土壤密度对生物矿物化的影响,使用EICP和MICP技术巩固土壤站点
Jie Li1, Feiqing Zhu1, Fasi Wu1
1National Research Center for Conservation of Ancient Wall Paintings and Earthen Sites, Dunhuang Academy, Dunhuang, 736200, Gansu, PR China; Gansu Provincial Research Center for Conservation of Cultural Heritage, Dunhuang, 736200, PR China; Key Scientific Research Base of Conversation for Ancient Wall Paintings of National Cultural Heritage Administration, Dunhuang, 736200, Gansu, PR China.
Journal of environmental management
|June 8, 2024
概括
使用酶诱导碳酸沉 (EICP) 和微生物诱导碳酸沉 (MICP) 的土壤稳定是有效的. 较高的土壤密度增强生物矿物化,MICP在巩固土壤遗产遗址方面表现出卓越的结果.
科学领域:
- 地质技术工程 地质技术工程
- 生物矿物化 生物矿物化
- 材料科学 材料科学 材料科学
背景情况:
- 土壤稳定对于历史土壤遗址至关重要.
- 酶诱导碳酸沉 (EICP) 和微生物诱导碳酸沉 (MICP) 是新兴的生物矿物化技术.
- 土壤密度对这些技术的影响,特别是在遗产保护方面,需要进一步研究.
研究的目的:
- 为了比较EICP和MICP的土壤巩固效应.
- 研究不同土壤密度对生物矿物化的影响.
- 评估这些方法是否适用于保护地球遗产遗址.
主要方法:
- 用苏阳古城的土壤准备了密度为1.5,1.6和1.7g/cm3的圆柱形土壤样本.
- 用EICP和MICP技术对样品进行处理.
- 测量了碳酸的产量,波速和不受限制的压力强度,以评估整合.
主要成果:
- 在所有测试的土壤密度中,生物水泥增加了碳酸的产量.
- 较高的土壤密度 (高达1.7g/cm3) 导致碳酸的产生更大.
- 与EICP相比,微生物诱导的碳酸沉 (MICP) 在碳酸生产,波速和压力强度上产生了更显著的增加.
结论:
- 生物矿物化技术,特别是MICP,对于土壤遗址的现场巩固是有效的.
- 土壤密度是影响生物矿物化对土壤稳定功效的关键因素.
- MICP提供了一种有希望的,可持续的方法来加强土壤遗产结构,显示出与EICP相比的优势.
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