Boundary conditions

The outer and inner boundary conditions for dissolved species u and biomass x are defined by:

ju = kLu*(uB(t) — u/s(t,

z = L/, outer boundary

15.12

jx = :K(U)■XfL/,

z = L/, outer boundary

15.13

ju = 0,

z = 0, inner boundary

15.14

jx = 0

z = 0, inner boundary

15.15

where kLU = DwU/Lw, is the mass transfer rate coefficient (L2T^), and u/ = dissolved species concentration at the liquid/biofilm interface (ML-3).

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