1. Design of WWTP & Main Sewer Lines For Tubas Region
Prepared by:
Abed-Arahman Daraghmeh
“Mohammad Anas” Bureeni
Mohammad Sa’ed Mohammad Daraghmeh
Supervisor:
Dr. Abdel Fattah Hasan
Saturday
Project Design
Civil Engineering

2. Overview: This project aimed to:
Design of Wastewater Treatment Plant, which will treat “domestic wastewater”.
Design of Main Sewer Trunk Lines.
The study area include Tubas and surrounded villages:
Aqqaba , Tammun , Tyaseir.

3. Purposes Of WWTP: 1. Protect the environment from the pollution.
2. Save water resources.
3. Use the treated waste water in agricultural application and others.

4. Why we choose Tubas: There are no sewage collection system, or WWTP.
Tubas Governorate is an agricultural area, so the treated waste water can be used.
Due to lack of water resources
And due to political condition.

5. Location and climate of Tubas:
480mm
18-24 C RH
56%

6. Total Population in 2035 =137,000 persons
Design equation: P=P0(1+ r)n
Total Population in 2035 =137,000 persons

7. Location Of WWTP: We have three scenarios for Plant location :
Scenario NO.
Location of WWTP
Areas connect by gravity to WWTP
Areas connected by pump to WWTP
Served area by treated W.W 1
Wadi AlFaria
Tubas, Tammun, Aqqapa
Tayasir
7,000 dunums 2
Tayasir zone
60%of Tubas, Aqqapa, Tayasir
40%of Tubas, Tammun
11,000 dunums 3
Tubas -Tammun
Junction
13,000 dunums

8. The First Scenario

9. The First Scenario Aqqaba Tyaseir Tubas Map key : Tammun Served area
7000 dunums
By Gravity
By Pump
Tammun

10. The Second Scenario Aqqaba Tyaseir Tubas Map key : Tammun Served area
11000 dunums
Tubas
Map key :
By Gravity
By Pump
Tammun

11. The Third Scenario Aqqaba Tyaseir Tubas Map key : Tammun
Served area
13000 dunums
Map key :
By Gravity
By Pump
Tammun
The served area

12. Conclusion: The scenario which we choose is scenario (3) because of:
1. Large area to be served of treated waste water.
2. The location is away from the water resources.
3.One pump is needing, to complete the collection system

13. Design of Sewer lines Project Design Civil Engineering
Sunday
Project Design
Civil Engineering

14. Major Topics
1- Sewer lines and manholes. 2- Design characteristics and design of sewage system. 3- Sewer cost.

15. Sewer lines and manholes
1- Used 330 manholes as part of the collection system. 2- The trunk main line sizes vary from (8 to 15) inch. 3- The collection piping lines are located under main roads and public right-of-way corridors to minimize the use of private easements.

16. a) Durable, hard to damage, and long lasting.
Polyvinyl chloride
a) Durable, hard to damage, and long lasting.
b) PVC pipe doesn’t rust ,or wear over time.
c) Its most commonly used in sewer lines, and used with diameter less than 500mm.

17. 4- Used minimum cover 0.9m for diameter larger than 200mm, and the maximum cover should be less than 3.5 m. 5- sewer manholes and trunk lines are installed in accordance with all applicable PWA (Palestinian Water Authority) guidelines.

18. Design characteristics and design of sewage system.
1- Conveyance methods of sewage systems. A) By Gravity. B) By pump. 2- Design methods of sewage system. A) By the manual method . B) By software method.

19. The main characteristics for the design : 1- Velocity ( 0. 6-3. 5)m/s
The main characteristics for the design : 1- Velocity ( )m/s. 2- Slope ( )m/m. 3- Increment of population are calculated by (number of houses expected to be drained to the manholes *average number of persons in house). 4- manning coefficient =

20. Excel sheet results for Tammun

21. Results of sewer-Cad for Tubas pipe lines

22. pump results for Tayasir
Shaft Power (KW)
Flow rate (m3 / h)
6.3 21
9.5 32

23. Sewer Cost
1- Transportation 2- Installation of pipes and manholes, including backfilling ,asphalt and the necessary tests.

24. Total cost (NIS)
Total length (m)
Diameter (in)
5,531,200
13,828 8
486,680
1,058 10
306,230
565 12
2,206,128
3,116 15
8,530,238
18,567
Total

25. TECHNOLOGY SELECTION Project Design Civil Engineering
Sunday
Project Design
Civil Engineering

26. TECHNOLOGY SELECTION
Based on the above … There is no doubt that the Tubas municipality need treatment plant of wastewater for use in agriculture and others.
However, should be selected appropriate technology for processing, so that the technology which be selected, should be available, cheap and somewhat easy to use.

27. TECHNOLOGY SELECTION

28. TECHNOLOGY SELECTION
There are a lot of technology that could be comparable:
1- WSPs:
```
Advantages:
high efficiency above 90% (√).
simple to construct (√).
Disadvantages:
need large area (X).
Odor release (X).
RESULT: Because our area is limited, This technology is ignored
Anaerobic pond BOD and SS removal
Facultative pond BOD removal
Maturation pond reduce No. of pathogens

29. WETLAND

31. TECHNOLOGY SELECTION 2- WETLANDS (two types): A-Natural wetlands.
B-constructed wetlands.
Advantages:
Low operation cost (√).
Excellent in small communities (where inexpensive land is available) (√)
Disadvantages:
Slow rate of operation (X).
Need to large amount of area (X).
because of limited area, this technology is ignored

32. TECHNOLOGY SELECTION 3- One stage activated sludge:
container contain dissolved bacteria in water, work for BOD removal.
This technology is highly efficient, but it needs more time than the time allowed for this technology(4< 14.6 > 8)hrs.
therefore will be excluded from accounts.

33. TECHNOLOGY SELECTION 4 - One Stage Trickling Filter
Low Efficiency. So ,this technology its not appropriate to use.

34. TRICKLING FILTEER MEDIA
Stone Media with Slimes (Bacterial cells)

35. TECHNOLOGY SELECTION 5-Two stage trickling filter:
two containers in series contain a bacteria lives at the surface of rock media (BOD removal).
Cannot use this type, especially that there are
problems in the accounts of BOD loading & hydraulic loading.
RESULT:
This technology its not appropriate to use.

36. TECHNOLOGY SELECTION 6- One & two stage Biological Towers:
This type of technology can be used, but there is difficulty in finding the value of coefficient KT: reaction rate coefficient at T temperature
as it requires empirical formula to find it.
RESULT: This technology will be ignored.

37. TECHNOLOGY SELECTION RESULT: this technology is ignored.
7- UASB With Activated Sludge :
This type of technology can be used, but is not preferred for several reasons:
 1- Emits Green Houses Gases such as CH4 and CO2. 2- Difficult operation and a high operating cost. 3- Needs to people with high expertise, and in our country it is difficult to find people with these specifications because this technology is modern. 4-   Technical anaerobic, toxic at low temperatures.
RESULT: this technology is ignored.

38. TECHNOLOGY SELECTION 8-Trickling filter with activated sludge (cont’d):
After that time, we noted that in the activated sludge is not commensurate with the standards, it was necessary to develop a trickling filter unit prior to the activated sludge so as to reduce the time required. Time becomes equal to = (4 < 6.0 < 8) hrs.. OK
RESULT:
this option is appropriate, and there are no problems to construct it.

39. TECHNOLOGY SELECTION CONCLUSION:
After viewing the above, We conclude that the best technology is trickling filter with activated sludge.

40. THE NEXT STEP IS DESIGN

41. WWTP Design
Sunday
Project Design
Civil Engineering

42. Phases :- Three phases have been used
1-The first phase is to year 2035
2- The second phases is to year 2051
3-The third phases is to year 2060
Saturday
Project Design
Civil Engineering

43. Flow rate characteristics
w.w.production = 100 l /c.d
SS = 80 g/c.d
BOD = 60 g/c.d
At 2ndPhase flow rate = m³/day
At the 1st Phase flowrate =13400m³/day
At 3rd Phase flow rate = m³/day
At year 2011 flow rate = 4700 m³/day
Saturday
Project Design
Civil Engineering

44. wwtp Flowchart Project Design Civil Engineering ` ` ` ` ` ` `
Saturday
Project Design
Civil Engineering

45. Rack screen Project Design Civil Engineering Slop Depth Length Width
No.
60°
1.5 m
15 m
0.75 m
1 + 1 standby
Saturday
Project Design
Civil Engineering

46. Aerated grit chamber Project Design Civil Engineering Depth Length
Width
No.
3.5 m
5.5 m
3.6 m
1 + 1 standby
Saturday
Project Design
Civil Engineering

47. Rectangular primary sedimentation tank
Weir length
slop
Depth
Length
Width
No.
49.2 m
1.35%
3.5 m
40 m
10m 2
Saturday
Project Design
Civil Engineering

48. Trickling filter Project Design Civil Engineering Efficiency Depth
Diameter
No.
75%
2.3 m
25 m 4
Saturday
Project Design
Civil Engineering

49. Rectangular intermediate sedimentation tank
Weir length
slop
Depth
Length
Width
No.
55.2 m
1.35%
3 m
44 m
11m 2
Saturday
Project Design
Civil Engineering

50. Completely mix activated sludge
Efficiency
Depth
Diameter
No.
80%
4.5 m
28 m 2
Saturday
Project Design
Civil Engineering

51. Rectangular secondary sedimentation tank
Weir length
slop
Depth
Length
Width
No.
68.8 m
1.35%
3 m
52 m
13m 2
Saturday
Project Design
Civil Engineering

52. Pump station Project Design Civil Engineering Tank dimensions depth
length
width
4 m
12 m
Pump characteristics
Efficiency
Shaft power
Total head
No.
81.2 %
123 KW
66.6 m
2 + 1 standby
Saturday
Project Design
Civil Engineering

53. WWTP Layout

54. Final Result
Albeqa’a Area
Area = Dunum
Thank You