摘要
利用石灰石对某粉煤灰堆放场灰水及某铝厂赤泥废水中的氟离子进行模拟吸附试验.分别从石灰石对氟离子的吸附量、F-浓度、pH及总硬度四个方面,分析石灰石对可溶性氟的吸附能力.结果表明,石灰石对中性水质中可溶性氟有较强吸附能力,而对强碱性水质中的可溶性氟的吸附能力微弱.这一结论可为地下水氟污染防治提供理论基础.
Through analogue adsorption experiment with limestone to F- of ash water on some coal ash stack-yard and in the red mud stack-yard of some aluminum factory, according to the adsorption amounl of limestone to F^-, the concentration transformation of F^-, pH and total hardness four aspects, analyzing the adsorptive capacity of limestone to soluble fluorine. The results show that there is strong adsorption capacity about limestone to F^- when the water is in neutrality condition, but it is very weak when water shows strong alkalescency. This result can provide theoretical basis for the precaution and treatment about the pollution of F under groundwater.
出处
《环境科学与管理》
CAS
2006年第2期65-67,共3页
Environmental Science and Management
关键词
高氟水
再矿化
比表面积
吸附饱和
high fluorine water
mineralizes again
specific surface area
adsorption saturation
