Volume 7 Issue 4
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Article Navigation >  Journal of Environmental Engineering Technology  > 2017  >  7(4): 457-462
XU Feng, HUANG Hai, YANG Yong, WANG Yuyu, NIU Jing, CAO Chengcheng, ZHANG Wen, QU Zhihui, CHEN Meiping. Lab and pilot study on treatment of volatile organic compounds contaminated underground water with air stripping method[J]. Journal of Environmental Engineering Technology, 2017, 7(4): 457-462. doi: 10.3969/j.issn.1674-991X.2017.04.062
Citation: XU Feng, HUANG Hai, YANG Yong, WANG Yuyu, NIU Jing, CAO Chengcheng, ZHANG Wen, QU Zhihui, CHEN Meiping. Lab and pilot study on treatment of volatile organic compounds contaminated underground water with air stripping method[J]. Journal of Environmental Engineering Technology, 2017, 7(4): 457-462. doi: 10.3969/j.issn.1674-991X.2017.04.062
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Lab and pilot study on treatment of volatile organic compounds contaminated underground water with air stripping method

doi: 10.3969/j.issn.1674-991X.2017.04.062

  • 1. Zhongke Huanan (Xiamen) Environmental Engineering Co., Ltd., Xiamen 361021, China

  • 2. Zhongke Dingshi Environmental Engineering Co., Ltd., Beijing 100029, China

More Information
  • Corresponding author: Yong YANG E-mail: yangyong@bjdshj.net
  • Received Date: 2016-11-03
  • Publish Date: 2017-07-20
    Abstract
  • The effects of different gas-water ratios on the removal efficiency of three typical volatile organic compounds (VOCs), 1,2-dichloroethane, benzene and chloroform, in underground water were evaluated with air stripping tower in laboratory. Results showed that the removal efficiencies were above 89%, 93% and 95% for 1,2-dichloroethane, benzene and chloroform, respectively, under the condition of 20 ℃ and gas-water ratio of 60∶1. Base on the laboratory study, an enlarged stripping tower was designed and used for pilot study on the influences of gas-water ratio, water temperature, VOCs concentration and different VOCs compounds on the removal efficiency. The pilot study results indicated that gas-water ratio and water temperature significantly influenced the removal efficiency of the three VOC compounds. Under the condition of 20 ℃ and gas-water ratio of 75∶1, the removal efficiencies of 1,2-dichloroethane, benzene and chloroform were all higher than 99.7%, which reached the design target values. The off-gas from stripping tower was treated by dielectric barrier discharge (DBD) low temperature plasma plus granular activated carbon (GAC).

     

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