Open AccessNumerical simulation and prediction of groundwater pollution caused by the leakage of sulphuric acid storage tank with GMS model
Author(s) -
Yimin Liang,
Lan Jun-kang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/332/2/022055
Subject(s) - groundwater , environmental science , hydrogeology , pollution , pollutant , leakage (economics) , environmental engineering , groundwater pollution , aquifer , petroleum engineering , geology , geotechnical engineering , chemistry , ecology , macroeconomics , organic chemistry , economics , biology
Because of the concentration of SO 4 2- in the sulfuric acid tank is extremely high, the leakage of sulphuric acid storage tank is great harm to groundwater environment. Once the accident of leakage take place, the drinking water sources of residents around the leak point will be greatly polluted. In order to find out the severity of groundwater pollution and the migration of pollutants after leakage, a GMS software was used to simulate and predict. During simulation, the scope of the simulation area and its hydrogeological conditions were determined by hydrogeological surveying, mapping and drilling. The parameters used in the simulation are obtained from field tests. The simulation results show that the concentration of SO 4 2- at the central pollution halo is as high as 788050 mg/L after 27.39 years of the leakage accident happened. Due to the low permeability of the formations, the decontamination effect of the polluted halo mainly depends on the slow dilution of aquifer. The process of the completely purifying pollutants in groundwater will takes a long time.