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(Latest | Earliest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)- 03:14, 24 May 2012 Concrete-lined earthen reservoir (hist) [1,845 bytes] Winona (Talk | contribs) (Created page with "Lined earthen reservoirs can be built in natural depressions, or constructed by excavating and building a dam around the reservoir. If possible, the quantities of excavation and ...")
- 02:56, 24 May 2012 Oxfam emergency tanks (hist) [2,582 bytes] Winona (Talk | contribs) (Created page with "Specially developed for emergency aid use with pre-positioned inlet, outlet & drain valves and a drinking water approved liner - these tanks are suitable for use in emergency and...")
- 02:50, 24 May 2012 Surface level tanks - Level 1 (hist) [264 bytes] Winona (Talk | contribs) (Created page with "Brick cement tank Oxfam emergency tanks Concrete-lined earthen reservoir Galvanzed iron sheets Plastic-lined tank Small household ferrocement watertanks (jars) Classica...")
- 00:40, 24 May 2012 Commercial elevated tanks (hist) [1,876 bytes] Winona (Talk | contribs) (Created page with "Commercial elevated tank made and provided by Galaxy. The GALAXY™ range of elevated water storage tanks with capaciti...")
- 00:14, 24 May 2012 Reinforced concrete reservoir (hist) [3,388 bytes] Winona (Talk | contribs) (Created page with "Reinforced concrete reservoirs are used to store clean water for release on demand. They are usually made of concrete reinforced with steel bars or steel mesh, although some low-...")
- 23:38, 23 May 2012 Elevated steel reservoir (hist) [3,735 bytes] Winona (Talk | contribs) (Created page with "An elevated steel reservoir stores clean water in a steel tank on a raised stand or tower. The elevation of the tank provides the water pressure to all points in the pressure zon...")
- 23:34, 23 May 2012 Elevated storage tanks - Level 1 (hist) [3,288 bytes] Winona (Talk | contribs) (Created page with "Elevated steel reservoir Reinforced concrete reservoir Commercial elevated tanks Concrete-lined earthen reservoir")
- 22:22, 23 May 2012 DelAgua (hist) [2,041 bytes] Winona (Talk | contribs) (Created page with "Founded in 1985 and spun out of the University of Surrey in 2006, DelAgua Water Testing Limited designs, manufactures, distributes and supports water testing and treatment produc...")
- 21:50, 23 May 2012 Wagtech kits (hist) [3,090 bytes] Winona (Talk | contribs) (Created page with "[[Image:Wagtech kit.jpg|thumb|right|300px|Widely used by the humanitarian organisations involved in the immediate aftermath of natural disasters, large scale emergencies or refug...")
- 21:23, 23 May 2012 Testing - Level 1 (hist) [1,828 bytes] Winona (Talk | contribs) (Created page with "Testing - Easygel Testing - Hach Pathoscreen test")
- 20:16, 23 May 2012 CT - Physical - Level 1 (hist) [2,850 bytes] Winona (Talk | contribs) (Created page with "Sedimentation Pasteurization/Boiling UV treatment (Sodis) Aeration Distillation Coagulation/flocculation Storage and sedimentation")
- 14:32, 23 May 2012 Fact sheet (hist) [2,113 bytes] Mbesteman (Talk | contribs) (Created page with "Fact sheets and drawings are designed as part of community development programs with the aim of assisting people in self-help groups (Village Action Groups). The focus is on rura...")
- 01:34, 23 May 2012 De-fluoridation (hist) [4,954 bytes] Winona (Talk | contribs) (Created page with "High levels of fluoride in groundwater has been reported parts of in Ethiopia, Malawi, Kenya and Tanzania and can lead to health problems including dental fluorosis, osteoscleros...")
- 23:49, 22 May 2012 Ozonation (hist) [4,814 bytes] Winona (Talk | contribs) (Created page with "Ozone is a powerful oxidant and has many uses in water treatment, including oxidation of organic chemicals. Ozone can be used as a primary disinfectant. Ozone gas (O3) is formed ...")
- 23:48, 22 May 2012 Chemical disinfection / Free chlorine (hist) [1,466 bytes] Winona (Talk | contribs) (Created page with "Free chlorine molecule. Free chlorine does the hard work of killing bacteria and oxidizing contaminants. When you add chlorine to w...")
- 20:07, 22 May 2012 Chemical disinfection/Free chlorine (hist) [1,466 bytes] Winona (Talk | contribs) (Created page with "File:free chlorine chart.jpg")
- 19:00, 22 May 2012 Chlorination in piped systems (hist) [4,534 bytes] Winona (Talk | contribs) (Created page with "Floating bowl chlorinator can be placed in tanks or reservoirs. Photo: WHO.")
- 18:59, 22 May 2012 CT - Chemical - Level 1 (hist) [2,819 bytes] Winona (Talk | contribs) (Created page with "Chlorination in piped systems Chemical disinfection/Free chlorine WATAsol Chlorine Dispenser Ozonation De-fluoridation")
- 19:45, 21 May 2012 Membrane filtration (hist) [5,178 bytes] Winona (Talk | contribs) (Created page with "The membrane processes of most significance in water treatment are reverse osmosis, ultrafiltration, microfiltration and nanofiltration. These processes have traditionally been a...")
- 19:18, 21 May 2012 Active carbon (hist) [4,286 bytes] Winona (Talk | contribs) (Created page with "[[Image:activated_carbon_bags.jpg|thumb|right|250px|Activated carbon bags for sell and use in water treatment systems. Photo: [http://www.alibaba.com/product-gs/246397546/activa...")
- 20:06, 18 May 2012 Granular filtration (hist) [3,095 bytes] Winona (Talk | contribs) (Created page with "In water treatment, granular filtration is a process where water flows through granular material (often sand) while suspended solids (sand, clay, iron and aluminum flocs) are ret...")
- 18:54, 18 May 2012 CT - Filtration - Level 1 (hist) [1,943 bytes] Winona (Talk | contribs) (Created page with "Granular filtration Upflow roughing filter Slow sand filter Active carbon Membrane filtration (microfiltration, ultrafiltration, nanofiltration, revers...")
- 00:28, 18 May 2012 Centralized Treatment (hist) [5,304 bytes] Winona (Talk | contribs) (Created page with "In this strategy, the population is supplied with drinking water from large, centralised water treatment plants. The treated water is piped to all the communities in the geograph...")
- 19:44, 17 May 2012 Aeration (hist) [2,644 bytes] Winona (Talk | contribs) (Created page with "Multicone aerator. Photo: Infilco Degremont, Inc. Aeration is a unit process in which air and water are brought into intimate conta...")
- 19:06, 17 May 2012 Storage / Pre-settlement (hist) [1,380 bytes] Winona (Talk | contribs) (Created page with "Storage and sedimentation. Photo: WHO. The quality of raw water can be improved considerably by storage. During storage...")
- 19:02, 17 May 2012 Natural coagulation / Flocculation (hist) [1,198 bytes] Winona (Talk | contribs) (Created page with "Moringa seed pods used to coagulate sediment in water. Photo: moringanews.org The sedimentation process can be quickened by add...")
- 18:54, 17 May 2012 Natural Coagulation/Flocculation (hist) [1,198 bytes] Winona (Talk | contribs) (Created page with "Moringa seed pods used to coagulate sediment in water. Photo: moringanews.org The sedimentation process can be quickened by add...")
- 18:36, 17 May 2012 Solar Pasteurization (hist) [1,620 bytes] Winona (Talk | contribs) (Created page with "Box Cooker. <br>Photo: Solar Cooker International Pasteurization is the process of disinfecting water by heat or radiation, sho...")
- 01:44, 17 May 2012 HWTS - Physical - Level 1 (hist) [3,649 bytes] Winona (Talk | contribs) (Created page with "UV treatment / Solar disinfection (SODIS) Solar Pasteurization Desalination/Evaporation Boiling Chulli Pasteurization [[Natural Coagulation/Flocculation]...")
- 07:44, 16 May 2012 Social business approaches (hist) [5 bytes] Marktielewestra (Talk | contribs) (Created page with "empty")
- 23:38, 15 May 2012 HWTS - Chemical - Level 1 (hist) [3,154 bytes] Winona (Talk | contribs) (Created page with "[http://akvo.org/wiki/index.php/Chlorine_%28Sodium_Hypochlorite%29 Chlorine (Sodium Hypochlorite)] [[Image:NaDCC.jpg|thumb...")
- 21:42, 15 May 2012 Chemical Coagulants (hist) [1,586 bytes] Winona (Talk | contribs) (Created page with "Alum block. Photo: www.cdc.org The sedimentation process can be quickened by adding coagulants to the water. Chemical coagulants are c...")
- 20:50, 15 May 2012 HWTS - chemical (hist) [95 bytes] Winona (Talk | contribs) (Created page with "Chlorination methods Chlorine (Sodium Hypochlorite) Chlorine (NaDCC) WATAsol Chemical Coagulants")
- 00:49, 15 May 2012 Chulli pasteurization (hist) [1,279 bytes] Winona (Talk | contribs) (Created page with "Chulli pasteurization. <br>Photo: Johnston, UNICEF.")
- 00:48, 15 May 2012 Chulli Pasteurization (hist) [0 bytes] Winona (Talk | contribs) (Created page with "chulli pasteurization. <br>Photo: Johnston, UNICEF.")
- 00:41, 15 May 2012 Upflow roughing filter (hist) [4,404 bytes] Winona (Talk | contribs) (Created page with "Upflow roughing filter. <br>Photo: WHO.")
- 00:29, 15 May 2012 Rapid sand/gravity filtration (hist) [2,255 bytes] Winona (Talk | contribs) (Created page with " The rapid sand filter differs from the slow sand filter in a variety of ways, the most important of which are the much greater filtration rate and the ability to clean automatic...")
- 23:39, 14 May 2012 Ceramic Silver Pot (CSP) filter (hist) [2,007 bytes] Winona (Talk | contribs) (Created page with "CSP filter (Ceramic Silver impregnated Pot model). <br>Photo: NWP. A new alternative to conventional ceramic candle filters is the CSP...")
- 23:12, 14 May 2012 Charcoal filter / Activated carbon (hist) [261 bytes] Winona (Talk | contribs) (Created page with " The Unicef upflow charcoal filter. <br>Photo: WHO. ==Acknowledgements== * [http://www.who.int/water_sanitation_health/...")
- 23:01, 14 May 2012 Iron filter (hist) [84 bytes] Winona (Talk | contribs) (Created page with "Building an iron filter. <br>Photo: PCWS")
- 21:47, 14 May 2012 HWTS - Filtration - Level 1 (hist) [5,767 bytes] Winona (Talk | contribs) (Created page with "[http://akvo.org/wiki/index.php/Straining_%28fabric_or_micro%29Straining (fabric or micro)] [[Image:CPF1.jpg|thumb|center|1...")
- 21:46, 14 May 2012 Arsenic filter (hist) [107 bytes] Winona (Talk | contribs) (Created page with " Arsenic removal system: oxidation method. <br>Photo: Ngai.")
- 21:24, 14 May 2012 Kisii filter bucket (hist) [137 bytes] Winona (Talk | contribs) (Created page with " Kisii filter bucket in use. <br>Photo: [http://www.handpump.org/kisii/ handpump.org]")
- 21:14, 14 May 2012 Straining (fabric or micro) (hist) [440 bytes] Winona (Talk | contribs) (Created page with "A woman uses a sari cloth to strain water. Photo: CAWST.")
- 23:53, 8 May 2012 Submersible pump (hist) [131 bytes] Winona (Talk | contribs) (Created page with " Submersible pump. <br> Photo: WHO.")
- 23:19, 8 May 2012 Centrifugal pump (hist) [5,861 bytes] Winona (Talk | contribs) (Created page with "Centrifugal pump. <br> Photo: WHO. The essential components of a centrifugal pump are the fast-rotating impeller and the casing. ...")
- 23:03, 8 May 2012 Deep-well piston handpump (hist) [165 bytes] Winona (Talk | contribs) (Created page with "Deep-well piston handpump")
- 22:46, 8 May 2012 Deep-well diaphragm pump (hist) [251 bytes] Winona (Talk | contribs) (Created page with "A deep-well diaphragm pump. <br> Photo: WHO.")
- 20:00, 8 May 2012 Diesel generator pump (hist) [5,236 bytes] Winona (Talk | contribs) (Created page with "Diesel generator pump")
- 19:57, 8 May 2012 Diesel generator (hist) [88 bytes] Winona (Talk | contribs) (Created page with "Diesel generator. <br>Drawing: WHO.")
