扬水曝气技术在调水型水库水质改善中的应用  

Application of Water-lifting Aeration Technology in Water Quality Improvement of Water Diversion Reservoir

作　　者：翟振起 黄廷林[2] 陈凡 ZHAI Zhen-qi;HUANG Ting-lin;CHEN Fan(Xikeng Reservoir Management Institute,North Water Resources Engineering Management Office,Shenzhen 518110,China;School of Environmental and Municipal Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]深圳市北部水源工程管理处茜坑水库管理所,广东深圳518110 [2]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《中国给水排水》2022年第8期31-37,共7页China Water & Wastewater

基　　金：国家重点研发计划项目(2019YFD1100101)。

摘　　要：为探究扬水曝气技术在调水型水库水质改善中的应用效果,在茜坑水库扬水曝气强化生物改善工程运行前、后一个月(2021年6月28日—9月2日)进行了全库水质监测。结果显示,扬水曝气系统成功提升了水体含氧量,提高了水体流动性,强化了水库自净能力。作用范围内水体热分层完全消失,底层溶解氧升高到6 mg/L以上,藻密度降低到5×10^(6)cells/L且优势种由蓝藻转变为硅藻,铁和锰释放得到显著抑制,TP削减率增加了21%。此外,运行成本最多仅为0.02元/m^(3),远低于水厂处理成本。To explore the application performance of water-lifting aeration(WLA) technology in water quality improvement of water diversion reservoirs, the water quality of the whole Xikeng reservoir was monitored before and after the operation of WLA enhanced biological improvement project from June28 to September 2, 2021. The WLA system successfully increased the oxygen content of the water body,improved the fluidity of the water body and strengthened the self-purification capacity of the reservoir. The water thermal stratification disappeared completely, the bottom dissolved oxygen increased to more than 6mg/L, the algae density decreased to 5×10^(6)cells/L, and the dominant species changed from cyanobacteria to diatoms. The release of iron and manganese was significantly inhibited, and the TP reduction rate increased by 21%. In addition, the operating cost was 0.02 yuan/m^(3) at most, much lower than the treatment cost of waterworks.

关 键 词：扬水曝气 茜坑水库 热分层 水质改善 

分 类 号：TU991[建筑科学—市政工程]