An-Najah National University

Faculty of EngineeringCivil Engineering Department

Design of Wastewater Collection System

of Tubas City

Prepared by: Hiba Hassoun & Zeinab Abu-Mohsen

Supervisor: Dr. Mohammad N. Almasri

Introduction

There is many advantages from having a wastewater Collection system …….. Conservation of environment, reduce pollution of groundwater

Tubas city dose not have infrastructure for the wastewater ………….. They get rid the wastewater by using cesspits

The solution is construction of wastewater collection network accompanied with wastewater treatment plant

Objectives Understand the situation of the collection and disposal of wastewater in Tubas City.

Design a wastewater collection system for a portion of Tubas City using sewerCAD software.

Study Area Location: Tubas City located northern part of the West Bank about 20 km northeast of Nablus ,24 km southeast of Jenin

Population: the town of Tubas inhabited by about 18000 people in 2007 .

Topography & Climate:The height varies in tubas and change from 670m to 290m , its about 555m above mean sea level.

The climate of Tubas is moderate in summer and winter, the averge annual rainfall is about 414mm

Methodology:Collect the data related to the study area…….contour map, population ,daily consumption of water , AutoCAD data.

Collect information through questionnaire icluding question about

Calculate the load of each manholes.

Design wastewater collection system using SewarCADDrawing manholes & connect it with sewersInput data• constrain information

Manhole information

Sewer information

Outlet information

Run the network and get the results

Velocity

0 50 100 150 200 25000.51

1.52

2.53

3.54

Cover

0 50 100 150 200 2500

0.5

1

1.5

2

2.5

3

3.5

Conclusions 211 manholes 211 pipes2 outletsTotal flow for manholes varies between 3553(l/d) to 926680(l/d)All pipes have the same diameter 200mm (8 inch )Velocity varies between (.5-3.74)m/s

Thank you