A study of turbulent particle transport and drift mode stability in deuterium-tritium plasmas is presented. The study is based on an extended implementation of the Weiland transport model for ion temperature gradient (ITG-) modes and trapped electron (TE-) modes. The dependence of the transport fluxes on the tritium density gradient and the tritium concentration is investigated. Particle pinches are demonstrated for general parameter values and an asymmetry is found in the deuterium and tritium transport fluxes.