STRUCTURAL AND ENGINEERING DRAWINGS - DECENTRALISED TREATMENT FACILITY (DTF) - Up-Scaling Basic Sanitation for the Urban Poor

Oct 29, 2026

Structural and engineering drawings for a Decentralised Treatment Facility (DTF) supporting Up-Scaling Basic Sanitation for the Urban Poor. The sheets present screen details for coarse and fine screening, including hinge, GMS plate and flat-bar fine screens with specified widths and thicknesses, and receiving bay components. Additional sections cover tanks and reactor elements, detailing reinforced concrete slabs, hardcore layers, inlet and outlet pipelines, siphon and drainage chambers, ventilation pipes with mosquito wire gauze, and cover types with reinforced fibre slabs. Scale references and sectional views support construction dimensions and connections.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages35

Reading Time1 h 28 min

AccessFree to download

Screen Details

Receiving Bay and Balancing Tank

Settler Tank

Siphon Chamber and Siphon Drainage Chamber

Base Slab and Walls-Plan

Anaerobic Baffled Reactor

Compartments and Beam B2

Cover Types

| | STRUCTURAL AND ENGINEERING DRAWINGS
DECENTRALISED TREATMENT FACILITY
(DTF)
Up-Scaling Basic Sanitation for the Urban Poor
(UBSUP)
Dec 2016
| | | --- | --- | --- | SCREEN DETAILS Hinge for the SECTION 2-2 COARSE AND FINE SCREEN SCALE 1:25 50mm WIDE x5mm THICK GMS PLATE FIXED TO RC WALLS WITH FISH TAIL LUGS (BOTTOM PLATE SIMILAR) GMS FINE SCREEN MADE OF 5mm x 50mm FLAT BARS AT 30mm c/c SPACING 50mm WIDE x5mm THICK GMS PLATE FIXED TO RC WALLS WITH FISH TAIL LUGS (BOTTOM PLATE SIMILAR) GMS FINE SCREEN MADE OF 5mm x 50mm FLAT BARS AT 15mm c/c SPACING RECEIVING BAY AND BALANCING TANK | | | | Notes: See Above | Index-No.: Description:
| Scale: As shown page:
| | --- | --- | --- | --- | --- | --- | |

8500

| | --- | | 8500
250mm THICK HARDCORE LAYER COMPACTED AND BLINDED
SECTION A-A SCALE 1:75
150mm REINFORCED CONCRETE SLAB
4300 4300

SECTION B-B SCALE 1:50
SECTION C-C SCALE 1:50

SETTLER TANK
| | | | | Notes: See Above | Index-No.: Description:
| Scale: As shown page:
| | --- | --- | --- | --- | --- | --- | | 200
8100
200
200600
5000 B C 2500
200
| | | | | | | | | | | | | | | | | | | | | NOTES

| | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 200

1
1

200 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
1325 200 450 200 1325 |

| | 900
| | | | | 900 140
| | | | 900 140
| | | | |
C
| | | |

| | | | |
| | |
| | 100mm Vent Pipe
COVER TYPE 1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 200

ROOF SLAB PLAN SCALE 1:75

SETTLER TANK | | | | | | | | | | | | | | | | | | | | | | | | | | Notes: See Above | Index-No.: Description: | Scale: As shown page:
| | --- | --- | --- | --- | --- | --- | SIPHON CHAMBER DN 75mm Siphon to Detail 200 1000 100mm Dia. 2m Long pvc Pipe 2 200 1000 SIPHON DRAINING CHAMBER 600 A 250mm Thick Compacted Hardcore 200 1400 BASE SLAB AND WALLS-PLAN SCALE 1:50 100mm Dia. pvc Nipple 100mm Dia. 90 degrees pvc bend Vent cowl with pvc Mosquito Wire Gauze 2003800 SECTION B-B SCALE 1:50 1400 200 Reinforced Fibre Cover Type 2 4nr Pre-cast concrete slabs size 750mmx 400mm x40mm 200 200 FGL 25mm Dia. 800mm Long round bar bent and embedded in concrete (steel safety handle) 50mm Ventilation Pipe. 3nr in each compartment 100mm Dia. 2m Long pvc Pipe DN 100mm Pipeline from the Settler Tank A142 BRC Mesh T&B Inlet Trench TWL TWL TWL TWL 300mm Thick Compacted Hardcore 200mm Masonry tank wall reinforced with1R8 bars at every alternative course. Approved waterproofing render Reinforced Fibre Cover Type 3 NOTES Reinforced Fibre Cover Type 2 Siphon to Detail TWL 3.3m³ Storage 2200 200200 100mm Dia Overflow Pipe DN 100mm Pipeline to Vertical Flow Constructed Wetland 1000 200 200 A142 BRC Mesh T&B 250mm Thick Compacted Hardcore 6120 50mm Class 1520 (1:3:6) Concrete blinding SECTION A-A SCALE 1:50 ANAEROBIC BAFFLED REACTOR | | | --- | | | | | |
TWL | | | --- | --- | | | | 200 200 200 200 200 1000 900 900 300 BEAM B2 COMPARTMENT 1A COMPARTMENT COMPARTMENT 2A COMPARTMENT 2B COMPARTMENT 3A COMPARTMENT 3B BEAM B2 COMPARTMENT 4A COMPARTMENT 5A COMPARTMENT 5B 300 400 COMPARTMENT 6A COMPARTMENT 6B BEAM B2 BEAM B2 600 600 1000 200 200 200 200

FAQs

What are the key screen components shown for coarse and fine screening?

The drawings include hinge and sectional details for a coarse and fine screen, with GMS plates and fish tail lugs fixed to RC walls. They also specify fine screens made from flat bars at given center-to-center spacings and note a bottom-plate similar construction.

What elements of the receiving and settling process are detailed in the tank sections?

The sheets show a receiving bay with a balancing tank and provide settler tank details, including base slab and walls plan views. They include piping connections such as inlet/trench and pipeline routes between the settler tank and downstream units.

Which siphon and drainage features are specified for the chambers?

The SIPHON CHAMBER and SIPHON DRAINING CHAMBER are dimensioned with DN 75mm siphon and specified pipework, including a 100mm diameter pvc pipe and associated bends and connections. Ventilation details include a vent cowl with pvc mosquito wire gauze and related cover specifications.

Oct 29, 2026

Upload by Jordan Avery