估计因维修污水渠网而产生的温室气体排放量

IF 1.5 4区 工程技术 Q3 ENGINEERING, CIVIL Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2022-05-26 DOI:10.1680/jensu.21.00105
John R. Hacker, Sean Kerwin, B. Adey
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引用次数: 1

摘要

随着减少全球碳排放的努力愈演愈烈,基础设施管理人员正在重新思考如何规划和执行维护工作,以在不牺牲基础设施网络性能的情况下,最大限度地减少温室气体排放。本文解决了这一需求。这项工作包括对常见下水道维护干预措施产生的温室气体排放的估计的详细描述。这些详细的估计随后被用于预测大型污水管网三种维护方案的排放量。研究发现,维修排放主要来自材料,运输、交通拥堵和机械排放次之。目前的做法承诺在2035年之前实现最低排放,但没有解决老化的管网问题。因此,随着故障的迅速积累,网络状况和性能会进一步恶化。采用预防性维护与循环经济思维相结合被证明是改善网络状况和性能的有效解决方案,同时每年可节省6222吨二氧化碳。这些发现为基础设施管理者提供了一个详细的例子,说明循环经济思维在减少长期排放方面的潜力,以及对网络性能和资源利用所产生的预期权衡的见解。
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Estimating greenhouse gas emissions arising from the maintenance of sewer networks
As the push to reduce global carbon emissions intensifies, infrastructure managers are rethinking how maintenance is planned and executed to minimise greenhouse gases without sacrificing the performance of their infrastructure networks. This paper addresses this need. The work includes a detailed description of the estimation of greenhouse gas emissions that arise from common sewer maintenance interventions. These detailed estimates were subsequently used to project emissions from three maintenance scenarios for a large sewer network. The study found that emissions from maintenance mainly originate from materials, and that emissions from transport, traffic congestion, and machinery were of secondary importance. The current practice promises the lowest emissions up to 2035 but does not address the ageing pipe network. As a consequence, the network condition and performance deteriorate further as failures rapidly accumulate. Embracing preventive maintenance coupled with circular economy thinking is shown to be an effective solution to improve the network condition and performance, while at the same time offering savings of 6222 t carbon dioxide a year. These findings provide infrastructure managers with a detailed example of the potential of circular economy thinking in reducing long-term emissions along with insights into the expected trade- offs that arise with network performance and resource utilisation.
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来源期刊
CiteScore
3.70
自引率
16.70%
发文量
44
审稿时长
>12 weeks
期刊介绍: Engineering Sustainability provides a forum for sharing the latest thinking from research and practice, and increasingly is presenting the ''how to'' of engineering a resilient future. The journal features refereed papers and shorter articles relating to the pursuit and implementation of sustainability principles through engineering planning, design and application. The tensions between and integration of social, economic and environmental considerations within such schemes are of particular relevance. Methodologies for assessing sustainability, policy issues, education and corporate responsibility will also be included. The aims will be met primarily by providing papers and briefing notes (including case histories and best practice guidance) of use to decision-makers, practitioners, researchers and students.
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