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Portable water purification devices and methods are available for disinfection and treatment in emergencies or in remote locations. Disinfection is the primary goal, since aesthetic considerations such as taste, odour, appearance, and trace chemical contamination do not affect the short-term safety of drinking water.
Carrying iodine for water purification is an imperfect but lightweight solution for those in need of field purification of drinking water. Kits are available in camping stores that include an iodine pill and a second pill (vitamin C or ascorbic acid ) that will remove the iodine taste from the water after it has been disinfected .
It can be implemented under a self-supply approach, but also under other approaches. The most ubiquitous method of household water treatment in the world is boiling. Other methods that have been advocated are point-of-use chlorination, SODIS, and various types of water filters.
Filtration as a method of water purification was established in the 18th century, and the first municipal water treatment plant was built in Scotland in 1832. However, the aesthetic value of water was important at the time, and effective water quality standards did not exist until the late 19th century. [18]
Safe household water storage is a critical component of a Household Water Treatment and Safe Storage (HWTS) system being promoted by the World Health Organization (WHO) worldwide in areas that do not have piped drinking water. In these areas, it is not uncommon for drinking water to be stored in a pot, jar, crock or other container in the home.
The household biosand filter was proposed by Dr. David Manz in the late 1980s at the University of Calgary, Canada. [4] The system was developed from the slow sand filter, a technology that has been used for drinking water purification since the 1800s. [3]
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related to: household water purification methods pdf fileYou really can't go wrong with this pitcher. - The Safe Healthy Home