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首页> 外文会议>38th Annual International Solid Waste Exposition, Oct 23-26, 2000, Cincinnati, Ohio >THE ENGINEERING PERSPECTIVE - THE USE OF SHREDDED IN MSW LANDFILL APPLICATIONS
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THE ENGINEERING PERSPECTIVE - THE USE OF SHREDDED IN MSW LANDFILL APPLICATIONS

机译：工程方面的观点-碎纸在垃圾填埋场应用中的使用

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As mentioned, over 280 million scrap tires are estimated to be generated annually in the United States. Out of this number, an estimated 237 million tires are discarded, representing about 3 million tons (2,721,000 tonnes) of material, or slightly less than 2% of the MSW stream (Serumgard, 1997). Further, the present stockpile of discarded automobile tires in the USA exceeds 800 million. Thus, there is an enormous resource available for reuse. Current public policy and social norms seek to reduce the potential harmful impact of waste materials, discourage simple disposal, and promote the reuse and recycling of as many scrap tires as is technically and economically feasible. There are significant markets for scrap tires. At present, the three largest market segments for scrap tires are fuel, ground rubber for asphalt, and civil engineering. According to Blumenthal (1997), markets for use of scrap tires are expanding from less than 11% of annual generation in 1990 to more than 75% in 1996. Greater use of scrap tires in landfill applications will aid substantially in increasing this market. There are several possible uses of scrap tire shreds in the construction of MSW landfill containment systems including leachate collection drainage layer, operations layer, alternative daily cover, landfill gas collection layer, and a foundation layer of the final cover system. Shredded tires have engineering properties, which are comparable to materials typically used for landfill operations. In 1995, about 12 million scrap tires were used for civil engineering application including landfill construction. (Blumenthal, 1997). Application of shredded tires in MSW landfills should increase in the future and, thus significantly contribute to the goal of re-using all of the annually generated scrap tires.
机译：如上所述，据估计，美国每年产生超过2.8亿个废轮胎。在这个数字中，估计有2.37亿个轮胎被丢弃，相当于约300万吨（272.1万吨）材料，或略少于MSW流的2％（Serumgard，1997年）。此外，美国目前废弃的汽车轮胎库存超过8亿只。因此，存在大量可用于重用的资源。当前的公共政策和社会规范力求减少废料的潜在有害影响，不鼓励简单处置，并在技术和经济上可行的情况下促进尽可能多的废轮胎的再利用和回收。废轮胎有很大的市场。目前，废轮胎的三个最大细分市场是燃料，沥青地面橡胶和土木工程。根据Blumenthal（1997）的说法，废轮胎的使用市场正从1990年的不到11％增长到1996年的75％以上。在填埋场应用中更多地使用废轮胎将大大有助于增加这个市场。垃圾碎片在城市固体垃圾掩埋系统的构造中有多种用途，包括渗滤液收集排水层，操作层，替代性日常覆盖，垃圾填埋气体收集层以及最终覆盖系统的基础层。切碎的轮胎具有工程性能，可与通常用于垃圾填埋场的材料相比。 1995年，大约有1200万废轮胎用于土木工程应用，包括垃圾填埋场建设。 （Blumenthal，1997）。未来，在城市固体垃圾填埋场中使用碎轮胎的情况应会增加，从而为实现每年产生的所有废旧轮胎的再利用的目标做出重大贡献。

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