Quality Assessment of Water and Wastewater

ISBN: 9781566703826 出版年：1999 页码：279 Tomar, Mamta CRC Press

Water is the most basic need of mankind. Drinking water is considered the most essential use of water in life. Therefore it must be free of pathogens, toxins and carcinogens.Absolutley pure water does not exist in nature. Surface water absorbs particles, carbon dioxide and other gases and mixes with silt and inorganic matters from the envir