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Properties of solid fuel briquettes produced from rejected material of municipal waste composting

机译：由城市废物堆肥的被拒绝材料生产的固体燃料压块的性质

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This research was conducted to determine the optimum mixing ratio for solid fuel briquettes produced by extrusion of rejected material of municipal waste composting char (MWCC) and sawdust char (SC). Experiments were performed on briquettes made from various ratios of rejected material of MWCC to SC: 100:0, 80:20, 60:40, 50:50, 40:60 and 20:80 by weight. Slop waste (either 10 %, 15 % or 20 %wt) was added as a binder. The solid fuel briquettes were formed into cylindrical shapes 3.8 cm in external diameter, 1.3 cm in internal diameter and 15 cm in length. The briquettes were evaluated for the following properties: moisture, ash, volatile matter, fixed carbon, calorific value, sulfur, combustion calorific value, compressive strength, water resistance, and bulk density. The experimental results indicated that calorific value and combustion calorific value of the solid fuel briquettes increased with increasing ratios of sawdust char. Compressive strength, water resistance and bulk density of the solid fuel briquettes also increased, and depended both on increased ratios of sawdust char and on a higher percentage of binder. From the research results, it can be concluded that a MWCC to SC ratio of 20:80 with 20% slop waste was most suitable for production of solid fuel briquettes. This study demonstrates that the rejected material of municipal waste composting can be used as an alternative fuel for industrial use. This will not only promote the reuse of waste material for optimal benefit, but will also reduce the use of landfill space.
机译：本研究是为了确定最佳的混合用于通过城市垃圾拒绝材料的挤压产生的固体燃料块团堆肥炭（MWCC）和锯末炭（SC）的比率。 100：80:20 60:40 50:50，40:60和20:80（重量）0，，，实验是在从MWCC的拒绝材料的各种比率对SC制成团块进行。污水废物（或10％，15％或20％重量）中加入作为粘合剂。所述固体燃料块团进行了形成为圆柱形状3.8厘米外径，1.3厘米内径和长度为15公分。压块对下列性能进行了评价：水分，灰分，挥发分，固定碳，热值，硫，燃烧热值，抗压强度，耐水性，和堆积密度。实验结果表明在固体燃料块团随锯末炭的比例增加的该热值和燃烧的热值。压缩强度，耐水性和固体燃料团块的松密度也有所增加，并依赖于两者增加锯末炭的配比对粘合剂的比例较高。从研究结果，可以得出结论，一个MWCC至20:80，用20％污水废物SC比为最适合于生产固体燃料团块的。这项研究表明，城市垃圾堆肥的退料可作为工业用途的替代燃料。这不仅将促进废物材料的最佳利益的再利用，而且还会减少使用的垃圾填埋场空间。

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