OPTIMIZATION OF GROUNDWATER PUMPING SCHEME FOR A CHLORINATED HYDROCARBON-CONTAMINATED SITE

SUN Jun-liang; GONG Zhi-qiang; LI Lu; NIU Hao-bo; YIN Le-yi; CHEN Jian

doi:10.13205/j.hjgc.202111023

Volume 39 Issue 11

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(11): 172-178

SUN Jun-liang, GONG Zhi-qiang, LI Lu, NIU Hao-bo, YIN Le-yi, CHEN Jian. OPTIMIZATION OF GROUNDWATER PUMPING SCHEME FOR A CHLORINATED HYDROCARBON-CONTAMINATED SITE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(11): 172-178. doi: 10.13205/j.hjgc.202111023

Citation:

SUN Jun-liang, GONG Zhi-qiang, LI Lu, NIU Hao-bo, YIN Le-yi, CHEN Jian. OPTIMIZATION OF GROUNDWATER PUMPING SCHEME FOR A CHLORINATED HYDROCARBON-CONTAMINATED SITE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(11): 172-178. doi: 10.13205/j.hjgc.202111023

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OPTIMIZATION OF GROUNDWATER PUMPING SCHEME FOR A CHLORINATED HYDROCARBON-CONTAMINATED SITE

doi: 10.13205/j.hjgc.202111023

1. Center for Ecological Environment in Yangtze River Economic Belt, Chinese Academy for Environmental Planning, Beijing 100012, China;
2. Hebei Key Laboratory of Geological Resources and Environment Monitoring and Protection, Hebei Geological Environmental Monitoring Institute, Shijiazhuang 050021, China

Received Date: 2020-10-20
Available Online: 2022-01-26

Abstract

Abstract

Taking the groundwater pumping scheme of a chlorinated hydrocarbon-contaminated site as an example, this paper used a numerical model combined algorithm and carried out optimization. The aim of pump-and-treat technology was that carbon tetrachloride concentration of the groundwater was less than 1500 μg/L after continuous extraction for 360 days. The optimization objective function was that the minimum total extraction volume. The simulation and optimization results showed that extraction volume of the initial wells, located in the central axis of the contaminated plume, was better than that of the uniform distribution. We divided the 360 days into two stages, and found that the total extraction volume reduced by 8.3% compared with the constant model. After dividing the 360-day extraction time into four stages, the optimized total extraction volume was reduced by 2.8% compared with the two stages model. However, the pumping rate of the fourth stage was only 274 m³/d. When keeping the total extraction amount stable, increasing the extraction rate of the fourth stage to 814 m³/d could shorten the extraction time to 300 days.
- groundwater,
- chlorinated hydrocarbon pollution,
- pump and treat,
- simulation-optimization

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References(27)

References

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