ABSTRACT

Consumption of mineral resources increases year after year, and the associated growth of wastes necessitates the development and use of more advanced retrot and detoxication technologies. Traditional wastewater treatment and solid detoxication technologies are based on non-biological treatment methods. Alternative approaches are based on the use of microorganisms to decompose contaminants (Marrot et  al. 2006). Wastewater biotreatment and detoxication of toxic waste processes employed for

CONTENTS

20.1 Introduction ................................................................................................ 527 20.2 Batch and Continuous Processes of Growth of Microbial Cultures ... 528 20.3 Kinetics and Stoichiometry of Microbial Growth ................................. 529

20.3.1 Monod and Haldane-Type Kinetic Models ................................ 529 20.3.2 Stoichiometry of Microbial Growth ............................................530 20.3.3Alternative Models ........................................................................ 531 20.3.4 Steady State of Continuous Processes ......................................... 532

20.4 Modied Wastewater Biotreatment Methods ........................................533 20.5 Experimental Data and Interpretation of Model Parameters .............. 536

20.5.1 Interpretation of Parameters of Growth Kinetics...................... 536 20.5.2 Interpretation of Stoichiometric Parameters .............................. 537

20.6Bistability of Microbial Processes ............................................................ 539 20.6.1 Mechanism of Bistability under Formation of Partial

Oxidation Products ........................................................................ 539 20.6.2 Bistability under Biodegradation of Toxic Compounds ...........542 20.6.3 Bistability of Mixed Substrate Utilisation ..................................544