Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions
In order to reveal the impact of a high concentration of CO2 on the soil in the coal mining subsidence area, the surface above the goaf before CO2 injection is regarded as a subsidence area model. Based on the actual vertical depth of 70∼80 m shallow buried coal seam geological conditions, CO2 diffu...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/6634919 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560509714432000 |
|---|---|
| author | Naifu Cao Yuntao Liang Gang Wang |
| author_facet | Naifu Cao Yuntao Liang Gang Wang |
| author_sort | Naifu Cao |
| collection | DOAJ |
| description | In order to reveal the impact of a high concentration of CO2 on the soil in the coal mining subsidence area, the surface above the goaf before CO2 injection is regarded as a subsidence area model. Based on the actual vertical depth of 70∼80 m shallow buried coal seam geological conditions, CO2 diffusion in the goaf is regarded as a short-term high-concentration CO2 leakage model. The surface soil samples before and after 60 tons of direct injection of liquid CO2 in the goaf of Huojitujing in the Daliuta Coal Mine could be collected to conduct the experimental observation. By measuring the changes in the five indicators of soil air-dried and fresh sample including pH, available nitrogen, available potassium, water-soluble salt, and total organic carbon, the changes of pH and mineral content in the soil could be analyzed quantitatively and qualitatively at different time periods before and after CO2 injection. This proves that the injection of CO2 into the goaf has an impact on the chemical properties of the surrounding soil. |
| format | Article |
| id | doaj-art-23f99f0d762a45639d5bf7d14c3aef24 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-23f99f0d762a45639d5bf7d14c3aef242025-02-03T01:27:22ZengWileyJournal of Chemistry2090-90632090-90712021-01-01202110.1155/2021/66349196634919Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological ConditionsNaifu Cao0Yuntao Liang1Gang Wang2China Coal Research Institute, Beijing 100013, ChinaState Key Laboratory of Coal Mine Safety Technology, Fushun 113122, ChinaState Key Laboratory of Coal Mine Safety Technology, Fushun 113122, ChinaIn order to reveal the impact of a high concentration of CO2 on the soil in the coal mining subsidence area, the surface above the goaf before CO2 injection is regarded as a subsidence area model. Based on the actual vertical depth of 70∼80 m shallow buried coal seam geological conditions, CO2 diffusion in the goaf is regarded as a short-term high-concentration CO2 leakage model. The surface soil samples before and after 60 tons of direct injection of liquid CO2 in the goaf of Huojitujing in the Daliuta Coal Mine could be collected to conduct the experimental observation. By measuring the changes in the five indicators of soil air-dried and fresh sample including pH, available nitrogen, available potassium, water-soluble salt, and total organic carbon, the changes of pH and mineral content in the soil could be analyzed quantitatively and qualitatively at different time periods before and after CO2 injection. This proves that the injection of CO2 into the goaf has an impact on the chemical properties of the surrounding soil.http://dx.doi.org/10.1155/2021/6634919 |
| spellingShingle | Naifu Cao Yuntao Liang Gang Wang Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions Journal of Chemistry |
| title | Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions |
| title_full | Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions |
| title_fullStr | Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions |
| title_full_unstemmed | Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions |
| title_short | Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions |
| title_sort | study on the influence of direct ground liquid co2 injection on soil chemical properties in subsidence areas under shallow buried geological conditions |
| url | http://dx.doi.org/10.1155/2021/6634919 |
| work_keys_str_mv | AT naifucao studyontheinfluenceofdirectgroundliquidco2injectiononsoilchemicalpropertiesinsubsidenceareasundershallowburiedgeologicalconditions AT yuntaoliang studyontheinfluenceofdirectgroundliquidco2injectiononsoilchemicalpropertiesinsubsidenceareasundershallowburiedgeologicalconditions AT gangwang studyontheinfluenceofdirectgroundliquidco2injectiononsoilchemicalpropertiesinsubsidenceareasundershallowburiedgeologicalconditions |