高锰酸钾对土壤岩土力学性质的影响

IF 0.6 Q3 ENGINEERING, MULTIDISCIPLINARY

Acta Polytechnica Pub Date : 2023-09-05 DOI:10.14311/ap.2023.63.0260

Samuel Akinlabi Ola, Osemudiamen Ayoposi Usifoh, Emeka Segun Nnochiri

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引用次数: 0

摘要

在尼日利亚，高锰酸钾(KMnO4)被用作化学氧化剂，用于从受污染的土壤和地下水中去除碳氢化合物，但没有关于KMnO4对土壤岩土特性影响的资料。在红土和高岭土中分别添加KMnO4，浓度分别为干土质量的0%、2%、5%和10%。然后对每种混合料进行粒度分析、阿特伯格极限、比重、压实和加州承载比(CBR)测试。结果表明，当KMnO4浓度从0%增加到10%时，两种土壤的最大干密度(MDD)、最佳含水量(OMC)和未浸水和浸水CBR值普遍降低。总之，该研究表明，尽管KMnO4对污染场地的修复效果很好，但它会降低土壤的岩土力学特性，因此不应该单独使用(不使用其他添加剂)来稳定土壤。

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The effects of potassium permanganate on the geotechnical properties of soils

In Nigeria, potassium permanganate (KMnO4) is used as a chemical oxidant in the removal of hydrocarbons from polluted soils and groundwater, but there is no information on the effects of KMnO4 on the geotechnical properties of the soil. In this study, KMnO4 was added separately to lateritic soil and kaolin at concentrations of 0 %, 2 %, 5% and 10 % by weight of dry soil. Each of the mixes was then subjected to grain size analysis, Atterberg limits, specific gravity, compaction, and California bearing ratio (CBR) tests. The results showed that an increase in KMnO4 from 0 % to 10 % generally decreased the values of maximum dry density (MDD), optimum moisture content (OMC) and both unsoaked and soaked CBR for both soils. In conclusion, the study shows that although KMnO4 is excellent for the remediation of contaminated sites, it reduces the geotechnical properties of soil and therefore should not be used alone (without the use of other additives) for soil stabilisation.

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来源期刊

Acta Polytechnica ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

12.50%

发文量

审稿时长

24 weeks

期刊介绍： Acta Polytechnica is a scientific journal published by CTU in Prague. The main title, Acta Polytechnica, is accompanied by the subtitle Journal of Advanced Engineering, which defines the scope of the journal more precisely - Acta Polytechnica covers a wide spectrum of engineering topics, physics and mathematics. Our aim is to be a high-quality multi-disciplinary journal publishing the results of basic research and also applied research. We place emphasis on the quality of all published papers. The journal should also serve as a bridge between basic research in natural sciences and applied research in all technical disciplines. The innovative research results published by young researchers or by postdoctoral fellows, and also the high-quality papers by researchers from the international scientific community, reflect the good position of CTU in the World University Rankings. We hope that you will ﬁnd our journal interesting, and that it will serve as a valuable source of scientiﬁc information.