高温高盐矿井水药剂软化处理的试验研究  

EXPERIMENTAL STUDY ON CHEMICAL AGENT SOFTENING TREATMENT OF MINE DRAINAGE WITH HIGH TEMPERATURE AND HIGH SALINITY

作　　者：田伟[1] 单绍磊[1] 郭中权[2] 乔大磊[2] 

机构地区：[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

出　　处：《能源环境保护》2012年第1期30-32,49,共4页Energy Environmental Protection

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。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.

关 键 词：高温高盐 矿井水 药剂软化 

分 类 号：X703[环境科学与工程—环境工程]