LIUJia-zheng,TIANBao-yi,LIRong-guang,et al.Effectiveness of Aeration Stripping for Controlling Typical Taste and Odor Compounds in Water Source Reservoirs[J].China Water & Wastewater,2025,41(11):16-23.
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Effectiveness of Aeration Stripping for Controlling Typical Taste and Odor Compounds in Water Source Reservoirs

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第41卷 Number: 第11期 Page: 16-23 Column: Date of publication: 2025-06-01
Author(s):
LIU　Jia-zheng1;  TIAN　Bao-yi2;  LI　Rong-guang2;  HAN　Zheng-shuang3;  HU　Rui-zhu1;  GAO　Han1;  DANG　Yang-zhou1;  HUANG　Ting-lin1;  LI　Kai1
（1. Key Laboratory of Northwest Water Resources， Environment and Ecology ， School of Environmental and Municipal Engineering， Xi’an University of Architecture and Technology， Xi’an 710055， China； 2. Tianjin Water Group Co. Ltd.， Tianjin 300202， China； 3. Tianjin Public Utility Design ＆ Research Institute， Tianjin 300100， China）
Keywords:
water source reservoir;  aeration stripping;  2-methylisoborneol;  geosmin;  in-situ control
Abstract:
To investigate the effectiveness and influencing factors of aeration stripping for the in-situ control of 2-methylisoborneol (2-MIB) and geosmin (GSM) in water source reservoirs, a bench-scale study was conducted using synthesized water and reservoir source water. The results showed that the aerator head aperture, aeration flow rate per unit area, and temperature were the primary factors influencing the efficiency of aeration stripping in removing odor-causing substances. Under conditions of a 5 μm aerator head aperture, an aeration rate of 2.830 L/(min·m2), and a temperature of 25 ℃, 48 hours of aeration resulted in reduction rates of 2-MIB and GSM by 81.7% and 84.3%, respectively. For reservoir source water, aeration not only directly removed the dissolved 2-MIB in the water but also inhibited the growth of odor-producing microorganisms, such as algae and actinomycetes, thus reducing 2-MIB in the water. Compared to the non-aeration control group, aeration at 25 ℃ achieved a reduction rate of 88.5% for 2-MIB in the raw water. Preliminary economic analysis indicated that the operational cost of in-situ aeration stripping for controlling odor substances in the reservoir was only 0.042 yuan/m3, significantly lower than the emergency treatment costs at the water treatment plant.
Last Update: 2025-06-01