Hiroshi Fukui*, Nobuo Awaji* and Tomiharu Ito**

*Kanagawa Environmental Research Center
**Food and Drug Safety Center, Hatano Research Institute

+ Correspondence should be addressed to Hiroshi Fukui:
Kanagawa Environmental Research Center
(842 Nakaharashimojyuku, Hiratsuka-shi, Kanagawa 254 Japan)

Abstract

Comprehensive index such as BOD or COD is currently used to estimate water pollution by organic substances in leachate from landfill, and any component has not been characterized in it. In order to study organic substances in pit spill from mixed refuse and in leachate from landfill for mixed refuse without incineration procedure, organic compounds have been initially examined. As a result, amino acids and fatty acids contained in animals and plants, were detected in refuse pit spill, but not in leachate from landfill for mixed refuse. It is suggested that these are derived from the decomposition of organic components of waste inside landfill. When organic substances in leachate were analyzed by GC/MS, phthalic acid esters, DEHP and DBP, were identified in it on the basis of their mass spectra.

Key words: solid waste landfill site, mixed refuse, leachate, organic substances, phthalic acid esters