Abstract
To reliably predict field operation performance derived from lab-based tests, it is very important to observe and consider all the specific landfill-site properties. The purpose of this study was to suggest and discuss the availability of batch and lysimeter tests to estimate the oxygen amount and the aeration period. To achieve this purpose, a comparison between lab test (batch and lysimeter tests) and full-scale applications was conducted. This study showed that aerobic batch and lysimeter tests could be used to estimate the amount of oxygen (mg-O2/g-DM) required to bio-stabilize landfilled wastes within a short period of time. In addition, aeration periods necessary to reach the target value can be calculated by a first-order kinetic depending on moisture content. Therefore, this study suggests that when applying in situ aeration processes to field-scale landfills, the amount of aeration required to bio-stabilize landfilled wastes has to be determined by the aerobic batch test, and then the aeration period required to reach the target value can be calculated by a reliable monitoring of the oxygen concentration in a landfill site in combination with the first-order kinetic.
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