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| Environmental Risk Study on Utilization of Ferro-Nickel Slag in Concrete |
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Received:March 05, 2020
Revised:March 11, 2020
Accepted:March 17, 2020
Published Online:August 17, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.09.019 |
| KeyWord:ferro-nickel slag; concrete; acid generation potential; extraction toxicity |
| Author | Institution |
| JU Li-ping |
矿冶科技集团有限公司 |
| CHEN Yan-hu |
永清科技股份有限公司 |
| zhu yi-bin |
矿冶科技集团有限公司 |
| CHEN Qian |
矿冶科技集团有限公司 |
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| Abstract: |
| From perspective of leaching mechanism and migration diffusion, acid generation potential, extraction toxicity of ferro-nickel slag and extraction toxicity(ET) of concrete products were studied. The results show that acid generation potential of ferro-nickel slag is non acid, which is not an acid emission source. Corrosion and ET are less than the limited value of national standard. In acid and alkaline environment, arsenic is leached from ferro-nickel slag concrete products, amount of which is less than standard for groundwater quality. The environmental risk of ferro-nickel slag is small, which can be directly used as one admixtures in concrete. |
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