Microbial-induced mineral carbonation: A promising approach for improving Carbon sequestration and performance of steel slag for its engineering utilization

IF 8.2 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Developments in the Built Environment Pub Date : 2025-03-01 Epub Date: 2025-01-24 DOI:10.1016/j.dibe.2025.100615

Jue Li , Qingmeng Hou , Xinqiang Zhang , Xiaobin Zhang

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Abstract

Steel slag, a by-product of steel production, accumulates in large quantities and poses significant environmental risks due to heavy metal ion content. Therefore, using pre-treated steel slag in construction offers a sustainable solution. This review analyzed microbial-induced mineral carbonation (MIMC) as a promising approach for steel slag utilization, highlighting the enhanced principles and influential factors of steel slag carbonation. MIMC achieves superior carbonation efficiency (up to 90–95%) under mild conditions, ensuring environmental sustainability, safety, and cost-effectiveness. Key factors include microbial characteristics, steel slag properties, and process conditions. The review discussed how MIMC can enhance the properties of carbonated steel slag by modifying mineralogy and microstructure, improving physical and mechanical attributes, and optimizing environmental performance. Moreover, the application of MIMC-treated steel slag in engineering construction was examined. Nonetheless, further research is essential to overcome challenges, fully comprehend the mechanisms and environmental impacts of MIMC, and advance sustainable development in the steel industry.

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微生物诱导的矿物碳化：改善钢渣固碳性能和工程利用的一种有前景的方法

钢渣是钢铁生产的副产物，其大量积累，重金属离子含量高，给环境带来重大风险。因此，在建筑中使用预处理钢渣是一种可持续的解决方案。本文分析了微生物诱导矿物碳化（MIMC）是一种很有前途的钢渣利用方法，重点介绍了钢渣碳化的强化原理和影响因素。在温和的条件下，MIMC实现了优异的碳化效率（高达90-95%），确保了环境的可持续性、安全性和成本效益。关键因素包括微生物特性、钢渣特性和工艺条件。本文从改变钢渣的矿物学和微观结构、改善钢渣的物理力学性能、优化钢渣的环境性能等方面对复合材料的性能进行了探讨。并对经mimc处理的钢渣在工程建设中的应用进行了探讨。尽管如此，为了克服挑战，充分了解MIMC的机制和环境影响，促进钢铁工业的可持续发展，进一步的研究是必不可少的。

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来源期刊

Developments in the Built Environment Multiple-

CiteScore

7.40

自引率

1.20%

发文量

审稿时长

22 days

期刊介绍： Developments in the Built Environment (DIBE) is a recently established peer-reviewed gold open access journal, ensuring that all accepted articles are permanently and freely accessible. Focused on civil engineering and the built environment, DIBE publishes original papers and short communications. Encompassing topics such as construction materials and building sustainability, the journal adopts a holistic approach with the aim of benefiting the community.