ZHAIZhen-qi,HUANGTing-lin,CHENFan.Application of Water-lifting Aeration Technology in Water Quality Improvement of Water Diversion Reservoir[J].China Water & Wastewater,2022,38(8):31-37.
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Application of Water-lifting Aeration Technology in Water Quality Improvement of Water Diversion Reservoir

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第8期 Page: 31-37 Column: Date of publication: 2022-04-17
Author(s):
ZHAI　Zhen-qi1;  HUANG　Ting-lin2;  CHEN　Fan2
（1. Xikeng Reservoir Management Institute， North Water Resources Engineering Management Office， Shenzhen 518110， China； 2. School of Environmental and Municipal Engineering， Xi’an University of Architecture and Technology， Xi’an 710055， China）
Keywords:
water-lifting aeration;  Xikeng reservoir;  thermal stratification;  water quality improvement
Abstract:
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 June 28 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 6 mg/L, the algae density decreased to 5×106 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/m3 at most, much lower than the treatment cost of waterworks.
Last Update: 2022-04-17