使用丰富的葡萄作为一种新的丰富废弃物,改善土壤微生物
Tahereh Kariminia1, Mohammad A Rowshanzamir1, S Mahdi Abtahi2
1Department of Civil Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
Scientific reports
|December 14, 2023
概括
本研究介绍了一种具有成本效益的土壤改善方法,在微生物诱导的石沉中使用维纳斯,一种废弃的生物聚合物. 新的介质显著降低了成本,并提高了可持续建筑应用的土壤剪切强度.
科学领域:
- 地质技术工程 地质技术工程
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 微生物诱导的石沉 (MICP) 是改善土壤的一个有前途的技术.
- 传统的MICP培养基通常很昂贵,限制了广泛的应用.
- 乙醇生产中的废物生物聚合物Vinasse为开发可持续和成本有效的替代品提供了机会.
研究的目的:
- 调查使用维纳斯作为MICP新型培养基的主要成分.
- 为了优化Sporosarcina pasteurii的细菌生长和尿酶活性,使用缩维纳斯.
- 评估开发的媒介对可持续土壤改善和土壤稳定性的有效性.
主要方法:
- 维纳斯富含尿素,酸或乳清蛋白缩物以支持细菌生长.
- 塔古奇实验设计 (TDOE) 用于优化维纳斯和尿素度.
- 在松散和生物处理的沙子上进行了直接剪切测试,以评估土壤的剪切强度.
主要成果:
- 与营养相比,优化的维纳斯尿素介质实现了显著的成本降低,从每升0.455美元降至0.005美元.
- 生物处理的沙子表现出增强的剪切强度,摩擦角度增加2.5度,凝聚力为20.7kPa.
- 维纳斯的使用通过回收废品和减少环境污染,促进循环经济.
结论:
- 丰富葡萄酒为基于MICP的土壤改善提供了一个非常具有成本效益和可持续的替代传统培养媒介.
- 这种方法显著提高了松散土壤的机械性能,使其适合各种建筑项目.
- 该研究表明,在地面工程的背景下,废物利用和减少污染的可行策略.
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