|
|
Line 1: |
Line 1: |
− | [[Image:Ceramic_filter_icon.png|right]]
| |
| | | |
− | A new alternative to conventional ceramic candle filters is the CSP filter. This model has a pot-shaped ceramic filtering element that is treated with colloidal silver. It has a bigger capacity and is easier to produce locally than candle filters. Also leakages are easier to detect than in candle filters so there is less risk in use.
| |
− |
| |
− | Evaluations indicate that CSP filters remove turbidity and harmful bacteria that cause diarrhoea, cholera and other waterborne diseases.
| |
− |
| |
− |
| |
− | [[Image:Ceramic_filter.PNG|thumb|right|150px|Family using a CSP filter in Zapatera, Nicaragua.]]
| |
− |
| |
− |
| |
− | {{procontable | pro=
| |
− | - Bigger capacity, easier to produce locally and safer than candle filters. <br>
| |
− | | con=
| |
− | }}
| |
− |
| |
− | == Capacity ==
| |
− |
| |
− | 10-20 litres/day. If filled twice a day the filter produces enough for a family of six.
| |
− |
| |
− |
| |
− | == Maintenance ==
| |
− |
| |
− | Cleaning with a brush and changing the ceramic element every 2-3 years.
| |
− |
| |
− | == Costs ==
| |
− |
| |
− | Complete filter (off-factory): US$ 8 in Cambodia US$ 10-15 in Nicaragua.
| |
− | Field studies have shown that investment in a filter is "paid back" within 3 to 6 months because of savings on expenses for medicines, fuel wood and labour.
| |
− |
| |
− | == Applying conditions ==
| |
− | Cost of introduction:</b> US$ 15,000 - 30,000 for project incl. training, machinery and a first production of 500 filters. US$ 50,000 - 100,000 for project incl. production shop, training, first promotion, and 5,000 filters.
| |
− |
| |
− | == Examples and initiatives ==
| |
− | 150,000 filters are used in Central America, Asia and Africa.
| |
− |
| |
− | CARE, UNICEF, Red Cross amongst others use the filter.
| |
− |
| |
− | In Nicaragua, Guatemala and Cambodia the production of this filter is a commercial activity and production is starting up in six other countries.
| |
− |
| |
− |
| |
− | == Production manual ==
| |
− |
| |
− | [http://s189535770.onlinehome.us/pottersforpeace/?page_id=125 s189535770.onlinehome.us/pottersforpeace/?page_id=125]
| |
− |
| |
− | {{Joinus}}
| |
− |
| |
− | == Movie ==
| |
− | * construction video [http://nl.youtube.com/watch?v=JSBU-MLwDmk&feature=related nl.youtube.com/watch?v=JSBU-MLwDmk&feature=related ]
| |
− | * Explanation Espanol [http://www.youtube.com/watch?v=-2c2bmg7yCM www.youtube.com/watch?v=-2c2bmg7yCM ]
| |
− | * Panel Discussion English [http://video.google.com/videoplay?docid=6838040406197916953&hl=en video.google.com/videoplay?docid=6838040406197916953&hl=en ]
| |
− |
| |
− | == External links ==
| |
− | * [http://www.pottersforpeace.org/ www.pottersforpeace.org/ ]
| |
− | * [http://www.who.org www.who.org ]
| |
− | * [http://www.potpaz.org www.potpaz.org ]
| |
− | * [http://www.ceramicatamakloe.com www.ceramicatamakloe.com ]
| |
− | * [http://www.elfiltron.com www.elfiltron.com]
| |