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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Characteristics of wastewater from unit systems of automative process for manufacture of paper mulberry pulp fibers

닥 펄프 제조공정 자동화에 따른 단위공정 폐수의 특성

  • Hwang, Ji-Hyun (Dept. of Forest products and biotechnology, Kookmin University) ;
  • Hwang, Sung-Jun (Dept. of Forest products and biotechnology, Kookmin University) ;
  • Kim, Hyoung-Jin (Dept. of Forest products and biotechnology, Kookmin University)
  • 황지현 (국민대학교 삼림과학대학 임산생명공학과) ;
  • 황성준 (국민대학교 삼림과학대학 임산생명공학과) ;
  • 김형진 (국민대학교 삼림과학대학 임산생명공학과)
  • Received : 2015.06.15
  • Accepted : 2015.06.24
  • Published : 2015.06.30
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Abstract

Paper mulberry fibers have been used as fibrous raw materials for manufacturing traditional handmade paper, hanji for a long time. Compared to wood pulp fibers, pulp fibers from mulberry bast tissue have some benefits in physical and chemical properties due to their high D.P (degree of polymerization), M.W (molecule weight) and long fiber length. Specially, Korean handmade hanji shows outstanding characteristics in mechanical tensile strength, folding endurance, flexibility and long sustainable conservation properties. Therefore, hanji is widely applied to daily supplies, hygienic goods, medical supplies, clothing industries and so on. Recently, the potential demand of mulberry pulp fibers is more and more increased on the strength of high application fields. This study was focused on the possibility of wastewater recycling in unit operation systems for the development of automated mass production line. The properties and environmental loads of wastewater from debarking, cooking, bleaching and screening process were analyzed by means of COD, conductivity, turbidity and solid materials. The wastewater from debarking and cooking process was comparatively high in pollution load, and would be treated by additional approaches of chemico-physical method.

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References

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