Vol. 66, No. 7  Contents

Energy Saving U
      1    Approach to Energy Saving in Niigata Mill
             ―Energy Saving at Kraft Pulping Process―     …… Norihiko Shimokoshi
      6    Energy Saving Introducing Vacuum Box instead of the Belt Drive Extractor
     …… Koichi Suzuki
     11    Increasing Refiner Efficiency by Spline Technology ……Takamitsu Tanaka
     16    Presentation of Underground Temperatures Renewal Type Geothermal Heat
          Pump System
             ―Increase of Geothermal Heat―Exchange Efficiency by Groundwater Forcible Flowof Shallow Layer Part―
……Tadashi Tsunoda
     23    Energy Saving Techniques for Paper Factory
            ―Managing both Economic and Environmental Efficiency for Effective Utilization of Energy―
     …… Kazuki Hasegawa
Topics & Information
     31    Air Compressor Pursuing Energy Saving, Power Saving and CO2 Reduction
    ……Tomohiro Kaneko and Yasukuni Tanaka
     34    The Latest Technology of Metso Air System     ……Toru Takahashi
     40    Pulping Technologies for High Quality Pulp from Low Quality Waste Paper
            ―The Technologies of Andritz FibreFlow® Drum Pulper―
    ……Toshio Okunishi
     45    Experion MX     ……Mikio Kojima
     51    Rapid Simultaneous Substance Identification in Pulp and Paper Mill Effluent
              by GCMS     ……Keiko Fujita, Hiro Iwata and Hitoshi Okada
     56    Prospect of Bio-Refinery Researches     ……Seiji Ohara
Research Report (Original Paper)
     63    Relationship between Hexenuronic Acid Content of Pulp and Brightness Stability in
            Accelerated Aging
……Eiko Kuwabara, Xin Zhou, Mitsuko Homma, Shiho Takahashi, Mikio Kajiyama
and Hiroshi Ohi
Pulp and Paper Mills in Japan(37)
     92    Hokkaido Mill-Asahikawa, Nippon Paper Industries Co., Ltd.
……Nippon Paper Industries Co., Ltd.
     68    Yashio Mill, Rengo Co., Ltd. ……Rengo Co., Ltd.
     03    Committee report
     46    Coffee breakt
     99    Papyrus
    102    Industry News(Domestic and International)
    107    List of Titles in Foreign Journals Received by JAPAN TAPPI
    108    List of Patents issued and Laid―open Publication
    117    Price list of Domestic Logs and Wood Chips by District
    118    Wholesale Price list of Papers at Tokyo Trade Center
    120    Other Monthly Statistics
    122    News from the Association