Water is considered by many to be a valuable renewable resource, but this has been in part because humans have developed technology that allows us to clean much of the water that we dirty. Water treatment is undoubtedly one of the most important processes that we utilize today. Water treatment basically means making water more acceptable for use. The water may be used for human consumption, for medical purposes or procedure, for industrial processes, or for something else entirely. In all of these cases, the water likely had to undergo some form of treatment to remove unwanted contaminants before it could be used again.