How is the process of adsorption defined?

The process of adsorption is defined as adhering a specific contaminant to a surface. This process occurs when molecules from a gas or liquid adhere to the surface of a solid or liquid, forming a thin film. In the context of environmental cleanup or hazardous material management, adsorption is a fundamental mechanism used to remove contaminants from various media. For instance, activated carbon is often utilized due to its large surface area, which provides ample opportunity for contaminants to bond with its surface, effectively trapping them and preventing their release back into the environment.

Understanding adsorption is crucial for professionals working with hazardous materials because it helps in choosing the right absorbent materials and technologies for cleanup efforts. Recognizing this process can enhance the strategies involved in managing spills, contaminated water, or even airborne pollutants. The other options do not accurately describe the adsorption process, making it clear why the definition focuses specifically on the adherence aspect.