利用分区气体示踪试验测量垃圾填埋场中水分的季节变化。
Measuring seasonal variations of moisture in a landfill with the partitioning gas tracer test.
作者信息
Han Byunghyun, Jafarpour Behnam, Gallagher Victoria N, Imhoff Paul T, Chiu Pei C, Fluman Daniel A
机构信息
Department of Civil and Environmental Engineering, University of Delaware, 301 DuPont Hall, Newark, DE 19716, USA.
出版信息
Waste Manag. 2006;26(4):344-55. doi: 10.1016/j.wasman.2005.11.004. Epub 2006 Feb 3.
Seven pilot-scale partitioning gas tracer tests (PGTTs) were conducted to assess the accuracy and reproducibility of this method for measuring water in municipal solid waste landfills. Tests were conducted in the same location over a 12-month period, and measured moisture conditions ranged from possible dry waste to refuse with a moisture content of 24.7%. The final moisture content of 24.7% was in reasonable agreement with gravimetric measurements of excavated refuse, where the moisture content was 26.5+/-6.0 CI%. Laboratory tests were used to assess the utility of the PGTT for measuring water in small pores, water sorbed to solid surfaces, and the influence of dry waste on PGTTs. These experiments indicated that when refuse surfaces are not completely solvated with water, PGTTs may produce misleading results (negative estimates) of water saturation and moisture content.
进行了七次中试规模的分区气体示踪试验（PGTT），以评估该方法在测量城市固体垃圾填埋场水分方面的准确性和可重复性。试验在同一地点进行，为期12个月，测量的湿度条件范围从可能的干垃圾到含水量为24.7%的垃圾。最终含水量24.7%与挖掘出的垃圾的重量测量结果合理一致，其中含水量为26.5±6.0置信区间%。实验室测试用于评估PGTT在测量小孔中的水分、吸附在固体表面的水分以及干垃圾对PGTT的影响方面的效用。这些实验表明，当垃圾表面没有完全被水溶剂化时，PGTT可能会产生关于水饱和度和含水量的误导性结果（负估计值）。
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