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Last updated 08 June 2018
Last updated 27 April 2018
Last updated 27 April 2018
Last updated 27 April 2018
Last updated 27 April 2018
Last updated 27 April 2018
Ceramic candle filters are simple devices made out of clay and used to filter drinking water in order to removes turbidity, suspended materials and…
Last updated 27 April 2018
Offering a training certificate is useful to the trainer because it allows you to leave a more lasting impression on those who you are training and…
Last updated 27 April 2018
A cesspit, or cesspool is a tank pit used for the temporary collection and storage of sewage or waste. The pit is sometimes lined with bricks or…
Last updated 27 April 2018
Last updated 27 April 2018
Gully plugs, also called check dams, are mainly built to prevent erosion and to settle sediments and pollutants. Furthermore, it is possible to keep…
Last updated 27 April 2018
Children’s Hygiene and Sanitation Training (CHAST) is an approach for promoting personal hygiene among children. CHAST is based on the well-…
Last updated 27 April 2018
Water disinfection by chlorination was massively introduced in the early twentieth century. It set off a technological revolution in water treatment…
Last updated 27 April 2018