强化混凝去除腐殖酸的试验研究(英文)  

Research on the Removal of Humic Acid by Enhanced Coagulation

作　　者：武道吉[1] 张丽[1] 姜瑞雪[2] 焦盈盈[1] 李满[1] 李秋梅[1] 

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101 [2]山东农业大学水利土木工程学院,山东泰安271018

出　　处：《中山大学学报（自然科学版）》2007年第B06期121-122,共2页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：山东省中青年科学家基金资助项目(2004BS08012)

摘　　要：选用Al2(SO4)3、FeCl3混凝剂对腐殖酸的强化混凝试验表明,强化混凝对腐殖酸有很好的去除效果。pH值和混凝剂投加量是影响腐殖酸处理效率的主要因素,其中调整pH值更有效。Al2(SO4)3混凝的最佳pH值在5左右,FeCl3在4左右。Al2(SO4)3投加量为4mg/L时,DOC、CODMn及UV254去除率可分别达到69.7%、84.8%和96.9%。FeCl3投加量为5mg/L时,DOC、CODMn及UV254去除率可分别达到78.1%、89.3%和97.8%。The effect on the removal of humic acid by enhanced coagulation with Al2 （ SO4 ）3 and FeCl3 was investigated. The results show that the efficiency of humic acid removal by enhanced coagulation is high. The pH and the dosage of coagulant are the main factors to the removal of humic acid. But the pH adjustment is a predominant factor. The optimal pH to Al2 （ SO4 ） 3 is 5 around. The optimal pH to FeCl3 is 4 around. When the dosage of Al2 （SO4）3 is 4mg/L, the removing rates of DOC, CODMn and UV254 are 69.7% , 84. 8% and 96. 9% respectively. When the dosage of FeCl3 is 5mg/L, the removing rates of DOC, CODMn and UV254 are 78.1% , 89. 3% and 97.8% respectively.

关 键 词：强化混凝 腐殖酸 硫酸铝 三氯化铁 

分 类 号：TU991.2[建筑科学—市政工程]