Paper

An Experimental Study of Microorganic Aerobic and Anaerobic Decomposition of Seaweed
----Ikuo Souta, Nobuo Awaji and Seiiti Kaneko 79abst

Leaching Properties of Contamiriants in a Solid Waste Landfill Layer
----Namhoon Lee, Tetsuya Kusuda, Mitsuru Shibagaki, Takayuki Shimaoka and Masataka Hanashima 87abst

Treatment of Wastewater in a Dredged Soil Waste Disposal Site,Using Sand Filtration and Higher Organisms
----Isao Fukunaka, Zensuke Inoue, Kazuhiro Takamizawa, Toshihiko Hasebe, Miyoji Konae, Kiyoshi Hatano, Takao Takemika, Hiroshi Iida and Syoichi Mori 97abst

Characteristics of Unsaturated Water Flow and Measuring Method of Unsaturated Hydraulic Conductivity in Sanitary Landfill Layers
----Nobutoshi Tanaka and Toshihiko Matsuto 107abst