Adsorption Characteristics of Petroleum Hydrocarbon Pollution in Aquifer Media
SU Xiaosi, YUAN Wenzhen, SONG Mian, ZHANG Yuling, WANG Wei
Institute of Water Resources and Environment, Jilin University, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Changchun 130021, China
Abstract：Because of the petroleum pipelines corrosion in northeastern China, the groundwater would be polluted by the hydrocarbons and the adsorption by aquifer media would have impact on the transport of hydrocarbons in aquifer. According to the test results of groundwater quality, combining with the hydrogeology conditions, by means of the kinetics and isothermal experiments of adsorption, taking the largest adsorption, absorption rate, and adsorption dynamics constant as quantitative indices, the adsorption characteristics of the aquifer medium to petroleum pollution in the regions are qualitative analyzed. The results show that the adsorption dynamics law involving aquifer medium to petroleum pollution are complied with two class dynamics model, adsorption volume is proportional to the specific surface area of aquifer medium, the major adsorption effect is physical adsorption effect; the isothermal adsorption law of aquifer medium to petroleum pollution is nonlinear isothermal adsorption; based on Langmuir model, by colloids, adsorption quantity and adsorption rate for aquifer medium to petroleum hydrocarbon by the order from large to small are silty, silty sand, and fine sand. The above experimental results provide the reliable scientific basis for the further study on the gas transform rule for petroleum pollutant in aquifer media and relevant repair technology.
2012, Vol. 30 
