| 煤矸石浸水后pH值测定方法及结果比较 |
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| 引用本文： | 王萍,胡振琪,马保国,张明亮,王培俊. 煤矸石浸水后pH值测定方法及结果比较[J]. 煤炭科学技术, 2010, 38(2) |
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| 作者姓名： | 王萍 胡振琪 马保国 张明亮 王培俊 |
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| 作者单位： | 1. 中国矿业大学(北京)土地复垦与生态重建研究所,北京,100083;加拿大麦吉尔大学采矿系,蒙特利尔 H3A 2A7
2. 中国矿业大学(北京)土地复垦与生态重建研究所,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2006AA06Z355);;国家自然科学基金资助项目(50874112) |
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| 摘 要： | 煤矸石pH值测定结果的差异对评价煤矸石酸性和预测酸水污染带来极大不便,目前国内外并没有明确出台有关煤矸石pH值测定标准。鉴于此,分析了国内外有代表性的煤矸石pH值测定方法,通过分析比较得出今后国内实验室测定煤矸石pH值时,需同时测定自然筛选粒径小于1mm和粉碎后粒径小于1mm的煤矸石pH值;应在水土质量比1∶1～2.5∶1,振荡频率120r/min时,连续振荡8h或静置24h后使用玻璃电极或性能相当的复合电极测定其pH值。准确的pH值测定结果对进一步试验材料选择、酸碱性评价、酸性废水处理和有害元素析出分析有着重要意义。
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| 关 键 词： | 煤矸石 pH值测定 酸性废水 土地复垦 |
Comparison on pH Value Measuring Methods and Results of Coal Rejects After Immersion in Water |
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| WANG Ping,HU Zhen-qi,MA Bao-guo,ZHANG Ming-liang,WANG Pei-jun. Comparison on pH Value Measuring Methods and Results of Coal Rejects After Immersion in Water[J]. Coal Science and Technology, 2010, 38(2) |
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| Authors: | WANG Ping HU Zhen-qi MA Bao-guo ZHANG Ming-liang WANG Pei-jun |
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| Abstract: | The difference of the coal reject pH value measured results would be high inconvenient to the evaluation of the coal reject acid and the prediction of acid water pollution zone.And there was no any standard on pH value measurement of coal reject issued at home and abroad.Thus the paper analyzed the typical measuring methods of coal reject pH value at home and abroad.The analysis comparison showed when the domestic lab measured the coal reject pH value,it would be necessary to measure the coal reject pH valu... |
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| Keywords: | coal rejects pH value measurement acidic waste water land reclamation |
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