[8] In the absence of source/sink terms, the equation for the conservation of the fluid mass (water + salt) is: where
It uses Monod kinetics to predict microbial growth, oxygen consumption, and CO2 production.
The BIOMARUN model allows tracking of two substrates (or food), two microbial communities, and up to 8 solutes, and it was used to predict oil biodegradation under natural conditions (Geng et al. 2015) [12] and with amendments (i.e., bioremediation) (Geng et al.
[13] The BIOMARUN model was also used to investigate the biodegradation of benzene in tidally influenced beaches (Geng et al. 2016) [14] To account for heat transfer through liquid and vapor transport, the model MARUN was coupled with equations for the migration of heat through conduction and vapor transport as documented closely in (Geng and M.C.
The TMARUN model was used to explain the presence of high salinity (100 g/L more than 3 times that of seawater) in the intertidal zone of beaches.