Part Iv

THEORY: MODELING OF IDEAL ATTACHED GROWTH REACTORS

15. Biofilm Modeling 715

15.1 Nature of Biofilms 715

15.2 Effects of Transport Limitations 721

15.3 Effects of Multiple Limiting Nutrients 747

15.4 Multispecies Biofilms 749

15.5 Key Points 755

15.6 Study Questions 757 References 759

16. Aerobic Growth of Biomass in Packed Towers 763

16.1 Model for Substrate Removal in a Packed Tower 764

16.2 Performance of an Ideal Packed Tower 768

16.3 Other Factors Not Considered in Model 777

16.4 Other Packed Tower Models 780

16.5 Key Points 783

16.6 Study Questions 784 References 785

17. Aerobic Growth of Heterotrophs in Rotating

Disc Reactors 787

17.1 Model for Substrate Removal in a Single Rotating

Disc Reactor 788

17.2 Performance of a Single Rotating Disc Reactor 793

17.3 Model for Substrate Removal in a Chain of Rotating

Disc Reactors 799

17.4 Performance of a Chain of Rotating Disc Reactors 799

17.5 Other Rotating-Disc Reactor Models 801

17.6 Key Points 805

17.7 Study Questions 805 References 806

18. Fluidized Bed Biological Reactors 809

18.1 Description of Fluidized Bed Biological Reactor 809

18.2 Fluidization 813

18.3 Modeling Fluidized Bed Biological Reactors 826

18.4 Theoretical Performance of Fluidized Bed

Biological Reactors 832

18.5 Sizing a Fluidized Bed Biological Reactor 834

18.6 Key Points 836

18.7 Study Questions 837 References 839

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