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首页> 外文会议>The Solid Waste Association of North America~(~R) 7th Annual Landfill Symposium Jun 17-19, 2002 Louisville, Kentucky >RELATIONSHIP BETWEEN BACTERIAL NUMBERS, DEPTH, AND MOISTURE CONTENT OF SOLID WASTE SAMPLES FROM A FULL-SCALE MUNICIPAL LANDFILL AT OUTER LOOP
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RELATIONSHIP BETWEEN BACTERIAL NUMBERS, DEPTH, AND MOISTURE CONTENT OF SOLID WASTE SAMPLES FROM A FULL-SCALE MUNICIPAL LANDFILL AT OUTER LOOP

机译：大型城市垃圾填埋场中细菌数量，深度和固体废物水分含量之间的关系

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Core samples of refuse from different depths within the Outer Loop Landfill, Louisville, KY, a full-scale operating municipal landfill, were obtained using a 3ft diameter bucket auger. The samples were processed and liquid extracts were obtained. The moisture content of the extracted samples was determined. Five functional groups of bacteria aerobes, anaerobes, denitrifiers, sulfate reducers and methanogens were enumerated in the solid waste extracts. The relationship between the moisture content of the sample and the microbial numbers were examined along with the relationship between the microbial numbers and the depth from which the sample came. The analysis shows that there is no statistically significant correlation between moisture content (47-65%) of the wastes and the numbers of different groups of bacteria at different depths. Comparison of the moisture content and the depth of the samples yielded an r~2 of 0.027. The relationship between moisture content and aerobes (r~2=0.085), total anaerobes (r~2=0.179), sulfate reducers (r~2= 0.185), and denitrifiying bacteria (r~2= 0.048) did not result in a statistically significant correlation. The relationship between the numbers of different groups of bacteria and depth for two corings, coring 1 and coring 2, were also analyzed. No correlation between numbers and depth was found for any functional group. However, strong correlations between aerobes and anaerobes and anaerobes and methane producers were found from samples from the two corings. Just as moisture content does not correlate with the depth where the sample is found, the counts also, in turn, do not correlate to the depth of the sample. Factors other than the depth and moisture content seem to influence the activity of different functional groups.
机译：使用直径3英尺的斗式螺旋钻，从肯塔基州路易斯维尔外环路垃圾填埋场（一个全面运行的市政垃圾填埋场）中，从不同深度的核心垃圾样品中提取。处理样品并获得液体提取物。确定提取样品的水分含量。固体废物提取物中列举了细菌需氧菌，厌氧菌，反硝化剂，硫酸盐还原剂和产甲烷菌五个功能组。检查样品的水分含量与微生物数量之间的关系，以及微生物数量与样品来源深度之间的关系。分析表明，废物中的水分含量（47-65％）与不同深度的不同细菌组之间没有统计学上的显着相关性。比较水分含量和样品深度可得出r〜2为0.027。水分含量与需氧菌（r〜2 = 0.085），总厌氧菌（r〜2 = 0.179），硫酸盐还原剂（r〜2 = 0.185）和反硝化细菌（r〜2 = 0.048）之间的关系不会导致具有统计学意义的相关性。还分析了两个取芯，取芯1和取芯2的不同细菌数量与深度之间的关系。没有发现任何功能组的数量和深度之间的相关性。然而，从两个取芯的样品中发现了需氧菌和厌氧菌之间以及厌氧菌和甲烷生产者之间的密切相关性。正如水分含量与发现样品的深度不相关一样，计数也与样品的深度不相关。除了深度和水分含量以外，其他因素似乎也会影响不同官能团的活性。

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