 |
| Chambrland filter |
 |
| Katadyn filter |
Many ceramic filters are used to water treatment. Some of
them are: Pasteur Chambrland filter, Berkefeld filter and Katadyn filter. For
each filter there some essential part for purification purpose, like ‘candle’
in Chamberland filter, infusoril earth (kieselgurh) and silver catalyst coating
on Berkefeld and Katadyn filters respectively.
 |
| Berkefeld filter |
In Katadyn filter there takes place “oligodynamic action”
and helps to destroy bacteria coming to silver coating surface. These types of
ceramic filters are often creating a hindrance to the bacterium and impurities
on water but them passes viruses. So, they are not 100% safe for purification
purpose. Also such type filter s is liable to sediment by bactiriae and impurities.
Therefore filter candles should be cleaned by rubbing with any hard material
and need to be boiled weekly. For cleaning purpose running water is more good
than stagnant and use purified water for cleaning. These types of ceramic filters are not suitable
for Indian condition because our water contents are naturally filled with
impurities like turbidity and high content of minerals, besides this, filters
are not legible to destroy viruses. Although ceramic filters are effective for
small scale purification.
No comments:
Post a Comment