The effects of the leaching conditions of the leaching test (Environment Agency Notification No. 13) on the test results

Abstract

In this study, the effects of the leaching conditions of the Environment Agency Notification No.13 test on the test results were examined for general waste incineration ash. Three container placement conditions (setting upright-horizontal shaking, setting sideways-widthwise direction shaking, setting sideways-lengthwise direction shaking) were examined. The average concentration of zinc leached was highest (21.1 mg/L) in the sideways setting with shaking in the widthwise direction, whereas the average concentration leached in the sideways setting with shaking in the lengthwise direction was 20.0 mg/L. The lowest leach concentration (13.1 mg/L) was observed in the upright setting with horizontal shaking. Additionally, four container volume conditions (250, 500, 1000, and 2000 mL) were examined. The highest concentration of zinc leached (average 20.1 mg/L) was observed in the 500 mL container, whereas the average leach concentrations in the 250 and 100 mL containers were 18.5 and 18.4 mg/L, respectively. The leach concentration was the lowest (17.0 mg/L) in the 2500 mL container.