Field scale evaluation of innovations in landfill engineering

垃圾填埋场在关闭后的几十年甚至几个世纪内仍会产生甲烷和渗滤液，特别是在加拿大大草原等半干旱气候地区。 快速稳定旧的城市垃圾填埋场将使市政当局能够减少长期成本，避免未来潜在的环境问题。 快速稳定确实带来了与废物中的水分和气体移动、排水系统堵塞和填埋稳定性相关的挑战。 简而言之，其目的是将填埋工程的岩土工程方面与废物和沥出液生物稳定有关的岩土工程方面以及与过滤器和排水系统堵塞有关的地球化学过程结合起来。 发现补助金资金将为总体努力的具体方面提供资源，这些方面代表了这些技术的长期发展和应用的重要技术/科学挑战，但并不代表市政业主资助的直接优先事项。 鉴于伦敦金融城将支付所有的钻孔、井下仪器和天然气威尔斯井等费用，发现赠款资金将被战略性地用于产生最大的效益。

Landfills can continue to produce methane and leachate for decades or even centuries after closure, particular in semi-arid climates such as the Canadian Prairies.  Rapid stabilization of old municipal landfill sites will enable municipalities to reduce long term costs and avoid potential environmental problems in the future.  Rapid stabilization does present challenges associated with moisture and gas movement in the waste, clogging of drainage systems and landfill stability.   In short, the intent will be to bring together the geotechnical aspects of landfill engineering with those relating to waste and leachate biostabilization, and the biogeochemical processes related to clogging of filters and drainage systems.  Discovery Grant funds will provide resources for specific aspects of the overall effort that represent important technical/scientific challenges for long-term development and application of these technologies, but which do not represent immediate priorities for funding by the municipal owners.  Discovery Grant funds will be used strategically to generate the biggest bang for the buck, given that the City will have paid for all of the boreholes and downhole instrumentation and gas wells etc etc.