铝钛复配混凝剂对富藻水样的混凝效果  

Coagulation Performances of Algae-laden Water Treatment by Al-Ti Compound Coagulants

作　　者：刘加召 许伟颖 刘大伟 彭艺媛 徐征和 刘素 LIU Jiazhao;XU Weiying;LIU Dawei;PENG Yiyuan;XU Zhenghe;LIU Su(No.8 Institute of Geology and Mineral Resources Exploration of Shandong Province,Rizhao 276826,Shandong,China;School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China;School of Water Resources and Environment,China University of Geosciences,Beijing 100083)

机构地区：[1]山东省第八地质矿产勘查院,山东日照276826 [2]济南大学水利与环境学院,山东济南250022 [3]中国地质大学(北京)水资源与环境学院,北京100083

出　　处：《济南大学学报(自然科学版)》2025年第2期200-203,211,共5页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金项目(52270005);日照市重点研发计划项目(2021ZDYF010234);山东省重点研发计划(乡村振兴科技创新提振行动计划)项目(2023TZXD022)。

摘　　要：为了改善混凝剂对富藻水源水的处理效果,提高混凝出水水质,利用传统铝盐、钛盐制备铝钛复配混凝剂,探讨混凝剂投加量和铝钛元素复配比例对富藻水样混凝效果的影响。结果表明,铝元素含量较高的复配混凝剂在投加量较小时对波长680 nm的光密度(OD 680)降低效果和溶解性有机碳(DOC)的去除效果较好;当投加量大于100μmol/L时,钛元素含量高的复配混凝剂对DOC去除率较高。铝元素与钛元素物质的量比为1∶2的复配混凝剂的投加量为100μmol/L时,DOC的去除率最高达约70%,混凝絮体粒径随着复配混凝剂中钛元素含量的增加而增大。To enhance the coagulation performance of algae-laden water and improve the water quality of coagulation effluent,Al-Ti compound coagulants were prepared using traditional Al and Ti salts,and the effects of dosage and ratio of aluminum to titanium in coagulant on the coagulation of algal water samples was investigated.The results show that the compound coagulant with higher aluminum content has better effect on reducing the optical density of wavelength 680 nm(OD 680)and removing dissolved organic carbon(DOC)when the dosage is small.When the dosage is higher than 100μmol/L,the coagulants with higher titanium content has higher removal efficiency of DOC.When the dosage of the complex coagulant with the molar ratio of aluminum and titanium 1∶2 is 100μmol/L,the highest removal rate of DOC is about 70%.The size of coagulation floc increased with the increase of titanium content in the compound.

关 键 词：富藻水源 藻类细胞 藻源有机物 混凝剂 混凝 

分 类 号：X524[环境科学与工程—环境工程]