Abstract
AbstractThe treatment of wastewater is a panacea for the protection of environmental and public health. Biological methods of wastewater treatment that are environmentally friendly are gradually replacing the other conventional methods of treatment. Among the biological methods that have been studied over the years, the use of microbial enzymes to develop environmentally friendly bioremediation processes remains a potential to be tapped into. Microorganisms are ubiquitous organisms and can be cultured from wastewater and are good sources of enzymes with great metabolic catalytic activity capable of reducing complex toxic compounds into less harmful ones. This chapter, therefore, discusses the different classes of microbial enzymes based on their modes of action and their distribution in activated sludge (AS), their characteristics (such as effect of temperature and pH), methods of extraction, and their applications in wastewater on municipal and industrial scales.
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