Influence of CO2 Leakage on Underground Water Quality Based on CCUS
CCUS is the capture,transportation,utilization and storage of CO2 gas,which is a green environmental protection high-tech that can achieve zero CO2 emissions.The leakage of CO2 gas is inevitable in this technical project.This paper simulates the impact of CO2 leakage on underground water quality in CCUS technology.By recording the changes of pH value,Ca2+,Mg2+,alkalinity and HCO3-in the water system,and the change rules of CO2 gas in the process of continuous leakage were analyzed.The mathematical model of CO2 gas storage in CCUS was established.Studies have shown that CO2 leakage can significantly change water quality.The pH value of water quality and the concentration of Ca2+and other elements can be used as sensitive parameters to detect CO2 leakage in CCUS process.At the same time,the modeling formula of CO2 gas storage is used to judge the change of CO2.It is helpful to judge the leakage of CO2.
CO2 leakageunderground water qualitymathematical modeling
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