摘要
根据矿井水的水质特性,进行了矿井水的混凝实验研究。分别采用聚合氯化铝、三氯化铁及复合铝铁盐3种混凝剂进行烧杯实验,确定最佳混凝剂,最佳pH范围,并通过正交实验确定最佳水力条件。结果表明,复合铝铁盐的混凝效果最佳,最佳投药量为16mg/L;最佳pH范围为7.0~9.0;最佳水力条件为：混合G值为56.5s-1,GT为10170;反应G值为7.9s-1,GT为17280。最佳混凝条件的确定,将对矿井水的资源化利用起到一定的促进作用。
According to the quality characteristics of mine water, experimental research on coagulation of mine water was carried out. Different inorganic coagulants of PAC, FeCl3 and PAFC were used in jar tests to ascertain the optimal coagulant, pH value and hydrodynamic conditions. Result shows that the optimum conditions include the PAFC dosage of 16 mg/L, pH value of 7.0~9.0, mixing G value of 56.5 s-1, mixing GT value of 10 170, reactive G value of 7.9 s-1, and reactive GT value of 17 280. The decision of the optimum coagulation conditions might be helpful for the utilization of mine water.
基金
国家自然科学基金项目(50678172)
教育部科学技术研究重点项目(107022)
关键词
环境工程学
矿井水
混凝
混凝剂
environmental engineering
mine water
coagulation
coagulant
