January 23rd, 2008 by admin
In the design of municipal landfill leachate collection systems, some state regulatory agencies require carbonate content of leachate collection system aggregate not to exceed 15 percent by weight. This requirement comes from a legitimate concern about the possibility of aggregate degradation, or loss of mass due to contact with leachate. Most involved in landfill design [...]
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November 30th, 2007 by admin
This summer was the second summer season, and the 4th stage of restoration capping at this Wexford County Council landfill during which Rowe Environmental provided capping construction quality assurance services. The start of the works in June 2007 coincided with the uniqely heavy rainfall exprienced throughout the region that month. Although clay capping proceeded in between [...]
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September 28th, 2007 by admin
This is a question for our expert visitors. The answer is: “Leakage Detection Layers”. We have quoted some text from a US landfill lining systems report. “The double-composite liner system, …, consists of a primary liner overlaying a secondary liner with a leak detection layer between the two liners. Both the primary and secondary liners [...]
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July 22nd, 2007 by admin
The operator of a modern landfill site in responding to the requirements for minimising leachate generation is likely to fill the site rapidly within small constrained areas to reduce rainfall ingress. When the operational cell is complete to restoration levels it is likely to be capped to prevent further ingress of rain water. This means [...]
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July 11th, 2007 by admin
The purpose of Landfill Construction Quality Assurance is to ensure that the landfill is constructed in full compliance with the specification. The primary responsibility for ensuring this, rests with the landfill construction (civil engineering) contractor. The CQA Engineer (provided by Rowe Environmental), on site, provides independent inspection and verification of the work, and receives all the [...]
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