second way is Reverse osmosis. In this process, water is passed through a semipermeable membrane, and is generally used in combination with carbon. This book contains information about the history of water, disease, and sanition. It also discusses heath issues and touches on bottle water and purification. We can see clearly that the contaminants that have polluted drinking water have been a reflection of society and its mores. The most important lesson to be learned from this is that the maintenance of high-quality drinking water is a process that changes with the changes that occur in science, society and knowledge....
