Kang Seong Seung, Park Kyungho, Kim Daehyeon
Department of Civil Engineering, Chosun University, Gwangju 501-759, Korea.
Materials (Basel). 2014 Oct 23;7(10):7157-7172. doi: 10.3390/ma7107157.
This study aims to analyze contamination with the use of soil reclaimed with ferronickel slag (FNS). In order to investigate any contamination due to FNS disposal, soils were collected from three sites. The contamination analysis was done on these samples through a series of laboratory tests. Furthermore, laboratory tests simulating field conditions were performed in a soil chamber. In the lab test, three leaching agents, namely fresh water, acidic water and seawater, were used. The soil samples used were sand and silt with a relative density of 40% and a compaction ratio of 90%, respectively. The pH of the effluent discharged from the experimental soil chamber was also analyzed. After leaching, soil samples were subjected to analysis. The results showed that pH was higher in the silt than in the sand. The results of the laboratory tests exhibited that leaching of hazardous elements from FNS is limited, so that it can be used as a substitute for natural aggregate in the cement industry or construction applications.
本研究旨在分析使用镍铁渣（FNS）复垦土壤时的污染情况。为调查因处置FNS而产生的任何污染，从三个地点采集了土壤样本。通过一系列实验室测试对这些样本进行了污染分析。此外，在土壤试验箱中进行了模拟现场条件的实验室测试。在实验室测试中，使用了三种浸出剂，即淡水、酸性水和海水。所使用的土壤样本分别为相对密度为40%、压实率为90%的沙子和淤泥。还分析了从实验土壤试验箱排出的废水的pH值。浸出后，对土壤样本进行了分析。结果表明，淤泥中的pH值高于沙子中的pH值。实验室测试结果表明，FNS中有害元素的浸出是有限的，因此它可以用作水泥行业或建筑应用中天然骨料的替代品。
