PDF(Pubmed)
Abstract：
The naturally occurring biomineralization or microbially induced calcium carbonate (MICP) precipitation is gaining huge attention due to its widespread application in various fields of engineering. Microbial denitrification is one of the feasible metabolic pathways, in which the denitrifying microbes lead to precipitation of carbonate biomineral by their basic enzymatic and metabolic activities. This review article explains all the metabolic pathways and their mechanism involved in the MICP process in detail along with the benefits of using denitrification over other pathways during MICP implementation. The potential application of denitrification in building materials pertaining to soil reinforcement, bioconcrete, restoration of heritage structures and mitigating the soil pollution has been reviewed by addressing the finding and limitation of MICP treatment. This manuscript further sheds light on the challenges faced during upscaling, real field implementation and the need for future research in this path. The review concludes that although MICP via denitrification is an promising technique to employ it in building materials, a vast interdisciplinary research is still needed for the successful commercialization of this technique.
摘要：
天然存在的生物矿化或微生物诱导的碳酸钙（MICP）沉淀由于其在工程的各个领域的广泛应用而受到广泛关注。微生物脱氮是可行的代谢途径之一,其中反硝化微生物通过其基本的酶促和代谢活性导致碳酸盐生物矿物的沉淀。这篇综述文章详细解释了MICP过程中涉及的所有代谢途径及其机制，以及在MICP实施过程中使用反硝化优于其他途径的好处。反硝化在与土壤加固有关的建筑材料中的潜在应用，生物混凝土，通过解决MICP处理的发现和局限性，对恢复遗产结构和减轻土壤污染进行了审查。这份手稿进一步揭示了在升级过程中面临的挑战，实际的现场实施和未来研究的必要性。审查得出的结论是，尽管通过反硝化的MICP是将其用于建筑材料的有前途的技术，这项技术的成功商业化仍然需要大量的跨学科研究。
