Axel Heinemann: 1 revision

2014-12-15T08:43:55Z

1 revision

Franz Schreier at 11:37, 11 December 2014

2014-12-11T11:37:34Z

New page

{{Powering Agriculture Technology Database
|PAT quality check=Yes
|PAT Name=Solar Water Purification
|PAT Picture=Solar Water Purification.jpg
|PAT Type RE=Renewable Energy
|PAT Type Alternative=Alternative Methodology
|PAT Description="Solar water disinfection is a type of portable water purification that uses solar energy, in one or more ways, to make contaminated water safe to drink by ridding it of infectious disease-causing biological agents such as bacteria, viruses, protozoa and worms. However, disinfection may not make all kinds of water safe to drink due to non-biological agents such as toxic chemicals or heavy metals. Consequently, additional steps beyond disinfection may be necessary to make water clean to drink.

There are three primary subsets of solar water disinfection:

Electric. Solar disinfection using the effects of electricity generated by photovoltaic panels (solar PV).

Heat. Solar thermal water disinfection.

UV. Solar ultraviolet water disinfection.

Solar disinfection using the effects of electricity generated by photovoltaics typically uses an electrical current to deliver electrolytic processes which disinfect water, for example by generating oxidative free radicals which kill pathogens by damaging their chemical structure. A second approach uses stored solar electricity from a battery, and operates at night or at low light levels to power an ultraviolet lamp to perform secondary solar ultraviolet water disinfection.
Solar thermal water disinfection uses heat from the sun to heat water to 70C-100C for a short period of time. A number of approaches exist here. Solar heat collectors can have lenses in front of them, or use reflectors. They may also use varying levels of insulation or glazing. In addition, some solar thermal water disinfection processes are batch-based, while others (through-flow solar thermal disinfection) operate almost continuously while the sun shines. Water heated to temperatures below 100C is generally referred to as Pasteurized water.
Solar ultraviolet water disinfection, also known as SODIS, is a method of disinfecting water using only sunlight and plastic PET bottles. SODIS is a free and effective method for decentralized water treatment, usually applied at the household level and is recommended by the World Health Organization as a viable method for household water treatment and safe storage. SODIS is already applied in numerous developing countries. Educational pamphlets on the method are available in many languages, each equivalent to the English-language version.

Source: http://en.wikipedia.org/wiki/Solar_water_disinfection
|PAT Technology Application Solar=Solar
|PAT Value Other=Purification
|PAT Actions Washing=Washing
|PAT Actions Irrigation=Irrigation
|PAT Actions Animal Feeding=Animal feeding
|PAT Actions Pest Management=Pest Management
|PAT Actions Sanitation=Sanitation
|PAT Commodity Fruits Vegetables=Fruits and vegetables
|PAT Dev Region Worldwide=N/A
|PAT Dev Region South Asia=
|PAT Dev Country South Asia=
|PAT Dev Region Africa=
|PAT Dev Country Africa=
|PAT Dev Region East Asia=
|PAT Dev Country East Asia=
|PAT Dev Region Europe=
|PAT Dev Country Europe=
|PAT Dev Region Latin America=
|PAT Dev Country Latin America=
|PAT Dev Region Middle East=
|PAT Dev Country Middle East=
|PAT Dev Region North America=
|PAT Dev Country North America=
|PAT Dev Region Not Available=Region of development cannot be named
|PAT Dep Region Worldwide=None
|PAT Dep Region South Asia=
|PAT Dep Country South Asia=
|PAT Dep Region Africa=
|PAT Dep Country Africa=
|PAT Dep Region East Asia=
|PAT Dep Country East Asia=
|PAT Dep Region Europe=
|PAT Dep Country Europe=
|PAT Dep Region Latin America=
|PAT Dep Country Latin America=
|PAT Dep Region Middle East=
|PAT Dep Country Middle East=
|PAT Dep Region North America=
|PAT Dep Country North America=
|PAT Dep Region Not Available=
|PAT Dep Pot Region Worldwide=Worldwide
|PAT Dep Pot Region South Asia=
|PAT Dep Pot Country South Asia=
|PAT Dep Pot Region Africa=
|PAT Dep Pot Country Africa=
|PAT Dep Pot Region East Asia=
|PAT Dep Pot Country East Asia=
|PAT Dep Pot Region Europe=
|PAT Dep Pot Country Europe=
|PAT Dep Pot Region Latin America=
|PAT Dep Pot Country Latin America=
|PAT Dep Pot Region Middle East=
|PAT Dep Pot Country Middle East=
|PAT Dep Pot Region North America=
|PAT Dep Pot Country North America=
|PAT Dep Pot Region Not Available=
|PAT Manufacturers=N/A
|PAT Economics=Low cost;
|PAT Technology Development Level=Pilot projects and irst implementation;
|PAT Maintenance=Low: Technology to be maintained through its life cycle requires less common tools and/or training is required for maintenance;
|PAT Infrastructure=Low: Technology can be developed with less common tools, low development level supporting technologies and moderately trained personnel; Training and education;
|PAT Required Resources Manufacture=Metal, plastics, simple tools;
|PAT Required Resources Operation=None;
|PAT Deployment Level=Prototype testing and local availability;
|PAT Deployment Capability=The technology can be widely deployed, limited by education;
|PAT Requirements for Deployment=Education and training, establishing manufacturing and distribution structures;
|PAT Relevance Autonomy=Yes;
|PAT Environment Impacts=None;
|PAT Bio-Cybernetic=Yes;
|PAT Links=http://en.wikipedia.org/wiki/Solar_water_disinfection

http://www.builditsolar.com/Projects/Cooking/cooking.htm#SolarStills

http://www.gabrielediamanti.com/projects/eliodomestico---how-does-it-work/

http://practicalaction.org/solar-distillation-1

http://web.mit.edu/newsoffice/2013/clean-water-solar-powered-system-0911.html
|PAT Category=Solar Energy
|PAT Pumping=
|PAT Lighting=
|PAT Heating=
|PAT Cooling=
|PAT Wind=
|PAT Biomass=
|PAT Biofuel=
|PAT Biogas=
|PAT Humans=
|PAT Animals=
|PAT Biochar=
|PAT Composte=
|PAT Insects=
|PAT Plants=
|PAT Others=
}}

Solar Water Purification (PA Technology) - Revision history

Axel Heinemann: 1 revision

Franz Schreier at 11:37, 11 December 2014