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首页> 外文期刊>Waste management & research >Impact of utilizing solid recovered fuel on the global warming potential of cement production and waste management system: A life cycle assessment approach
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Impact of utilizing solid recovered fuel on the global warming potential of cement production and waste management system: A life cycle assessment approach

机译：利用固体回收燃料对水泥生产和废物管理系统的全球变暖潜力的影响：生命周期评估方法

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Cement production is responsible for a significant share of global greenhouse gas (GHG) emissions. A potential option to reduce the cement production emissions is to use alternative fuels which can have also an impact on emissions from the waste management sector. This work investigates the change in global warming potential (GWP) of ordinary Portland cement (OPC) production and affected waste management systems when conventional fuels are partially replaced by solid recovered fuel (SRF) made from commercial and industrial waste (C&IW). A life cycle assessment (LCA) was conducted with a functional unit of 1 metric tonne of OPC production and treatment of 194 kg of C&IW. Data from an existing cement plant have been used, where the share of SRF from total fuel energy demand increased from 0% to 53% between 2007 and 2016. Four scenarios were established with varying waste treatment methods and SRF share in the thermal energy mix of cement production. It was found that GHG emissions decreased by 20% from 1036 kg carbon dioxide (CO_2), eq. (functional unit)~(-1) in Scenario 1 to 832 kg CO_2, eq. (functional unit)~(-1) in Scenario 3. Furthermore, it is possible to reach a reduction of 30% to 725 kg CO_2, eq. (functional unit)~(-1) in Scenario by increasing the share of SRF to 80%. In conclusion, significant GHG emissions reduction can be achieved by utilizing SRF in cement production. Especially in the middle-income and low-income countries where waste is dumped to the open landfills, emissions could be reduced without huge investments to waste incineration plants.
机译：水泥生产负责全球温室气体（GHG）排放量的大量份额。减少水泥生产排放的潜在选择是使用替代燃料，这些燃料也可以影响废物管理部门的排放。这项工作调查了普通波特兰水泥（OPC）生产和受影响的废物管理系统的全球变暖潜力（GWP）的变化，当常规燃料部分由商业和工业废物（C＆IW）制成的固体回收燃料（SRF）替换。使用寿命周期评估（LCA）用1公吨OPC生产和194公斤C＆IW的治疗方法进行的功能单元进行。已经使用了现有水泥厂的数据，其中SRF从总燃料能量需求的份额增加到2007年至2016年之间的0％至53％。建立了四种情况，并在热能组合中具有不同的废物处理方法和SRF份额。水泥生产。发现温室气体排放量从1036千克二氧化碳（CO_2），方程式下降20％。 （功能单元）〜（-1）在场景1至832 kg co_2，eq。 （功能单元）〜（-1）在场景3.此外，可以达到30％至725kg CO_2，方程式的减少。 （功能单位）〜（-1）在方案中，通过将SRF的份额增加到80％。总之，通过使用水泥生产中的SRF可以实现显着的温室气体排放。特别是在浪费到开放垃圾填埋场的中等收入和低收入国家，可以在没有巨大投资的情况下减少排放来浪费焚烧植物。

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