Biblio:Design Considerations for Simplified Sewer Network in Informal Settlements

Design Considerations for Simplified Sewer Network in Informal Settlements

publication coll. Methodologies & Application from documented experience n° 3 Jan 2021 ; 32 pages anglais

Ed. UPM - Munich
Téléchargeable sous format: PdF

(1 670 ko)
Abstract:
A simplified sewer network describes a sewerage network that is constructed using smaller diameter pipes laid at a shallower depth and at a flatter gradient than Conventional Sewers. Simplified sewer network allows for a more flexible design at lower investment costs.
Conceptually, simplified sewerage is the same as Conventional Gravity Sewerage, without considering the unnecessary conservative design standards, and with design features that are better adapted to the local situation. The pipes are usually laid within the property boundaries, through either the back or front yards, rather than beneath the central road, allowing for fewer and shorter pipes. Because simplified sewers are typically installed within the condominium, they are often referred to as condominial sewers. The pipes can also be routed in access ways, which are too narrow for heavy traffic, or underneath pavements (sidewalks). Since simplified sewers are installed where they are not subjected to heavy traffic loads, they can be laid at a shallow depth and little excavation is required. Contents:
1. Introduction .1
2. Overview .2
3. Strategy .3
3. 1 Strategy Definition. 3
3. 2 Experience in Bangladesh. 4
3. 3 Experience in Lebanon. 5
3. 4 Defining Sampling Strategies . 6
3. 5 Analytical Parameters . 7
4. Preparation . 11
4. 1 Laboratory . 11
4. 2 Staff. 13
4. 3 Materials & Equipment. 15
4. 4 DIY Sampling Devices . 17
5. Collection .22
5. 1 PPE & Safety . 22
5. 2 Quality Assurance . 23
5. 3 Quality Control . 23
5. 4 Sampling Methodologies. 24
5. 5 Sample Preparation. 31
5. 6 On-Site Measurements. 33
5. 7 Transportation . 35
6. Preservation .36
6. 1 Methods . 36
7. Analysis .37
7. 1 PPE & Laboratory Safety . 37
7. 2 Data Log . 38
8. Analysis Protocols .39
9. Credits .47

Mots clefs:

assainissement (CI) (DT) (OP) , eaux usées (évacuation des ) (CI) (DT) (OP) , humanitaire, urgentiste (CI) (DT) (OP)

Editeur/Diffuseur:

UPM - UPM Umwelt-Projekt-Management GmbH - Munich - Allemagne

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