Statistical Analysis of Leachate Characteristics in Pilot Scale Landfill Lysimeter

The objective of this study was to analyze the characteristics of leachate in pilot scale landfill lysimeter for inorganic and organic compounds as well as metal and heavy metal concentrations against their operational conditions based on statistical tool through statistical package for social science (SPSS) software. To these attempts, three pilot scale landfill lysimeter test facilities were set-up at KUET campus, Bangladesh. Three different situations of landfill were considered here, however, both the sanitary landfill and open dump conditions having a base liner and two different types of cap liner were simulated. The simulated lysimeters were maneuvered at different operational conditions of leachate detection (A1) and collection (A2) system of open dump lysimeter-A as well as the leachate collection system of sanitary landfill lysimeter-B and C. Based on the evaluated results it was observed that the physical, chemical and biological characteristics of the leachate varied significantly for different condition of construction materials used as cap and base liner in lysimeter. The reveled results of leachate characteristics were analyzed by statistical tool such as Analysis of Variance (ANOVA) and correlations has also been evaluated and discussed. For analyzing the leachate data, the confidence level 95% for ANOVA was considered.