Purifications,Water

《英文msh詞典》Purifications,Water
[入口詞] Purifications,Water
[主題詞] Water Purification
[英文釋義] Any of several processes in which undesirable impurities in water are removed or neutralized; for example,chlorination,filtration,primary treatment,ion exchange,and distillation. It includes treatment of waste water to provide potable and hygiene water in a controlled or closed environment as well as provision of public drinking water supplies. (From McGraw-Hill Dictionary of Scientific and Technical Terms,4th ed)