Topic
Bioreactor landfill
About: Bioreactor landfill is a research topic. Over the lifetime, 1184 publications have been published within this topic receiving 28725 citations.
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TL;DR: In this paper, an extensive analysis of both organic and inorganic constituents in leachate samples collected from landfills located throughout the United States was conducted in order to predict the effectiveness of various biological and physical-chemical processes for leachates treatment.
Abstract: An extensive analysis of both organic and inorganic constituents in leachate samples collected from landfills located throughout the United States was conducted in this study. Ratios of certain parameters of leachate, such as COD/TOC, BOD 5 /COD, FA-C/TOC VS/FS, etc., and the known age of the landfills can be used to predict the effectiveness of various biological and physical-chemical processes for leachate treatment. Some of these ratios, such as COD/TOC, are also used as an internal check on the reliability of the chemical analysis of leachate samples. The study showed that leachate from a recently leaching fill is best treated by aerobic and anaerobic biological treatment processes. and reverse osmosis treatment were effective in removing organic matter in leachate from stabilized fills, or to remove organic matter in effluent of biological units treating leachate.
252 citations
TL;DR: In this paper, the results of leachate quantity and quality measurement at 20 landfills in the northern part of West Germany over an average period of three years were presented, and the results showed that leachates had high COD and BOD5.
250 citations
TL;DR: The bioreactor landfill provides control and process optimisation, primarily through the addition of leachate or other liquid amendments, and sufficient experience now exists to define recommended design and operating practices.
237 citations
TL;DR: In this article, the authors used estimates of methane yields to estimate the amount of carbon released into the atmosphere from landfilled forest products and found that only 30% of the carbon from paper and 3% of wood are ever emitted as landfill gas.
223 citations
TL;DR: In this article, the authors test the ability of biological enhancement to reduce the time to reach biological stabilization of the waste to non-degradable matter, and to determine the effects of biodegradation on settlement.
Abstract: Landfills are frequently considered for urban development, but have limited end uses due to large differential settlements, leachate generation, and gas emissions. Current landfill design with top- and bottom-liner systems minimize entry of moisture and increase the period required for stabilization of the refuse to occur. The objective of this study is to test the ability of biological enhancement to reduce the time to reach biological stabilization of the waste to non-degradable matter, and to determine the effects of biodegradation on settlement. To accomplish this, six landfill test cells were constructed to model both settlement and decomposition over extended periods. Three cells were designed to simulate bioreactor landfills, while another three were designed to simulate secure vaults. Results demonstrated that secondary settlement is linear with the logarithm of time, and decomposition is well represented by a first-order model. Comparisons indicate that in the short term there is no significant increase in the settlement rate due to biodegradation, however, extrapolation suggests that in the long term the settlement rate will likely increase as the effects of decomposition become more significant.
217 citations