The use of kaolinite/zeolite mixtures for landfill liners. (22nd August 2005)

• Record Type: Journal Article
• Authors: Guney, Yucel; Koparel, Savas
• Is Part Of: International journal of environment and pollution. Volume 23:Number 4(2005)
• Page Start: 449
• Page End: 459
• Publication Date: 2005-08-22
• Subjects: cation exchange capacity -- heavy metals -- kaolinite -- landfill liners -- pH -- salts -- zeolite -- absorption capacity -- waste dumps -- environmental pollution; Environmental policy -- Periodicals; Environmental engineering -- Periodicals; Environmental sciences -- Periodicals; Pollution -- Periodicals; 363.73
• Languages: English
• ISSNs: 0957-4352

Abstract

The use of kaolinite/zeolite mixtures as alternative landfill materials has been studied. The ratios of kaolinite/zeolite used were K/Z = 0.1, K/Z = 0.2 and K/Z = 0.3. To determine the geotechnical and physicochemical properties of the mixtures, their optimum moisture content, which provides the best compression out in the field, was determined by a compaction test. Also, tests for unconfined compression strength, hydraulic conductivity and consolidation were carried out. As a result, the optimum mixture was found to be K/Z = 0.2. To test the effect of contaminants, this optimum mixture was contaminated with Na, Ca, Pb, and Cu, and tests of the specific gravity, liquid and plastic limits, unconfined compression strength, consolidation, pH, and electrical conductivity were performed. It is concluded that the K/Z = 0.20 mixture has high absorption capacity and can be used in the landfill liner materials.