![Sample our Environment & Sustainability journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5935/TOC-Subject-Sample-2021-Environment-Sustainability.jpg"})
Abstract
Steady state diffusion is characterized by a constant concentration gradient. It is obtained by imposing a limited solubility on the compound of interest and offers the possibility of an appreciable reduction of the emission(‐rate) from a waste body.
The principle of steady state diffusion and its application to four limiting cases of practical interest are surveyed. In addition, the combination of a waste body with a surrounding barrier layer is considered. By comparing steady state diffusion to the non‐steady situation, its advantage factor can be derived. Similarly, the use of a barrier is defined in terms of an advantage factor.
Radiotracers provide an efficient way of measuring the effective diffusion coefficients and the emission(‐rate) from a waste body in laboratory or field experiments.