Abstract: The present invention belongs to the technical field of warning for petroleum pollution, and particularly provides an early warning method for vadose zone and groundwater pollution in a contaminated site. The present invention can monitor and analyze the conductivity and water content of pore water in a vadose zone in real time and determine the pollution level according to a parameter variation and an analysis on collected samples; and furthermore, the present invention can give multi-level early warnings before groundwater is polluted, accurately determine the pollution level, and provide corresponding measures in time.

Abstract: The present disclosure discloses a method for designing SVE process parameters in a petroleum-type polluted field. The method includes the steps of: first step, clarifying the conditions of the field and the petroleum-type pollution; second step, by referring to field parameters, pollution parameters and SVE process parameters, establishing an SVE remediation model by using a TOUGH software and obtaining remediation rates; the third step, by using the method of grey correlation degree, screening p main control factors; fifth step, performing fitting verification to the results of simulation according to a multi-variable equation of linear regression, and judging whether the simulation accuracy satisfies design requirements; and sixth step, screening an optimum combination of the SVE process parameters and applying the combination.