1. Water Types of water Sewer systems TCU/VIA 6th semester workshop

2. Types of water Sewer systems Ground water (ground and surface)
Rain water (storm water)
3. Sewer (sanitary water)
TCU/VIA 6th semester workshop

3. Sewer systems TCU/VIA 6th semester workshop
The different types of water is handled in separate piping systems

4. Sewer systems
TCU/VIA 6th semester workshop

5. Sewer systems
TCU/VIA 6th semester workshop

6. 1. Ground water Sewer systems
The soil contains water. This water may be at a level where it can endanger the building (foundation).
So normally a drain is laid around buildings to drain the water away.
This is denounced perimeter drain.
TCU/VIA 6th semester workshop
Types of water

7. Sewer systems TCU/VIA 6th semester workshop Plan of perimeter drainage
Types of water

8. Sewer systems TCU/VIA 6th semester workshop
Pipe of PVC with holes and filter
Drain pipes min. diameter 70mm, frost free depth min mm
Min slope 3-5o/oo
Types of water

9. Sewer systems TCU/VIA 6th semester workshop
Drain pipes around a building
Types of water

10. Sewer systems Wavin_600mm_well.pdf TCU/VIA 6th semester workshop
Types of water

11. Sewer systems TCU/VIA 6th semester workshop Perimeter drainage
Types of water

12. 1. Rain water Sewer systems
Rain water must be lead away from the roof and stair wells of the building.
Down sprouts leads the rain water into rain water pipes, which takes the water to receptors for clean water. This may be the sea or lakes or into constructions which keeps the water on the ground where it can sink into the ground.
Frost free depth is min 750 mm, 300 mm if dry pipes, slope min. so that the pipes can be self cleaning. ( min. 20 o/oo)
TCU/VIA 6th semester workshop
Types of water

13. Sewer systems
Rain water must be kept on the plot as much as possible not to exceed the max capacity of the storm pipes.
A fascine can be established. This is made from larger stones, gravel or more modern from plastic.
TCU/VIA 6th semester workshop
Wavin fascine
Types of water

14. 1. Sewer water Sewer systems
Black water coming from house hold, toilets and others contaminating sources must be taken to treatment plants.
In the treatment plants solids are removed and oxygen is added and further chemical or biological treatment may be imposed.
TCU/VIA 6th semester workshop
Types of water

15. Sewer systems TCU/VIA 6th semester workshop Wastewater treatment plant
Types of water

16. Sewer systems TCU/VIA 6th semester workshop Wastewater treatment plant
Types of water

17. Sewer systems TCU/VIA 6th semester workshop Wastewater treatment plant
Types of water

18. Sewer systems Sewer works TCU/VIA 6th semester workshop
Grey pipes in the building
Sewer works

19. Sewer systems Sewer works TCU/VIA 6th semester workshop
Orange pipes in the ground
Sewer works

20. Sewer systems Sewer works TCU/VIA 6th semester workshop Well
Sewer works

21. Sewer systems Sewer works TCU/VIA 6th semester workshop
Cross section of waste water trench
Sewer works

22. Sewer systems TCU/VIA 6th semester workshop
Example of dimensions of sewer pipes.
Sewewr works