Vol.15　　No.6　　November　2004

Paper

Status and Future Prospects of Hydrogen Production from Biomass and Wastes by Pyrolysis-Gasification and Reforming Processes………Katsuya Kawamoto, Hidetoshi Kuramochi and Wei Wu　443 abst

Dioxin Formation on Ash from Gasification Melting System………Kazuyuki Suzuki, Hitoshi Yamazaki, Nobuyasu Kanda and Katsuya Kawamoto　456 abst

A New Fly Ash Treatment Proposal and Practical Tests of Pilot Plants………Mototsugu Matsuno, Katsuhiro Tomoda, Kouji Kawamoto and Takasi Nakamura　465 abst

Medaka（Oryzias latipes）Embryo Toxicity of Treated Leachate from Waste-Landfill Sites………Kohei Sumitani, Shosaku Kashiwada, Kae Osaki, Masato Yamada, Shino Mohri, Shigeki Yasumasu, Ichiro Iuchi and Yoshiro Ono　472 abst

A Study on Comprehensive Analysis Incorporating Environmental Load into Manual Labor within the Recycling Process………Kaduko Nakano, Yasuhiko Wada and Hiroyuki Ohshima　480 abst

Characteristics of Alkali Elution on Incinerator Ash of Sewage Sludge………Yasuhiro Takahashi　491 abst

Effectiveness of Daily Cover Soil on Solid Waste Landfill Stabilization………Naoko Hori, Takayuki Shimaoka, Kentaro Miyawaki, Syogo Sakita and Masataka Hanashima　500 abst

Studies on Bisphenol A and its Origins in Leachates from Solid Waste Landfills………Hiromi Sakamoto, Hiroshi Fukui
Ikuo Souta and Hidehiro Kaneko　511 abst

Note
Investigation of Halogen Content in Used Polystyrene for Home Appliance Goods………Toshiaki Miyanaga and Takuji Motegi　521 abst

A Simple Method for the Detection of Fly-ash Dispersed at Landfill Sites………Hiroshi Fukui and Kunihiko Saitou　525 abst