| 神东矿区矿井水水化学特征及其灌溉 适宜性评价 |
| |
| 引用本文： | 吕情绪,李 果,许 峰,,' target='_blank'>,杨茂林,黄 欢,' target='_blank'>.神东矿区矿井水水化学特征及其灌溉 适宜性评价[J].中州煤炭,2021,0(12):116-122. |
| |
| 作者姓名： | 吕情绪 李 果 许 峰 ' target='_blank'> 杨茂林 黄 欢 ' target='_blank'> |
| |
| 作者单位： | （1.神东煤炭集团有限责任公司，陕西 神木 719300； 2.煤炭科学研究总院，北京 100013； 3.中煤科工集团西安研究院有限公司，陕西 西安 710054； 4.陕西省煤矿水害防治技术重点实验室，陕西 西安 710054） |
| |
| 摘 要： | 矿井水水化学特征决定着其处理工艺及其成本。以神东矿区为研究对象，采集了12组矿井水样品进行测试，采用统计分析、Piper三线图、Gibbs图、各离子间相关关系，确定了其水化学特征及其影响机制。结果表明，矿井水样品的pH值为7.64~8.48，TDS为275.13~3 090.14 mg/L，F-浓度最高为6.75 mg/L，绝大部分矿井水为高氟、高矿化度水；在空间上呈现了西北高、东南低，随埋深增大，TDS和F-浓度逐渐升高的趋势；主要水化学类型为HCO3·SO4·（Cl）-Na及HCO3·SO4·（Cl）-Na·Ca。煤层埋深较浅，易接受补给的矿井水主要受岩石风化控制，反之，主要受浓缩作用控制。同时矿井水还发生了阳离子反交换作用。其用于灌溉的盐碱害较严重，综合EC值、SAR以及钠百分含量指标，判定矿井水大部分为不适合灌溉用水。研究为后期制定矿井水处理工艺及高效利用方案提供参考。
|
| 关 键 词： | 矿井水 水化学特征 Piper三线图 Gibbs图 灌溉适宜性 神东矿区 |
Hydrochemical characteristics of mine water and its suitability for irrigation in Shendong Mining Area |
| |
| Lü Qingxu,Li Guo,Xu Feng,,' target='_blank'>,Yang Maolin,Huang Huan,' target='_blank'>. Hydrochemical characteristics of mine water and its suitability for irrigation in Shendong Mining Area[J].Zhongzhou Coal,2021,0(12):116-122. |
| |
| Authors: | Lü Qingxu Li Guo Xu Feng ' target='_blank'> Yang Maolin Huang Huan ' target='_blank'> |
| |
| Affiliation: | （1.Shengdong Coal Technology Insititute，Shendong Coal Group Co.，Ltd.，Shenmu 719300，China； 2.China Coal Research Institute，Beijing 100013，China；3.CCTEG Xi′an Research Institute，Xi′an 710054，China； 4.Shaanxi Key Laboratory of Preventing and Controlling Coal Mine Water Hazard，Xi′an 710054，China） |
| |
| Abstract: | The hydrochemical characteristics of mine water determine the treatment technique and its cost.Taking Shendong mining area as the study area，12 mine water samples were collected for testing，and their hydrochemical characteristics and influencing mechanism were determined by statistical analysis，Piper trilinear diagram，Gibbs diagram and correlation among ions.The results showed that the pH value of all mine water samples was 7.64~8.48.The TDS was 275.13~3 090.14 mg/L，and the highest F- concentration was 6.75 mg/L.Most of mine water was high fluorine and high salinity water.Spatially，the concentration of TDS and F- increased with the increase of burial depth.The main hydrochemical types were HCO3·SO4·（Cl）-Na and HCO3·SO4·（Cl）-Na·Ca.The depth of coal seam was shallow，and the mine water which was easy to receive recharge was mainly controlled by rock weathering，on the contrary，it was mainly controlled by concentration.At the same time，the mine water also has cation exchange reaction.The salt and alkali damage used for irrigation was serious.According to the comprehensive EC value，SAR and sodium content，the mine water was judged to be unsuitable for irrigation.The results can provide a reference for the later development of minewater treatment process and efficient utilization plan. |
| |
| Keywords: | ,mine water, hydrochemical characteristics, Piper trilinear diagram, Gibbs diagram, suitability for irrigation, Shendong Mining Area |
|
| 点击此处可从《中州煤炭》浏览原始摘要信息 |
|
点击此处可从《中州煤炭》下载全文 |
