Municipal solid waste landfill age and refuse-derived fuel

Ing-Jia Chiou; Ching-Ho Chen

摘要

Landfill sites are hard to obtain in Taiwan. Municipal solid waste (MSW) in the closed landfill sites has high combustible content and calorific value (CV). Therefore, activating the closed landfill sites as municipal mine sites to prolong their service life will promote a sustainable environment. This study transforms combustibles from the closed municipal landfill sites of different landfill ages (LAs) into refuse-derived fuel (RDF) through pretreatment and squeeze forming equipment, so to investigate the characteristics of the MSW of different LAs, and the manufacturing conditions and firing behaviour of RDF. The results indicate that the proportion of the combustibles in MSW declines as the LA grows, and therefore the proportions of both incombustible materials and soil and debris correspondingly increased. The LA of the MSW is thus negatively correlated with the CV. The MSW at the LA of 10 years still has high potential as fuel material. The fixed carbon initiation temperatures (i.e. ignition temperatures) of combustibles of the MSW at the LAs of 1 year, 5 years and l0years are 259°C, 256°C and 245°C, respectively. The CV and flame temperature of the RDF increase slightly with the increasing squeeze temperature (ST) at 100-120°C, but it will decrease when the ST reaches 130°C. Therefore, this study recommends the squeeze pressure of the RDF as 41.65 ± 8.24 kg cm~(-2), ST 110°C and combustible size 10-20mm.

机译：垃圾填埋场难以在台湾获得。封闭垃圾填埋场中的市政固体废物（MSW）具有高可燃含量和热值（CV）。因此，激活封闭的垃圾填埋场，作为市政矿地铁站，以延长其使用寿命将促进可持续的环境。本研究通过预处理和挤压成型设备将不同垃圾填埋场（LAS）的封闭式市政垃圾填埋场（LAS）的垃圾填埋场（RDF）转变为垃圾衍生燃料（RDF），以研究不同LAS的MSW的特点，以及制造条件和烧制RDF的行为。结果表明，随着LA的增长，MSW中的可燃物比例下降，因此，不可燃材料和土壤和碎片的比例相应地增加。因此，MSW的La与CV负相关。 10年的MSW仍然具有高潜力作为燃料材料。 1年，5年和L0EERS的MSW的固定碳启动温度（即点火温度）分别为259°C，256°C和245°C。 RDF的CV和火焰温度随着100-120℃的增加而略微增加，但在ST达到130℃时，它将降低。因此，本研究建议挤压RDF的压力为41.65±8.24kg cm〜（-2），st110℃，可燃尺寸10-20mm。

Municipal solid waste landfill age and refuse-derived fuel

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