Water treatment is a process carried out to improve the quality of water so that it can be accepted or used for end-use under certain conditions. These conditions include irrigation, industrial water supply, river flow maintenance to drinking.
Chemical cleaning is a disinfection process, which involves the use of strong chemical products. Mechanical cleaning usually involves the use of a product, one that can effectively disinfect a specific surface or area, to coat a specific surface with a physical protective barrier.
Pharmaceutical engineering is a branch of engineering focused on discovering, formulating, and manufacturing medication, analytical and quality control processes, and on designing, building, and improving manufacturing sites that produce drugs.