Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry
Abstract Owing to the high mineralization and high treatment cost, Ordovician limestone water is often regarded as a mine wastewater. In order to make rational use of mine water with high mineralization and turn waste into treasure. In this work, the natural water quality of Ordovician mine water in...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2021-10-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000101701&tlng=en |
| _version_ | 1828130951501185024 |
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| author | TAO LI YU LIU YING GAO JUNWEI YANG |
| author_facet | TAO LI YU LIU YING GAO JUNWEI YANG |
| author_sort | TAO LI |
| collection | DOAJ |
| description | Abstract Owing to the high mineralization and high treatment cost, Ordovician limestone water is often regarded as a mine wastewater. In order to make rational use of mine water with high mineralization and turn waste into treasure. In this work, the natural water quality of Ordovician mine water in the Weibei coalfield had been tested, and the suspended matter and trace elements of Ordovician mine water in the selected deep detained area had been further tested. As a contrast, the water quality of Ordovician mine water after heating and concentration had been tested. The mechanical and hydraulic parameters of concentrated mine water-loess and concentrated mine water-cement slurry had been tested and compared with conventional slurry. The results showed characteristics of deep detained Ordovician limestone mine water is high salinity, certain suspended matters, limited special material and high permanent hardness. However, compressive strength of loess samples increased, while the permeability reduced. The initial setting-time of the modified material was short, while it showed an increased compressive strength. In practical terms, the quantity of grouting produced in engineering applications can be reduced by 16%, whereas the discharge of high-mineralized mine water can be decreased by about 40,000 m3/a. |
| first_indexed | 2024-04-11T16:40:12Z |
| format | Article |
| id | doaj.art-1d871d058faa4a1bb993d77ef80a9bce |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-04-11T16:40:12Z |
| publishDate | 2021-10-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-1d871d058faa4a1bb993d77ef80a9bce2022-12-22T04:13:41ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902021-10-0194110.1590/0001-3765202120190057Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting SlurryTAO LIhttps://orcid.org/0000-0001-9666-8627YU LIUhttps://orcid.org/0000-0001-9730-0816YING GAOhttps://orcid.org/0000-0002-0850-2174JUNWEI YANGhttps://orcid.org/0000-0002-4493-090XAbstract Owing to the high mineralization and high treatment cost, Ordovician limestone water is often regarded as a mine wastewater. In order to make rational use of mine water with high mineralization and turn waste into treasure. In this work, the natural water quality of Ordovician mine water in the Weibei coalfield had been tested, and the suspended matter and trace elements of Ordovician mine water in the selected deep detained area had been further tested. As a contrast, the water quality of Ordovician mine water after heating and concentration had been tested. The mechanical and hydraulic parameters of concentrated mine water-loess and concentrated mine water-cement slurry had been tested and compared with conventional slurry. The results showed characteristics of deep detained Ordovician limestone mine water is high salinity, certain suspended matters, limited special material and high permanent hardness. However, compressive strength of loess samples increased, while the permeability reduced. The initial setting-time of the modified material was short, while it showed an increased compressive strength. In practical terms, the quantity of grouting produced in engineering applications can be reduced by 16%, whereas the discharge of high-mineralized mine water can be decreased by about 40,000 m3/a.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000101701&tlng=enmine watermineralizedcoal miningwater-proof materialgrouting |
| spellingShingle | TAO LI YU LIU YING GAO JUNWEI YANG Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry Anais da Academia Brasileira de Ciências mine water mineralized coal mining water-proof material grouting |
| title | Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry |
| title_full | Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry |
| title_fullStr | Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry |
| title_full_unstemmed | Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry |
| title_short | Experiments and Application of Reclamation of High-Mineralized Mine Wastewater for Confecting Grouting Slurry |
| title_sort | experiments and application of reclamation of high mineralized mine wastewater for confecting grouting slurry |
| topic | mine water mineralized coal mining water-proof material grouting |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000101701&tlng=en |
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