[1]王志红,植许鋆,李炳萱,等.KMnO4强化混凝耦合超滤去除湖库水中共存铁锰藻[J].中国给水排水,2022,38(5):1-8.
　WANGZhi-hong,ZHIXu-jun,LIBing-xuan,et al.Potassium Permanganate Pre-oxidation Enhanced Coagulation Coupled with Ultrafiltration to Remove Co-existed Iron, Manganese and Algae in Lakes and Reservoirs in South China[J].China Water & Wastewater,2022,38(5):1-8.
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KMnO4强化混凝耦合超滤去除湖库水中共存铁锰藻

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第5期 页码: 1-8 栏目: 出版日期: 2022-03-01
Title:
Potassium Permanganate Pre-oxidation Enhanced Coagulation Coupled with Ultrafiltration to Remove Co-existed Iron, Manganese and Algae in Lakes and Reservoirs in South China
作者:
王志红1， 植许鋆1， 李炳萱1， 姜燕1， 卢佳宏1， 商策2， 杜星1
（1.广东工业大学 土木与交通工程学院，广东 广州 510006；2.埃隆水处理技术<上海>有限公司，上海 202150）
Author(s):
WANG　Zhi-hong1， ZHI　Xu-jun1， LI　Bing-xuan1， JIANG　Yan1， LU　Jia-hong1， SHANG　Ce2， DU　Xing1
（1. School of Civil and Transportation Engineering， Guangdong University of Technology， Guangzhou 510006， China； 2. Elon Water Treatment Technologies Co. Ltd.， Shanghai 202150， China）
关键词:
高锰酸钾预氧化;  强化混凝;  超滤;  藻;  铁;  锰;  膜污染
Keywords:
potassium permanganate pre-oxidation;  enhanced coagulation;  ultrafiltration;  algae;  iron;  manganese;  membrane fouling
摘要:
华南地区湿热环境下铁、锰和藻共存湖泊水具有明显的地域特征。对华南地区三个典型的高藻湖水进行了水质调研，针对性地研究了高锰酸钾预氧化强化混凝耦合超滤对高藻湖泊水中铁、锰、藻的去除效能及膜污染特征。结果表明，随着高锰酸钾投加量的增加，耦合工艺对铁、锰、藻、蛋白质和多糖的去除效果均增强， 尤其当投加量为2.5 mg/L时，铁、锰、藻的去除率分别可达93.7%、91.5%、91.0%。进一步研究发现，高锰酸钾预氧化水中铁和锰的产物对高藻水具有助凝作用，使得藻细胞团聚并且形成了更大的颗粒，SEM-EDS和XPS分析显示高锰酸钾预氧化形成了铁与锰的氧化物。最后，对实际湖库水进行短周期和长周期实验，出水水质均保持稳定，且预氧化能有效缓解膜污染。
Abstract:
The distribution of co?existed iron, manganese and algae in South China has obvious regional characteristics under the hot?humid environment. Based on the water quality investigation of three typical algae-laden lakes in South China, the removal of iron, manganese and algae and membrane fouling characteristics have been specifically explored in the potassium permanganate pre-oxidation enhanced coagulation coupled with ultrafiltration process. The results showed that the removal effects of iron, manganese, algae, protein and polysaccharide were enhanced with the potassium permanganate dosage rising in the coupled process. Especially the removal rates of iron, manganese and algae reached 93.7%, 91.5% and 91.0%, respectively, with potassium permanganate dosage of 2.5 mg/L. In addition, the products of potassium permanganate pre-oxidation exhibited the coagulation?assisting effect on high algae?laden water and were identified as iron and manganese oxides based on SEM-EDS and XPS analysis. Finally, the stable effluent quality and alleviative membrane fouling also were confirmed by the short?term and long?term experiments on the actual lake and reservoir water.

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更新日期/Last Update: 2022-03-01