| 高温高盐矿井水药剂软化处理的试验研究 |
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| 引用本文： | 田伟,单绍磊,郭中权,乔大磊.高温高盐矿井水药剂软化处理的试验研究[J].能源环境保护,2012,26(1):30-32,49. |
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| 作者姓名： | 田伟 单绍磊 郭中权 乔大磊 |
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| 作者单位： | 1. 山东能源新汶矿业集团有限责任公司,新泰,272000
2. 煤炭科学研究总院杭州环保研究院,杭州,311021 |
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| 摘 要： | 针对一种高温高盐矿井水,通过软化试验比较了不同药剂的软化效果。试验结果表明:最优加药量下,单独采用石灰硬度去除率为24.8%;单独采用碳酸钠,硬度去除率为71.5%;采用石灰-碳酸钠联合软化法,硬度去除率达95.4%。氢氧化钠软化试验说明该矿井水pH接近其临界值9.13,水质较稳定,不易析出碳酸钙沉淀。各种药剂软化后都存在pH值上升现象,处理后均需加酸调节pH值至中性。
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| 关 键 词： | 高温高盐 矿井水 药剂软化 |
EXPERIMENTAL STUDY ON CHEMICAL AGENT SOFTENING TREATMENT OF MINE DRAINAGE WITH HIGH TEMPERATURE AND HIGH SALINITY |
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| TIAN Wei
,
SHAN Shao-lei
,
GUO Zhong-quan
,
QIAO Da-lei.EXPERIMENTAL STUDY ON CHEMICAL AGENT SOFTENING TREATMENT OF MINE DRAINAGE WITH HIGH TEMPERATURE AND HIGH SALINITY[J].Energy Environmental Protection,2012,26(1):30-32,49. |
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| Authors: | TIAN Wei SHAN Shao-lei GUO Zhong-quan QIAO Da-lei |
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| Institution: | 1. Xinwen Mining Group Co., Ltd., Shandong Energy, Xintai 272000, China; 2. Hangzhou Institute for Environmental Protection, China Coal Research Institute, Hangzhou 311201, China) |
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| Abstract: | The different chemical agent softening effects of mine drainage with high tempera- ture and high salinity are studied. The results show that： at the optimal dosage, the removal rate of hardness is 24.8% by adding lime. The removal rate of hardness is 71.5% by adding sodium carbonate. The removal rate of hardness is 95.4% by adding lime and sodium carbon- ate. Sodium hydroxide softening show that pH of mine drainage is 9.13 close to the critical value; and it is hard to form calcium carbonate precipitation in the stable mine drainage . The pH-value of mine drainage increased after chemical agent softening. The pH-value needs to be adjusted to neutrality by adding acid. |
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| Keywords: | high temperature and high salinity mine drainage chemical agent softening |
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