Опубликовано в "Бизнес, Бизнес", язык - English. 5 страниц.
Water is a necessity for human existence, which plays a vital role in defining growth. Water treatment can be defined as a procedure of making water acceptable for precise use such as irrigation, drinking, industrial supplies and river flow conservation. Water treatment implies development where impurities such as biological contaminants, undesirable chemicals, suspended solids, and gases are detached from polluted water. Еще
