PDF全文下载：2011010051
赵春禄, 刘琰
（青岛科技大学 环境与安全工程学院，山东 青岛 266042）
摘要： 采用K2FeO4预氧化复合高岭土和聚合氯化铝（PAC）混凝处理了含颤藻和腐殖酸的混合水，并探讨了对处理后水中残留铝含量及其形态分布的影响。结果表明：投加4.0 mg·L-1 K2FeO4预氧化就能使混合水样的浊度、腐殖酸和藻类的去除率分别达到94.05%、91.67%和90.78%，明显优于相同条件下单纯的PAC处理效果；水样的pH值对K2FeO4预氧化有显著的影响，在pH=6.5时效果最好；K2FeO4预氧化影响处理后水中残留铝的含量和形态，在最佳条件下总铝浓度降低了51.8%，特别是对人体毒害作用最大的溶解态铝降低了43.9%。
关键词： 高铁酸钾； 预氧化； 絮凝； 颤藻； 腐殖酸； 铝形态分布
中图分类号： X 703.1 文献标志码： A
Removing Oscillatoria and Humic Acid from Mixed Water by Potassium Ferrate(VI) Pre-oxidation and Co-coagulation
ZHAO Chun-lu， LIU Yan
(College of Environment and Safety Engineering，Qingdao University of Science and Technology，Qingdao 266042，China)
Abstract： The mixed water containing Oscillatoria and humic acid was disposed by using potassium ferrate(VI) as the pre-oxidation agent，poly-aluminum chloride(PAC) and Kaolin as the co-coagulation agents. The residual aluminum morphology was also studied. The consequence was that the ferrate concentration with 4.0 mg·L-1 could improve the removal rate of turbidity,HA and algae, whose value was 94.05%,91.67% and 90.78% respectively, and the effect was much better than PAC singly. The pH value affected the efficiency of ferrate pre-oxidation processing mixed water. In acidic condition (pH = 6.5) the effect was best. Potassium ferrate(VI) pre-oxidation affected the content and form of residual aluminum.Under the best condition the total aluminum concentration reduced by 51.8%, and especially the dissolved aluminum which poisoned human body decreased by 43.9%.
Key words： potassium ferrate(VI); pre-oxidation; coagulation; Oscillatoria; humic acid; aluminum species distributions
收稿日期：2010-09-07
作者简介： 赵春禄（1950—），男，教授.
