Zhao Xianda, Musleh Reem, Maher Seth, Khire Milind V, Voice Thomas C, Hashsham Syed A
CTI and Associates, Inc., 12482 Emerson Drive, Brighton, MI 48116, USA.
Waste Manag. 2008 Dec;28(12):2623-34. doi: 10.1016/j.wasman.2008.01.007. Epub 2008 Mar 7.
A 0.49-ha bioreactor landfill cell containing approximately 32,400 metric tons of municipal solid waste was constructed and operated at the Northern Oaks Recycling and Disposal Facility in Harrison, Michigan, USA. Design of this full-scale research cell included a network of 48 temperature and moisture sensors, leachate collection basins, and gas sampling ports, which provided for continuous temperature and moisture data and periodic measurements of both the quantity and composition of the leachate and gas produced. The data indicated that methane generation started approximately 3 months after filling in lifts that were placed during summer, but not until 8 months for those filled during the winter. Temperature data indicated that near-0 degrees C temperatures persisted within the lifts filled during winter for more than 6 months, and that gas production was minimal during this period. These results suggest that in addition to maintaining optimal moisture levels within the waste mass, temperature control must be a key design consideration in cold climates.
在美国密歇根州哈里森市的北橡树回收与处置设施，建造并运行了一个占地0.49公顷的生物反应器填埋单元，其中包含约32400公吨城市固体废物。这个全尺寸研究单元的设计包括一个由48个温度和湿度传感器、渗滤液收集池以及气体采样口组成的网络，可提供连续的温度和湿度数据，并定期测量所产生渗滤液和气体的数量及成分。数据表明，夏季填埋的料层在填埋后约3个月开始产生甲烷，而冬季填埋的料层则直到8个月后才开始。温度数据显示，冬季填埋的料层内接近0摄氏度的温度持续了6个多月，且在此期间气体产量极低。这些结果表明，除了在废物堆中保持最佳湿度水平外，在寒冷气候下，温度控制必须成为关键的设计考量因素。
