CHEM 1106 Lecture Notes - Lecture 5: Exothermic Process, International System Of Units, Activation Energy

27 views2 pages

Document Summary

Bangladesh natural arsenic water contaminants were found after a humanitarian efort to drill numerous new drinking water wells. Detriment: not efective at removing viruses and certain chemicals. Beneit: process removes salts and minerals from impure water, it is used on ships, submarines, remote, and seaside communities. Detriment: expensive, large amounts of energy and infrastructure are required. Methods: several types of distillation, ion exchange, membrane process, etc. Bottled water is used as a solution to impure tap water; however, people purchased bottled water under the assumption that it is pure water, which is not always the case. In some cases, actually, bottled water is simply bottled tap water and can still contain contaminants. It often lacks luoride and may contain calcium and magnesium. Bottled water is more expensive than tap water. Bottled water is the fastest growing, most proitable segment of the beverage industry. The per capita consumption of bottled water is 30. 8 gallons.