) -제지 공정수 폐쇄화에 따른 오여-

  • 여성국 (한국화학연구소 펄프제지연구센터) ;
  • 류정용 (한국화학연구소 펄프제지연구센터) ;
  • 신종호 (한국화학연구소 펄프제지연구센터) ;
  • 송봉근 (한국화학연구소 펄프제지연구센터) ;
  • 오세균 (한국화학연구소 펄프제지연구센터)
  • Published : 1999.12.01
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Abstract

This study was carried out to simulate the change of various properties of recycled water when zero-discharge system was applied to a KOCC recycling process. contaminants such as chemical oxygen demand, anionic trash, and calcium hardness were gradually increased in the process water as the recycling was repeated . Especially, the increase of anionic trash and COD were closely related to the starch derived from corrugating adhesive in KOCC. Four kinds of water were compared in the preparation of handsheet to evaluate the performance of retention program. Waters used in this work were laboratory tab water, process water from Dong-II mill and the same one treated by UASB process, and closed white water prepared by KRICT. The result revealed that one the major factors fro reducing a retention power was the anioni trash accumulated in the recycled water.

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