Essentialism, In ontology, the view that some properties of objects are essential to them. The âessenceâ of a thing is conceived as the totality of its essential properties. Theories of essentialism differ with respect to their conception of what it means to say that a property is essential to an object.
Decontamination is the process of removal of contaminating pathogenic microorganisms from the articles by a. process of sterilization or disinfection. It is the use of physical or chemical means to remove, inactivate, or destroy. living organisms on a surface so that the organisms are no longer infectious.
Microorganisms used to perform the function of bioremediation are known as bioremediators. However, not all contaminants are easily treated by bioremediation using microorganisms. For example, heavy metals such as cadmium and lead are not readily absorbed or captured by microorganisms. A recent experiment, however, suggests that fish bones have some success absorbing lead from contaminated soil. Bone char has been shown to bioremediate small amounts of cadmium, copper, and zinc.