Vacuum membrane distillation is modeled for the purification of water containing organic matter. The separation medium is a hollow-fiber membrane contactor that is simplified to a two-dimensional structure with a single porous membrane wall. The model considers the transport phenomena of a vacuum membrane distillation system in porous media, in which the aqueous volatile organic solution was considered as an incompressible and steady fluid. The numerical simulation of the two-dimensional model of vacuum membrane distillation for an aqueous solution of 1,1,1-trichloroethane was established under steady state. The effects of the bulk feed temperature and the feed flow rate on the percentage of 1,1,1-trichloroethane removal from an aqueous solution are discussed.