扎布尔工业城废水处理系统的生命周期分析：环境影响、能源需求和温室气体排放

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Integrated Environmental Assessment and Management Pub Date : 2024-05-02 DOI:10.1002/ieam.4942

Simineh Hootmirdoosti, Narjes Okati, Mohsen Nowrouzi, Malihe Erfani

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引用次数: 0

摘要

使用有效的环境修复设施是水资源再生和应对缺水挑战的重要战略。本研究的目的是采用生命周期评估法对扎布尔工业城的废水处理系统（WWTS）进行评估。每年收集 1 立方米废水处理功能单位的原始数据，并采用 ReCiPe、累积能源需求和政府间气候变化专门委员会 (IPCC) 的方法进行分析。WWTS 性能对环境的主要影响是人类致癌毒性（50%）、淡水生态毒性（13%）和海洋生态毒性（10%）。污泥产生过程中的重金属排放，以及天然气和石油的消耗，尤其是发电消耗，是造成环境负担的关键因素。此外，化学需氧量（COD）（56.34%）、耗电量（15.47%）和总磷（4.49%）也严重威胁着人类健康和生态系统，而化石燃料消耗对资源的影响最大。不可再生的化石燃料，即天然气（47.2%）和石油（38.27%），在该系统的能源供应中占主导地位。政府间气候变化专门委员会（IPCC）的分析表明，发电过程中会排放二氧化碳（86.77%）和甲烷（12.16%）。根据敏感性分析的结果，化学需氧量每增加 10%，所有影响都会增加 1.40% 至 6.83%。鉴于伊朗的地理位置和扎布尔独特的气候条件，利用太阳能和风能为 WWTS 供电可大大减轻其环境负担。本研究为评估 WWTS 的环境影响、能源消耗和碳足迹提供了一个综合框架。Integr Environ Assess Manag 2024;00:1-12.© 2024 SETAC

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Life cycle analysis of the wastewater treatment system in Zabol Industrial Town: Environmental impacts, energy demand, and greenhouse gas emissions

Use of effective environmental remediation facilities represents a crucial strategy for water reclamation and addressing the challenges of water scarcity. The objective of this study was to assess the wastewater treatment system (WWTS) in Zabol Industrial Town using the life cycle assessment method. Primary data, collected annually for a functional unit of 1 m³ of wastewater treatment, were subjected to analysis using the ReCiPe, Cumulative Energy Demand, and Intergovernmental Panel on Climate Change (IPCC) methods. Human carcinogenic toxicity (50%), freshwater ecotoxicity (13%), and marine ecotoxicity (10%) were the primary environmental impacts due to the WWTS performance. The discharge of heavy metals during sludge generation, coupled with the consumption of natural gas and oil, especially for electricity production, were pivotal factors contributing to the environmental burdens observed. Furthermore, chemical oxygen demand (COD) (56.34%), electricity consumption (>15.47%), and total phosphorous (>4.49%) significantly threatened human health and ecosystem categories, while fossil fuel consumption had the greatest impact on resources. Nonrenewable fossil fuels, namely, natural gas (47.2%) and oil (38.27%), played a predominant role in the energy provision of the system. The IPCC analysis depicted the emissions of CO₂ (86.77%) and CH₄ (12.16%) stemming from the process of electricity generation. Based on the outcomes of the sensitivity analysis, implementing a 10% increase in COD yielded an increment in all impacts within the range of 1.40% to 6.83%. Given Iran's geographic location and the unique climatic conditions in Zabul, use of solar and wind energy to energize the WWTS can substantially alleviate its environmental burdens. This study presents a comprehensive framework for evaluating the environmental impact, energy consumption, and carbon footprint of a WWTS. Integr Environ Assess Manag 2024;20:1747–1758. © 2024 SETAC

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来源期刊

Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY

CiteScore

5.90

自引率

6.50%

发文量

156

期刊介绍： Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas: Science-informed regulation, policy, and decision making Health and ecological risk and impact assessment Restoration and management of damaged ecosystems Sustaining ecosystems Managing large-scale environmental change Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society: Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.