Urban Poor Sanitation Design Technical Drawings and Planning View
Ensuring basic sanitation for urban poor, this project involves designing and planning technical drawings with a focus on upscaling basic sanitation facilities. The content provides insight into the context of the session, potential DTF layouts, considerations during layout preparation, and baseline data collection processes like marking boundaries and raster leveling. The images depict various DTF layout options and methodologies for effective arrangement of modules. Overall, the project aims to improve sanitation infrastructure for vulnerable urban communities.
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Presentation Transcript
Upscaling Basic Sanitation for the Urban Poor (UBSUP) Preparation of final design Technical Drawings Plan View 9/19/2024 1
Content Questions you might to ask yourself: What is the context of this session? How do potential DTF layouts looks like? What has to be considered during layout preparation? 9/19/2024 2
What is the context of this session? The SafiSan Toolkit This session 9/19/2024 3
How do potential DTF layouts looks like? VFCW VFCW SDRB ABR ST CA RB/BT Storage 9/19/2024 4
How do potential DTF layouts looks like? VFCW VFCW SDRB ABR ST CA Storage 9/19/2024 5
How do potential DTF layouts looks like? VFCW VFCW ABR ST SDRB CA Storage 9/19/2024 6
How do potential DTF layouts looks like? VFCW VFCW ABR CA SDRB ST RB/BT Storage 9/19/2024 7
Baseline data collection - Boundaries Mark corners (e.g. with metal rods) Ensure sufficient distance (riparian) to water bodies as per NEMA 9/19/2024 8
Design - Boundaries 9/19/2024 9
Baseline data collection - Raster levelling Take levels according to a fix raster (20-30 points) To consider the existing ground level/ topography during the proper arrangement of the modules! 9/19/2024 10
Design Raster Levelling 9/19/2024 11
Baseline data collection - Arrangement Arrange all required modules in an operational manner Consider space for manoeuvring of exhauster trucks Consider access for exhauster trucks to ST and ABR for de-sludging Consider access to all treatment modules for O&M Ensure proper arrangement of pipes, bypass pipes and inspection boxes To determine in the BoQs the number of inspection/bypass chambers! 9/19/2024 12
Excursion: How are ST and ABR de-sludged? To avoid a fixed pumping station (requires energy) exhauster trucks can be used to de-sludge the DTF modules Exhausters pump sludge from bottom of ST and ABR (pump head approx. 3m) Exhausters discharge sludge by gravity on top of SDRB (via hose) SDRB surface must be constructed slightly lower than discharge valve of exhauster truck SDRB outlet pipe must be constructed slightly higher than the inlet of the receiving treatment module (according to the DTF layout either the RB or ST or ABR or VFCW) To be considered in preparation of cross-section 9/19/2024 13
Design - Arrangement VFCW VFCW Operation ABR CA Regular Maintenance SDRB Occasional Maintenance ST RB/BT Storage 9/19/2024 14
Baseline data collection - Distances Determine distances: VFCW outlet to final discharge point Outlet of ABR-BT to VFCW ST outlet to ABR inlet Outlet of RB/BT to ST inlet Drainage pipe from SDRB to ABR/VFCW (Bypass pipes) (Site boundaries) Required to determine in the BoQs the length of PVC pipes (connection & bypass)! 9/19/2024 15
Design Distances A VFCW VFCW Examples: A: 40m B: 7m C: 9m D: 4m E: 4m B E ABR CA C SDRB ST D RB/BT Storage 9/19/2024 16
Do you have any questions, remarks or suggestions? 9/19/2024 17
