A critical review of biomineralization in environmental geotechnics: Applications, trends, and perspectives

Biogeotechnics Pub Date : 2023-03-01 DOI:10.1016/j.bgtech.2023.100003

Yu Zhang , Xinlei Hu , Yijie Wang , Ningjun Jiang

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引用次数: 15

Abstract

In this review paper, the applications of biomineralization in environmental geotechnics are analyzed. Three environmental geotechnics scenarios, namely heavy metal contamination immobilization and removal, waste and CO₂ containment, and recycled use of industrial byproducts, are discussed and evaluated regarding current trends and prospects. The biomineralization process, specifically the Microbially Induced Carbonate Precipitation (MICP) technology, is an effective solution for immobilizing heavy metals through co-precipitation with calcium carbonate, with successful results in cleaning up contaminated soils. The nature of biomineralization enhances earth material strength and decreases permeability, making it suitable for waste and CO₂ containment. Additionally, using industrial byproducts in MICP technology can improve the physical, mechanical, and hydraulic properties of earth materials, making it a potential solution for efficient waste utilization. In conclusion, the applications of biomineralization in environmental geotechnics hold great promise for solving various environmental problems. However, further research is needed to better understand the control and consistency of biomineralization processes, the durability of biominerals, the scale of applications, and environmental concerns.

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环境岩土工程中生物矿化的评述:应用、趋势和前景

本文分析了生物矿化在环境岩土工程中的应用。讨论并评估了三种环境岩土工程方案，即重金属污染的固定和去除、废物和二氧化碳的控制以及工业副产品的回收利用，以了解当前的趋势和前景。生物矿化过程，特别是微生物诱导碳酸盐沉淀（MICP）技术，是通过与碳酸钙共沉淀固定重金属的有效解决方案，在清理污染土壤方面取得了成功。生物矿化的性质提高了土壤材料的强度并降低了渗透性，使其适合于废物和二氧化碳的控制。此外，在MICP技术中使用工业副产品可以改善土壤材料的物理、机械和水力性能，使其成为高效废物利用的潜在解决方案。总之，生物矿化在环境岩土工程中的应用对解决各种环境问题具有很大的前景。然而，还需要进一步的研究来更好地了解生物矿化过程的控制和一致性、生物矿物的耐久性、应用规模和环境问题。

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

Biogeotechnics

CiteScore

3.00

自引率

0.00%

发文量