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Dust stabilization using biological method against wind erosion
Arabian Journal of Geosciences ( IF 1.827 ) Pub Date : 2021-07-29 , DOI: 10.1007/s12517-021-07775-z
Seyed Mohammad Aletayeb 1 , Morteza Jiryaei Sharahi 1 , Abdolreza Karimi 1
Affiliation  

In areas with relatively warm and dry climates, dust and sandstorms are important problems influencing the health of people and daily activities. In this study, biological stabilization is investigated as a method to prevent erosion of fine soil particles by the wind as a fine dust that is widely distributed in the atmosphere. For this purpose, 3 volumes of bacterial and cementation solutions, 10, 15, and 20 ml, were sprayed on the surface of soil samples. Treated samples were cured for 1, 4, 7, 14, and 28 days in the laboratory. In this study, Sporosarcina pasteurii bacteria formerly known as Bacillus pasteurii was used as the bio-agent. A wind tunnel was then used as apparatus to measure the resistance of the stabilized samples compared to untreated soil. Results showed an increase from roughly 350% on the first day to 2400% on the 28th day, in resistance against wind erosion for the stabilized samples compared to untreated samples, and therefore, biological stabilization is an appropriate alternative to improve soil resistance against wind erosion and reduce dust. The soil used in this study was sampled from Khuzestan province, which is the most important province involved in the issue of fine dust in Iran.



中文翻译:

使用生物方法稳定灰尘以防止风蚀

在气候相对温暖干燥的地区,沙尘暴是影响人们健康和日常活动的重要问题。在这项研究中,生物稳定被研究作为一种防止细土壤颗粒被风侵蚀的方法,这种细颗粒在大气中广泛分布。为此,将 3 倍体积的细菌和胶结溶液(10、15 和 20 毫升)喷洒在土壤样品表面。处理后的样品在实验室中固化 1、4、7、14 和 28 天。在这项研究中,Sporosarcina巴斯德菌前身为芽孢杆菌巴斯德用作生物制剂。然后使用风洞作为测量稳定样品与未处理土壤相比的电阻的装置。结果表明,与未经处理的样品相比,稳定样品的抗风蚀能力从第一天的大约 350% 增加到第 28 天的 2400%,因此,生物稳定是提高土壤抗风蚀能力的合适替代方案并减少灰尘。本研究中使用的土壤采样自胡齐斯坦省,该省是伊朗涉及细尘问题的最重要省份。

更新日期:2021-07-29
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