ABSTRACT

Biological processes involved in pollution control and bioenergy production are principally chemical reactions that are biologically mediated, and therefore can be otherwise referred to as biochemical processes. These biochemical reactions require external source of energy for initiation. Microorganisms and particulate organic matter in general, including those produced during biological oxidation, have a higher adsorption capacity than inert materials due to their relatively higher surface area. The combined physico-chemical and biological processes associated with adsorption of pollutants is referred to as "biosorption." This chapter also presents an overview of the key concepts discussed in the subsequent chapters of this book. The book covers detailed characterization of common anaerobic systems. It addresses Biochemical methane potential assays and analysis. The book also covers detailed analyses of sulfide-removal techniques in anaerobic systems. It covers posttreatment options for anaerobically treated wastewater for carbon and nitrogen reduction.