Abstract
Stabilization is an important factor in maintaining safety at a waste landfill. Various research techniques have been tried and developed at landfills, however investigation methods for stabilization have not yet been generalized. This paper presents an outline of research techniques and the results obtained using monitoring investigations since 2005 at an industrial-controlled landfill in Fukui Prefecture. Since stabilization is advanced by “washing out of salts”, “forming solid compounds” and “decomposition of organic matter”, it is important to estimate for salts and organic matter at any landfill. The general situation at landfills cannot be estimated solely by local investigation because it is not homogeneous, with various mixed wastes. Results from several different investigations must be combined with each other in order to result in correct evaluations. In addition, a periodic follow-up investigation is needed to estimate the long-term stabilization process.
