At the end of each definition in this Glossary there is a number in brackets. This indicates the number of the Study Session where the term is first used in this OpenWASH module.

Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

Page:  1  2  3  4  5  6  7  8  (Next)



with oxygen; the term usually applies to microbial decomposition processes that take place where air is present (5)


ability to pay for a product or service (13)

agricultural waste

waste that comes from farming (1)


without oxygen; the term usually applies to microbial decomposition that takes place in the absence of air (5)

anaerobic digestion

decomposition of organic material by micro-organisms in the absence of oxygen to produce biogas (5)

anaerobic pond

first stage in a waste stabilisation pond system that consists of a deep pond  where anaerobic decomposition takes place (6)


a type of composting latrine that does not require emptying. When the pit is full, a tree is planted in it and a new pit is dug (5)

ash content

percentage of solid material remaining when all the combustible material in a waste has been burned (7)

Page:  1  2  3  4  5  6  7  8  (Next)