globalchange  > 过去全球变化的重建
DOI: 10.3390/su11133501
WOS记录号: WOS:000477051900007
论文题名:
LCA of Hospital Solid Waste Treatment Alternatives in a Developing Country: The Case of District Swat, Pakistan
作者: Ahmad, Riaz1; Liu, Gengyuan1,2; Santagata, Remo3; Casazza, Marco4; Xue, Jingyan1; Khan, Kifayatullah5; Nawab, Javed6; Ulgiati, Sergio1,2,3; Lega, Massimiliano4
通讯作者: Liu, Gengyuan ; Casazza, Marco
刊名: SUSTAINABILITY
ISSN: 2071-1050
出版年: 2019
卷: 11, 期:13
语种: 英语
英文关键词: hospital waste management ; government hospitals ; private hospitals ; environmental hazards ; medical waste ; hospital solid waste
WOS关键词: LIFE-CYCLE ASSESSMENT ; HEALTH-CARE WASTE ; TO-ENERGY TECHNOLOGIES ; ENVIRONMENTAL IMPACTS ; HAZARDOUS-WASTE ; MANAGEMENT ; INCINERATION ; PYROLYSIS ; DISPOSAL ; PERSPECTIVES
WOS学科分类: Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向: Science & Technology - Other Topics ; Environmental Sciences & Ecology
英文摘要:

Improper management of hospital waste leads to serious health and environmental issues, particularly in the case of developing countries, where, often, applied technologies are obsolete and there is a lack of compliance with respect to international best practices. The present study is designed to assess the environmental impacts of hospital waste management practices in Swath District, Pakistan. For this purpose, a life-cycle assessment (LCA) is applied for the estimation of different impacts of current and alternative hospital solid waste (HSW) treatment practices. Two scenarios are used to describe the current alternative practices (Scenario A and Scenario B), referring either to incineration or to direct landfilling of HSW without any sorting of collected materials. Conversely, Scenario C, which includes the use of pyrolysis and chemical disinfection, are considered as an up-to-date alternative, based on current international recommendations in this field. Prior to the analysis of impacts, due to the lack of available information, data were directly collected from both government and private hospitals in District Swat, involving measurements and a characterization of collected waste. In parallel, interviews were conducted, involving the hospitals' personnel. With respect to waste generation, government hospitals produce a larger amount of waste (74%) compared to private hospitals (24%). Poor regulatory indications and the absence of clear obligations for collection, disposal and management still represent a first obstacle to implement good practices. After defining the boundary of the system and the functional unit, according to standardized LCA practices, a life--cycle impact assessment (LCIA) was conducted, considering eight impact categories: human toxicity, freshwater eco-toxicity, marine aquatic eco-toxicity, terrestrial eco-toxicity, acidification potential, climate change, eutrophication and photochemical oxidation. The current practices (Scenario A and Scenario B) turned out to be the worst for all categories. In particular, the largest impact of all is recorded for human toxicity generated by incineration. In parallel, it must be considered that, currently, no recycling or reusing practices are implemented. Conversely, Scenario C (alternative up-to-date practices) would generate lower impacts. In detail, the highest value was recorded for marine aquatic ecotoxicity in relation to pyrolysis. Applying Scenario C, it would be possible to recover some materials, such as plastics, paper and sharps. In detail, considering the observed compositional characteristics, it would be possible to recover up to 78% of sharps and recycle 41% of plastic and paper from the general waste stream. Moreover, energy could be recovered from the pyrolysis process, generating a further benefit for the surrounding area. A lack of awareness, knowledge and infrastructures prevents the application of correct management practices, further degrading life and environmental conditions of this remote region of Pakistan. The huge difference in impacts between current practices and alternatives is demonstrated, showing a clear alternative for future management plans in this remote region and supporting future actions for local policymakers and hospital managers.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/141350
Appears in Collections:过去全球变化的重建

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作者单位: 1.Beijing Normal Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100875, Peoples R China
2.Beijing Engn Res Ctr Watershed Environm Restorat, Beijing 100875, Peoples R China
3.Parthenope Univ Naples, Dept Sci & Technol, I-80143 Naples, Italy
4.Parthenope Univ Naples, Dept Engn, I-80143 Naples, Italy
5.Univ Swat, Dept Environm & Conservat Sci, Swat 19130, Pakistan
6.Abdul Wali Khan Univ, Dept Environm Sci, Mardan 23200, Pakistan

Recommended Citation:
Ahmad, Riaz,Liu, Gengyuan,Santagata, Remo,et al. LCA of Hospital Solid Waste Treatment Alternatives in a Developing Country: The Case of District Swat, Pakistan[J]. SUSTAINABILITY,2019-01-01,11(13)
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