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首页> 外文会议>Conference on Environmental Monitoring and Remediation III; Oct 28-30, 2003; Providence, Rhode Island, USA >Approach to the vadose zone monitoring in hazardous and solid waste disposal facilities
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Approach to the vadose zone monitoring in hazardous and solid waste disposal facilities

机译：危险废物和固体废物处置设施中的渗流区监测方法

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摘要

In the solid waste (SW) disposal sites, in particular at the unlined, but also at lined facilities that are prone to failure, the vadose zone monitoring should comprise besides the natural vadose zone beneath the landfill, also the anthropogenic vadose zone, i.e. the waste layer and pore solutions in the landfill. The vadose zone screening along the vertical profile of SW facilities with use of direct invasive soil-core and soil-pore liquid techniques shows vertical downward redistribution of inorganic (macroconstitutcnts and heavy metals) and organic (PAHs) contaminant loads in water infiltrating through the waste layer. These loads can make ground water down-gradient of the dump unfit for any use. To avoid damage of protective/reactive permeable barriers and liners, an installation of stationary monitoring systems along the landfill profile during the construction of a landfill, which are amenable to generate accurate data and information in a near-real time should be considered to provide an early alert in case when the chemical composition of pore solution percolating downward the waste profile shows unfavorable transformations, which indicate an excessive contaminant load approaching ground water. The problems concerning invasive and stationary monitoring of the vadose zone in SW disposal facilities has been discussed at the background of monitoring data and permeable protective/reactive barriers considered for use.
机译：在固体废物（SW）处置场所中，尤其是在容易发生故障的无衬里但也有衬里的设施中，渗漏带监测应包括除垃圾填埋场下方的天然渗漏带之外，还包括人为渗漏带，即垃圾填埋场中的废物层和孔隙溶液。利用直接侵入性土壤芯和土壤-孔隙液体技术沿西南偏南设施的垂直剖面进行渗流带筛查，结果表明，渗透到废物中的水中的无机（宏成分和重金属）和有机（PAHs）污染物负荷在垂直向下重新分布层。这些负载可能使垃圾场的地下水下降梯度不适合任何用途。为避免保护性/反应性可渗透性屏障和衬板损坏，应考虑在填埋场建设期间沿填埋场剖面安装固定的监测系统，该系统应能近实时地生成准确的数据和信息。当孔隙溶液的化学成分向下渗透到废物剖面时显示出不利的转变，这表明有过量的污染物接近地下水，因此可以提早预警。在监测数据和考虑使用的可渗透保护性/反应性屏障的背景下，已经讨论了涉及SW处理设施中渗流区的侵入性和静态监测的问题。

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