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ORWARE – A simulation model for organic waste handling systems. Part 2: Case study and simulation results

机译:ORWARE –有机废物处理系统的仿真模型。第2部分:案例研究和仿真结果

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摘要

Results from simulations with the ORWARE model (ORganic WAste REsearch) are presented. The model was tested on a medium-sized Swedish city. The scenarios were planned to illustrate the consequences of different waste handling systems. The modelled processes for organic solid waste were; incineration, landfilling, anaerobic digestion and composting, for the wastewater they were sewage plant and source separation of urine. Each transport and treatment facility was modelled with respect to incoming waste. Each process model generates an energy balance, liquid and/or gaseous emissions and residual products as outputs. The simulation results show that source separation of solid waste, followed by biological treatment, is beneficial with respect to the recycling of phosphorus and environmental effects. The negative results for these systems are their energy balances. Source-separating human urine seems to be the only way to get a high degree of nitrogen recycling. The results also stress the importance of including liquid waste to get an overall picture of the transports needed to get the residues to arable land. Landfilling organic waste generates the largest negative environmental effect. A model description is presented in a companion paper.
机译:给出了使用ORWARE模型(有机废物研究)进行模拟的结果。该模型在瑞典中型城市中进行了测试。计划这些场景是为了说明不同废物处理系统的后果。对有机固体废物的建模过程是:焚化,垃圾填埋,厌氧消化和堆肥,这些废水是污水处理厂和尿液的源头分离。每个运输和处理设施都针对传入的废物建模。每个过程模型都会生成能量平衡,液体和/或气体排放以及残留产品作为输出。模拟结果表明,将固体废物进行源分离,然后进行生物处理,对于磷的循环利用和环境影响是有益的。这些系统的负面结果是它们的能量平衡。分离人尿似乎是获得高度氮循环的唯一途径。结果还强调了包括液体废物以全面了解将残余物运至耕地所需的运输的重要性。填埋有机废物产生最大的负面环境影响。随附的论文中提供了模型描述。

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