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Technical guidelines for designing a decentralised waste water treatment system

Guide technique pour la conception d'un système de traitement décentralisé des eaux usées
rapport Apr 2017 ; 27 pages
Aut. Abdullah Al-Muyeed
Ed. WaterAid - London
Téléchargeable sous format: PdF (1 290 ko)
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This guidance document helps with the implementation of a decentralised waste water treatment system or DWTS, based on the experience of several WaterAid country programmes and especially WaterAid Bangladesh.
A DWTS can be used to treat the waste water coming from houses and institutional settings, and represents an alternative to centralised treatment involving sewers and large treatment plants, and therefore large capital costs and running costs. A DWTS can be relatively compact, cheaper to install, and requires little maintenance and no energy input.
A DWTS typically consists of several elements: a septic tank, an anaerobic baffled reactor, an anaerobic filter, and a series of constructed wetlands. The exact dimensions and types of installations depend on many parameters, which are covered in this guideline.


Acteurs de coopération , Technicien

Mots clefs:

assainissement (CI) (DT) (OP) , eaux usées (traitement des ) (CI) (DT) (OP) , technologie (CI) (DT) (OP)

Pays concerné:

Bangladesh (CI) (DT) (OP)


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