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Non-Composted Municipal Solid Waste Processing Byproduct Effect on Soil Reclamation

机译:非堆肥城市生活垃圾处理副产品对土壤复垦的影响

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摘要

A new garbage processing technology has been developed that sterilizes and separates inorganic and organic components of municipal solid waste. The non-composted byproduct of this process, Fluff ®, has the potential to be utilized as a soil amendment to improve soil conditions in highly degraded soils. A study was initiated to evaluate Fluff as a soil amendment for establishing native grasses on disturbed US Army training lands. The Fluff was incorporated into a sandy loam soil at Fort Benning Military Reservation, GA on two sites: a moderately degraded and a highly degraded soil. The Fluff was incorporated at rates of 0, 18, 36, 72, and 143 Mg ha−1 to assess the effects on soil properties for two growing seasons. The addition of Fluff improved available plant nutrients and soil pH levels at both sites. Also, Fluff reduced the level of soil bulk density and increased soil concentration of carbon (C) and nitrogen (N). Because no adverse environmental effects were detected and Fluff improved soil physical and nutrient conditions as well as improving perennial grass establishment with increasing application rates, land application of Fluff to degraded US Army training grounds could be considered a viable and beneficial alternative to current waste management practices.
机译:已经开发了一种新的垃圾处理技术,可以对城市固体废物的无机和有机成分进行灭菌和分离。该方法的非堆肥副产品Fluff®有潜力用作土壤改良剂,以改善高度退化的土壤中的土壤状况。发起了一项研究,以评估Fluff作为土壤改良剂,以在受干扰的美国陆军训练用地上建立原生草。将绒毛掺入到佐治亚州本宁堡军事保留区的沙质壤土中的两个位置:中度退化的土壤和高度退化的土壤。绒毛的添加量分别为0、18、36、72和143 Mg ha-1,以评估两个生长季节对土壤特性的影响。添加Fluff可以改善两个地点的可用植物养分和土壤pH值。另外,Fluff降低了土壤容重水平,并提高了土壤中碳(C)和氮(N)的浓度。由于未发现不利的环境影响,并且Fluff改善了土壤物理和养分状况,并随着施用量的增加而改善了多年生草的生长,因此Fluff在退化的美国陆军训练场上的土地施用可被视为当前废物管理实践的可行且有益的替代方法。

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