Numerical Investigation of Heterogeneous Calcite Distributions in MICP Processes
文献类型：期刊论文
| 作者 | Wang, Lingxiang2; Chu, Yajie2; Wang, Xuerui3; Pan, Pengzhi1; Feng, Dianlei2 |
| 刊名 | MINERALS
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 14期号:10页码:20 |
| 关键词 | MICP heterogeneous porous media calcite distribution reactive mass transport injection strategy |
| DOI | 10.3390/min14100999 |
| 英文摘要 | Microbially induced calcite precipitation (MICP) is a sustainable and environmentally friendly technology with applications in soil stabilization, concrete crack repair, and wastewater treatment. This study presents an improved Darcy-scale numerical model to simulate the MICP processes in heterogeneous porous media. It focuses on the effects of porosity heterogeneity, characterized by average porosity and correlation length, as well as injection strategies. Both average porosity and correlation length are critical factors influencing mass transport and calcite distribution during MICP treatment. An increase in average porosity leads to significant reductions in transport distance and total calcite mass. Notably, in the case of low averaged porosity, a larger correlation length results in more heterogeneous calcite distributions. However, there exists an upper threshold value of the initial averaged porosity (phi 0=0.45) above which the heterogeneity of the calcite does not present clear dependence on the correlation length. Additionally, injection strategies significantly impact the consolidation effects. Compared to continuous injection, using the phased injection strategy can greatly improve the precipitated calcite area and mass due to its high utility and the efficiency of reactants. |
| 资助项目 | The Fundamental Research Funds for the Central Universities in China and the National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities in China[42207198] ; National Natural Science Foundation of China |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001343141600001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42987]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Feng, Dianlei |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Tongji Univ, Coll Civil Engn, Dept Hydraul Engn, Shanghai 200092, Peoples R China 3.Gesell Anlagen & Reaktorsicherheit GRS, Theodor Heuss Str 4, D-38122 Braunschweig, Germany |
| 推荐引用方式 GB/T 7714 | Wang, Lingxiang,Chu, Yajie,Wang, Xuerui,et al. Numerical Investigation of Heterogeneous Calcite Distributions in MICP Processes[J]. MINERALS,2024,14(10):20. |
| APA | Wang, Lingxiang,Chu, Yajie,Wang, Xuerui,Pan, Pengzhi,&Feng, Dianlei.(2024).Numerical Investigation of Heterogeneous Calcite Distributions in MICP Processes.MINERALS,14(10),20. |
| MLA | Wang, Lingxiang,et al."Numerical Investigation of Heterogeneous Calcite Distributions in MICP Processes".MINERALS 14.10(2024):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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