How Treatment Mass Flux Links Work

When you create a treatment mass flux link A mass flux link in which species are filtered (treated) as they are moved from one pathway to another based on a user-specified fraction (treatment efficiency). from a Cell, this is how it is implemented within GoldSim:

1. GoldSim adds all of the non-coupled influxes to the Cell (fluxes whose Link Type is Normal or Previous-value), along with any external fluxes specified via the Cumulative Input field.
2. The Fraction defined for the treatment mass flux link An interconnnection between two transport pathways that defines the rate at which species move between the pathways. is multiplied by the summed influxes. The product of this is then immediately transferred via the treatment mass flux link out of the Cell.
3. All other Cell calculations are then carried out on the remaining mass in the Cell (e.g., other flux links, solubility and sorption calculations).

Warning: Mass present in a Cell at the beginning of a simulation (i.e., initial conditions) are not treated. That is, mass initially present in the Cell cannot be removed using a treatment flux link.

It is worth reiterating here that treatment mass flux links only act on mass fluxes that are entering from outside the Cell net A network of interconnected Cell pathways that are directly linked by coupled mass flux links. to which the Cell belongs (i.e., they do not act on any mass entering via Coupled links). Hence, in order to treat incoming fluxes, you must first specify them as Normal (as opposed to Coupled) flux links (or must be specified as direct inputs via the Cumulative Inputs field). Coupled influxes will not be impacted: