A summary of the nitrifying and denitrifying conditions used for the model can be found in Tables 1 and 2, respectively. A complete list of stoichiometric matrices, reaction rates and other model parameters for both models can be found in the Supporting Information (Tables S1–S6).

Table 2

Parameter . | Symbol . | Value . | Units . | Source . |
---|---|---|---|---|

Concentrations in influent | ||||

Methanol (as COD) | C _{0,COD} | 720 (non-limiting) | mg L^{−1} | Chosen |

Nitrate | C _{0,NO3} | Range 0.0001–50 | mg L^{−1} | Varied |

Nitrite | C _{0,NO2} | 0 | mgN L^{−1} | Chosen |

Nitric oxide | C _{0,NO} | 0 | mgN L^{−1} | Chosen |

Nitrous oxide | C _{0,N2O} | 0 | mgN L^{−1} | Chosen |

Oxygen | C _{0,O2} | Range 0.00001–4 | mgO_{2} L^{−1} | Varied |

Biomass concentration in the biofilm | ||||

Concentration total redox mediators | C _{T,Med} | 0.01 | mol kg^{−1} | Pan et al. (2013) |

Biofilm thickness | L _{F} | 400 (base case) 5, 50, 400 (varied) | μm | Typical values |

Liquid flow rate | Q | 44 | mL min^{−1} | Chosen |

Liquid volume in the reactor | V _{b} | 4 | L | Chosen |

Biofilm surface area | A _{F} | 0.5 | m^{2} | Chosen |

Gas volume | V _{G} | 3.5 | L | Chosen |

Gas flow rate | Q _{G} | 2 | L min^{−1} | Chosen |

Gas-liquid mass transfer coeff. | k _{L}a | 100 | h^{−1} | Chosen |

Henry gas-liquid coefficient N_{2}O (25 °C) | H _{N2O} | 0.611 | mol mol^{−1} | CRC Handbook (2014) |

Parameter . | Symbol . | Value . | Units . | Source . |
---|---|---|---|---|

Concentrations in influent | ||||

Methanol (as COD) | C _{0,COD} | 720 (non-limiting) | mg L^{−1} | Chosen |

Nitrate | C _{0,NO3} | Range 0.0001–50 | mg L^{−1} | Varied |

Nitrite | C _{0,NO2} | 0 | mgN L^{−1} | Chosen |

Nitric oxide | C _{0,NO} | 0 | mgN L^{−1} | Chosen |

Nitrous oxide | C _{0,N2O} | 0 | mgN L^{−1} | Chosen |

Oxygen | C _{0,O2} | Range 0.00001–4 | mgO_{2} L^{−1} | Varied |

Biomass concentration in the biofilm | ||||

Concentration total redox mediators | C _{T,Med} | 0.01 | mol kg^{−1} | Pan et al. (2013) |

Biofilm thickness | L _{F} | 400 (base case) 5, 50, 400 (varied) | μm | Typical values |

Liquid flow rate | Q | 44 | mL min^{−1} | Chosen |

Liquid volume in the reactor | V _{b} | 4 | L | Chosen |

Biofilm surface area | A _{F} | 0.5 | m^{2} | Chosen |

Gas volume | V _{G} | 3.5 | L | Chosen |

Gas flow rate | Q _{G} | 2 | L min^{−1} | Chosen |

Gas-liquid mass transfer coeff. | k _{L}a | 100 | h^{−1} | Chosen |

Henry gas-liquid coefficient N_{2}O (25 °C) | H _{N2O} | 0.611 | mol mol^{−1} | CRC Handbook (2014) |

This site uses cookies. By continuing to use our website, you are agreeing to our privacy policy.