Identification of recycling potential of construction and demolition waste: challenges and opportunities in the Greater Dhaka area

IF 2.9 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Environmental Monitoring and Assessment Pub Date : 2025-05-10 DOI:10.1007/s10661-025-14081-8

Shama E. Haque, Nazmun Nahar, Nafisa N. Chowdhury, Lameesa Gazi-Khan, Tasriba K. Sayanno, Md. Abdul Muktadir, Md. Sazzadul Haque

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Abstract

In the past five decades, Dhaka city, the capital of Bangladesh experienced urbanization in an unprecedented manner. The city has grown spatially in all directions to accommodate the urban population that resulted in accelerated growth of the construction and demolished floor areas in Dhaka and its surroundings, commonly known as the Greater Dhaka. As a result, the quantities of construction and demolition waste have increased significantly within this region. Through an onsite field investigation of 21 construction and 12 demolition project sites in Greater Dhaka, the study identified the waste generation rate to be approximately 463.67 kg and 90.31 kg per m² floor area of demolition and construction projects, respectively. Projection based on this waste generation rate; the annual waste amount has been calculated for the eight districts of the Greater Dhaka region. The recycling potential identified through this study also estimated the economic benefits of the studied construction and demolition waste (CDW) materials for these eight districts for years 2022 to 2030. The findings of the present study are expected to assist the relevant stakeholders and policymakers to devise business development and legislative measures for the successful implementation of the sustainable waste management plan for the construction industry.

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确定建筑和拆除废物的回收潜力：大达卡地区的挑战和机遇

在过去的50年里，孟加拉国首都达卡以前所未有的速度经历了城市化进程。城市在空间上向各个方向发展，以容纳城市人口，这导致达卡及其周围地区的建筑面积和拆除面积加速增长，通常被称为大达卡。因此，该区域内的建筑和拆除废物的数量大大增加。通过对大达卡21个建筑工地和12个拆除工地的实地调查，研究确定拆除和建设项目的废物产生率分别约为每平方米建筑面积463.67千克和90.31千克。根据废物产生率作出的预测；计算了大达卡地区八个区的年废物量。通过这项研究确定的回收潜力，亦估算了所研究的拆建废物在2022年至2030年期间为这八个地区带来的经济效益。本研究的结果可协助有关持份者和政策制定者制订业务发展和立法措施，使建造业成功推行可持续废物管理计划。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Monitoring and Assessment 环境科学-环境科学

CiteScore

4.70

自引率

6.70%

发文量

1000

审稿时长

7.3 months

期刊介绍： Environmental Monitoring and Assessment emphasizes technical developments and data arising from environmental monitoring and assessment, the use of scientific principles in the design of monitoring systems at the local, regional and global scales, and the use of monitoring data in assessing the consequences of natural resource management actions and pollution risks to man and the environment.