中国磷石膏利用的生命周期环境和经济评估

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2024-10-05 DOI:10.1016/j.resconrec.2024.107938

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引用次数: 0

摘要

磷石膏（PG）是磷肥工业的副产品，由于其产量巨大、成分复杂，给环境带来了巨大挑战。磷石膏的高效和大规模利用仍然是一个全球性问题。中国作为世界上最大的 PG 生产国和排放国，面临着利用率相对较低的问题，迫切需要有效的管理策略。本研究采用生命周期评估（LCA）方法，对中国主要 PG 处理途径的环境和经济效益进行了评估。结果显示，三种利用技术都有显著的效益，其中硫酸联产水泥（PSC）的环境优势最大，β-建筑石膏（PBG）的经济效益最高。情景分析表明，PSC 是实现环境和经济双重收益的最有效战略，是大规模实施的有力候选方案。这些研究结果为中国未来的石膏管理战略提供了重要启示。

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Life cycle environmental and economic assessment of Phosphogypsum utilization in China

Phosphogypsum (PG), a byproduct of the phosphate fertilizer industry, poses significant environmental challenges due to its huge production and complex composition. Efficient and large-scale utilization of PG remains a global issue. China, as the world's largest producer and discharger of PG, faces a relatively low utilization rate and urgently needs effective management strategies. This study evaluates the environmental and economic performance of the main PG treatment pathways in China using life cycle assessment (LCA). The results reveal notable benefits for all three utilization technologies, with sulfuric acid co-production cement (PSC) offering the greatest environmental advantages and β-building gypsum (PBG) providing the highest economic benefits. Scenario analysis suggests PSC as the most effective strategy for achieving dual environmental and economic gains, making it a strong candidate for large-scale implementation. These findings provide critical insights for future PG management strategies in China.

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.