A comprehensive approach for evaluating the feasibility of landfill rehabilitation should be developed to allow landfill owners to thoroughly examine the feasibility of a landfill soil remediation project in advance. With a view of contributing to the development of a common framework for the evaluation of landfill rehabilitation projects, this paper presents the results of a case study in which the issue of assessing the costs and benefits of rehabilitating the Beiyangqiao simple landfill is addressed. Based on the results of a survey, the cost-benefit assessment criteria and candidate remediation methods were selected. The alternatives included are, in-situ landfill closure; in-situ aerobic stabilization combined with in-situ screening and classification of recovered materials, transport for off-site disposal; and ectopic mining combined with recycling and incineration. Results show that the costs of landfill rehabilitation would range from 11.23 to 32.02 million United States dollars (USD). The key benefits would be land reclamation, heat, or electricity generation by incineration, and recycling of waste materials. The total benefits would range in value from 59.62 to 61.47 million USD. The net present value of the three scenarios would be positive and would range from 8.6 to 10.02 million USD. The results suggest that all three scenarios were positive. Nevertheless, "in-situ aerobic stabilization, in-situ screening, transportation, and off-site disposal" was most beneficial considering all parameters.Implications: This study applied a cost-benefit analysis model for assessing the economic feasibility of landfill rehabilitation, which is important to promoting landfill rehabilitation, and the market potential was assessed based on an actual project. The findings can be useful for providing landfill owners choices in a landfill rehabilitation project to achieve least quantified costs and overhead.

中文翻译：

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修复旧垃圾填埋场的成本效益分析：以武汉市北洋桥垃圾填埋场为例。

应该开发一种综合的方法来评估垃圾填埋场修复的可行性，以使垃圾填埋场所有者能够提前彻底检查垃圾填埋场土壤修复项目的可行性。为了有助于开发一个共同的垃圾填埋场修复项目评估框架，本文介绍了一个案例研究的结果，其中涉及评估修复北洋桥简单垃圾填埋场的成本和收益的问题。根据调查结果，选择了成本效益评估标准和候选补救方法。包括的替代方案包括原地填埋场封闭；原位有氧稳定与原位筛选和对回收材料进行分类，运输以进行异地处置；以及异位采矿与回收和焚化相结合。结果表明，填埋场修复的费用将在11.23到3,202万美元之间。主要好处是通过焚化和废料回收来进行土地开垦，供热或发电。总收益价值在59.62到6147万美元之间。这三种情况的净现值将为正，范围为8.6至1,002万美元。结果表明，所有三种情况均为阳性。然而，考虑到所有参数，“原位有氧稳定，原位筛选，运输和异地处置”最为有益。启示：本研究应用成本效益分析模型评估垃圾填埋场修复的经济可行性，这对促进垃圾填埋场修复非常重要，并且根据实际项目评估了市场潜力。这些发现对于在垃圾填埋场修复项目中为填埋场所有者提供选择，以实现最少的量化成本和间接费用非常有用。