在小岛屿发展中国家实现可持续废物管理:马尔代夫环境下废物转化为能源的综合解决方案

IF 6.1 2区 环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL
Yao Wang, Alejandro Ruiz-Acevedo, Eemaan Rameez, Vijaya Raghavan, Abid Hussain, Xunchang Fei
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引用次数: 0

摘要

有效的废物管理是马尔代夫等小岛屿发展中国家面临的一项重大挑战,因为可用土地有限。马尔代夫是这些问题的典型例子,它是地理上最分散的国家之一,人口分布不均匀,分布在许多岛屿上,大小和人口密度差别很大。本研究深入分析了马尔代夫不同地区与自然和社会经济背景相关的独特废物管理实践。数据显示,马尔代夫是小岛屿发展中国家中人口密度和人均废物产生量最高的国家之一,尽管其土地面积小,人均国内生产总值中等。人口稠密的首都马累(仅5.8平方公里的面积产生了63%的废物)与194个分散的外岛(采用临时废物管理措施)之间存在巨大差异。考虑到马累密集的人口和高热量的垃圾,焚烧可以产生高达30吉瓦/年的能源,甚至可以使马尔代夫的可再生能源供应增加200%。相比之下,分散的厌氧消化为外岛提供了一个最佳解决方案,可以减少废物量,同时为当地家庭的日常烹饪提供超过40%-100%的能源供应。这项及时的研究为设计针对具体情况的废物转化为能源系统和针对马尔代夫不同地区的综合废物政策提供了宝贵的见解。所提出的框架也可以指导其他面临与马尔代夫类似挑战的小岛屿发展中国家制定可持续的、无害生态的废物管理战略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Toward sustainable waste management in small islands developing states: integrated waste-to-energy solutions in Maldives context

Toward sustainable waste management in small islands developing states: integrated waste-to-energy solutions in Maldives context

Effective waste management is a major challenge for Small Island Developing States (SIDS) like Maldives due to limited land availability. Maldives exemplifies these issues as one of the most geographically dispersed countries, with a population unevenly distributed across numerous islands varying greatly in size and population density. This study provides an in-depth analysis of the unique waste management practices across different regions of Maldives in relation to its natural and socioeconomic context. Data shows Maldives has one of the highest population density and per capita waste generation among SIDS, despite its small land area and medium GDP per capita. Large disparities exist between the densely populated capital Male’ with only 5.8 km2 area generating 63% of waste and the ∼194 scattered outer islands with ad hoc waste management practices. Given Male’s dense population and high calorific waste, incineration could generate up to ∼30 GW/a energy and even increase Maldives’ renewable energy supply by 200%. In contrast, decentralized anaerobic digestion presents an optimal solution for outer islands to reduce waste volume while providing over 40%–100% energy supply for daily cooking in local families. This timely study delivers valuable insights into designing context-specific waste-to-energy systems and integrated waste policies tailored to Maldives’ distinct regions. The framework presented can also guide other SIDS facing similar challenges as Maldives in establishing sustainable, ecologically sound waste management strategies.

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来源期刊
Frontiers of Environmental Science & Engineering
Frontiers of Environmental Science & Engineering ENGINEERING, ENVIRONMENTAL-ENVIRONMENTAL SCIENCES
CiteScore
10.90
自引率
12.50%
发文量
988
审稿时长
6.1 months
期刊介绍: Frontiers of Environmental Science & Engineering (FESE) is an international journal for researchers interested in a wide range of environmental disciplines. The journal''s aim is to advance and disseminate knowledge in all main branches of environmental science & engineering. The journal emphasizes papers in developing fields, as well as papers showing the interaction between environmental disciplines and other disciplines. FESE is a bi-monthly journal. Its peer-reviewed contents consist of a broad blend of reviews, research papers, policy analyses, short communications, and opinions. Nonscheduled “special issue” and "hot topic", including a review article followed by a couple of related research articles, are organized to publish novel contributions and breaking results on all aspects of environmental field.
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