METHOD FOR REMOVING GENERATED GAS IN WASTE DEPOSITION SITE AND IMPERVIOUS SHEET USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a waste deposition site of high safety by removing the gases generated in the waste deposition plant by effectively utilizing wastes as effective resources. SOLUTION: Cation exchange materials are synthesized by heating or pressurizing the wastes containing silicic acid components and aluminum components under an alkaline condition to effect reaction and a mixture composed of the resultant cation exchange materials or the cation exchange materials subjected to iron substitution and iron particles is mixed with the wastes in the deposition site and the mixture is buried. Further, the mixture composed of the cation exchange materials and the cation exchange materials subjected to the iron substitution and the iron particles is mixed with a biodegradable resin and the mixture is formed to sheet bodies which are buried together with the wastes. The mixture composed of the cation exchange materials or the cation exchange materials subjected to the iron substitution and the iron particles is further mixed with a thermoplastic resin and the mixture is molded to form the impervious sheets.