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首页> 外文期刊>Environmental Science & Technology >Field Application of Partitioning Gas Tracer Test for Measuring Water in a Bioreactor Landfill
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Field Application of Partitioning Gas Tracer Test for Measuring Water in a Bioreactor Landfill

机译：分区气体示踪剂试验在生物反应器填埋场中测水的现场应用。

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摘要

Two field-scale partitioning gas tracer tests (PGTTs) were performed to evaluate the utility of the PGTT method for measuring water saturation and moisture content in a full-scale bioreactor landfill, where waste biodegradation resulted in elevated temperatures and significant landfill gas production. The average water saturation and moisture content were measured for waste volumes of approximately 20 m~3 and results were compared to gravimetric measurement of moisture content made on samples collected from the landfill. In the center of the landfill, the moisture content estimated from the PGTT was M_c = 0.26 ± 0.03, which was nearly identical to the gravimetric measurement of waste samples taken from the same region (M_c = 0.28). PGTT-estimated moisture contents in a dry area of the landfill were much smaller (M_c = 0.10 ± 0.01) and consistent with available gravimetric measurements. Biodegradation of tracers and temporal variations in landfill gas production were minimal and did not influence the tests. These field experiments demonstrate the utility of the PGTT method for measuring water saturation and estimating moisture content in bioreactor landfills with active waste degradation and generation of landfill gases. However, use of the PGTT to estimate the in situ moisture content requires estimates of the refuse porosity, dry bulk density, and temperature, which might limit its application.
机译：进行了两个现场规模的分区气体示踪剂测试（PGTT），以评估PGTT方法在全规模生物反应器垃圾填埋场中测量水饱和度和水分含量的实用性，其中废物的生物降解导致温度升高和大量垃圾填埋气产生。对大约20 m〜3的废物量测量了平均水饱和度和水分含量，并将结果与​​对垃圾填埋场收集的样品的水分含量进行了重量分析。在垃圾填埋场的中心，根据PGTT估算的水分含量为M_c = 0.26±0.03，这几乎与从同一区域采集的废物样品的重量法测量结果相同（M_c = 0.28）。 PGTT估计的垃圾填埋场干燥区域中的水分含量要小得多（M_c = 0.10±0.01），并且与可用的重量测量结果一致。示踪剂的生物降解和垃圾填埋气生产的时间变化很小，并且不影响测试。这些现场实验证明了PGTT方法可用于测量水饱和度并估算生物反应器垃圾填埋场中的水分含量，并有效降解废物并产生垃圾填埋气体。但是，使用PGTT估算原位含水量需要估算垃圾的孔隙率，干堆积密度和温度，这可能会限制其应用。

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  • 来源
    《Environmental Science & Technology》 |2007年第1期|p.277-283|共7页
  • 作者

    BYUNGHYUN HAN; PAUL T. IMHOFF; RAMIN YAZDANI;

  • 作者单位

    Department of Civil and Environmental Engineering, University of Delaware, 360 DuPont Hall, Newark, Delaware 19716;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
  • 关键词

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