Solar Water Purification

In 1991 the swiss federal institute for environmental science and technology began to investigate and implement sodis as a household water treatment option to prevent diarrhea in developing countries.

Solar water purification. Solar disinfection using the effect. It is a combination of two water purification processes the solar water disinfection system sodis and the solar distillation process. This method of water disinfection effectively rids the water of disease causing biological substances such as bacteria viruses and protozoa. A cross section of a water purification system.

Solar water disinfection in short sodis is a type of portable water purification that uses solar energy to make biologically contaminated water safe to drink. Solar disinfection sodis was developed in the 1980s to inexpensively disinfect water used for oral rehydration solutions. Here s what you need for a basic solar powered water purifier like the one shown in the figure. Solar water disinfection is a type of portable water purification that uses solar energy to make biologically contaminated water clean.

Solar water purification is a method of water disinfection that everyone should know about for emergency natural disaster or wilderness survival situations. A solar powered purification system the size of a microwave oven can yield up to 3 gallons of purified drinking water on a sunny day. A better purification system the reverse osmosis system consists of two photovoltaic solar panels that power a set of pumps that push both brackish well water and collected rain water through. Solar water decontamination system is a water purification system at household level based on solar radiation treatment and water distillation with additional use of solar heating.

Like all water purification methods solar water purification is not foolproof since the research indicates that certain pathogenic viruses and protozoa will still survive the treatment. It is simple effective and cheap. Water contaminated with non biological agents such as toxic chemicals or heavy metals require additional steps to make the water safe to drink. Solar water disinfection is usually accomplished using some mix of electricity generated by photovoltaics panels heat and solar ultraviolet light collection.

However it s far superior to drinking untreated water and has dramatically reduced the incidence of waterborne illnesses in developing nations.