  This paper presents a model of coagulation in electrolyte solutions. In this
paper, the coagulation process is modeled according to DLVO-theory, which is an
atomistic theory. On the other hand, we describe the dynamics in the
electrolyte solutions by the Poisson-Nernst-Planck system, which is a continuum
model. The contribution of this paper is to include the atomistic description
of coagulation based on DLVO-theory in the continuum Poisson-Nernst-Planck
system. Thereby, we involve information from different spatial scales. For this
reason, the presented model accounts for the short-range interactions and the
long-range interactions, which drive the coagulation process. Furthermore,
many-body effects are naturally included as the resulting model is a continuum
model.
