|
|
| (8 intermediate revisions by 3 users not shown) |
| Line 1: |
Line 1: |
| − | [[Image:Ceramic_filter_icon.png|right]] | + | #REDIRECT [[Ceramic pot filter]] |
| − | | |
| − | 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.]]
| |
| − | | |
| − | {| border="1" cellpadding="5" cellspacing="0" align="center"
| |
| − | |-
| |
| − | ! width="50%" style="background:#efefef;" | Advantages
| |
| − | ! style="background:#ffdead;" | Disadvantages
| |
| − | |-
| |
| − | | valign="top" | Bigger capacity, easier to produce locally and safer than candle filters.<br>
| |
| − | | valign="top" |<br>
| |
| − | |}
| |
| − | | |
| − | | |
| − | == 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]
| |
| − | | |
| − | == External links ==
| |
| − | [http://www.who.org www.who.org ]
| |
| − | [http://www.potpaz.org www.potpaz.org ]
| |
| − | [http://www.elfiltron.com www.elfiltron.com]
| |
