#=========================== constraints ======================================
CONSTRAINT initial
  CONCENTRATIONS
    C5H7O2N(aq) 1.d-5    T
    CH2O(aq)    1.d-3    T
    CO2(aq)     1.d-3    T
    N2(aq)      1.d-10   T
    NH4+        1.d-3    T
    NO2-        1.d-3    T
    NO3-        1.d-3    T
    O2(aq)      1.d-3    T
  /
  IMMOBILE
    C_consumption 1.d-10
  /
END
