盐土的压缩和保持水分的行为通过MICP与活性炭相结合改善了盐土的压缩和保持水分的行为
Ming-Shuai Zhang1, Chung-Fai Chiu1, Yi-Zhe Zhou1
1Department of Civil and Smart Construction Engineering, Shantou University, Shantou, 515063, Guangdong, China.
Scientific reports
|December 29, 2024
概括
微生物诱导的石沉 (MICP) 有效地改善了盐土的特性. 这种环保方法凝固了土壤颗粒,降低了压缩性,提高了水的保留力,即使在结解周期之后.
科学领域:
- 地质技术工程 地质技术工程
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 性土壤在中国存在重大工程挑战,原因是盐和溶解崩.
- 传统的盐土修复方法往往缺乏环境可持续性.
- 微生物诱导的石沉 (MICP) 为土壤改造提供了一个有希望的环保替代方案.
研究的目的:
- 评估MICP在改善盐土工程性质方面的有效性.
- 为了研究盐含量,活性炭和冷解周期对MICP修改的盐土的影响.
- 评估MICP对土壤压缩性和保持水分的影响.
主要方法:
- 实验室实验是在使用MICP技术修改的盐土上进行的.
- 该研究分析了不同盐度和活性碳含量的影响.
- 土壤样本经过冷解周期来模拟环境压力.
主要成果:
- MICP处理导致碳酸沉,凝固土壤颗粒并降低压缩能力.
- 沉的碳酸填充了土壤的孔隙,显著提高了保留水的能力.
- 添加活性炭放大了MICP反应,进一步提高了土壤的压缩性和保持水分.
结论:
- MICP是一种可行且有效的方法,可以改善盐土的工程性质.
- 生产的碳酸提供了结构完整性,减轻了盐和的破坏.
- 活性炭作为有益的添加剂,优化MICP过程以提高土壤性能.
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