Assessment of the efficiency of Khartoum State wastewater treatment plant : case study (Soba Station)‎

Dissertant

Ahmad, Muhammad Kamal Muhammad

Thesis advisor

Abd al-Majid, Haju Muhammad

University

Omdurman Islamic University

Faculty

Unesco Chair in Water Resources

University Country

Sudan

Degree

Master

Degree Date

2006

English Abstract

Due to the excessive immigration of people from rural areas to the capital as result of civil war and desertification seeking work to earn descent living in the capital Khartoum, this capacity is no longer sufficient to meet the increase in waste quantity.

This led to a decrease in the efficiency of the treatment plant and consequently to the discharge of insufficiently treated wastewater with low quality.

The objective of this study is to evaluate the efficiency of Soba waste water treatment plant, and to evaluate some of the physic-chemical and bacteriological characteristics of sewage effluent that limit it's random disposal and reuse for irrigation and to compare them with the local and international acceptable quality standard.

The efficiency of the current sewage treatment plant in Khartoum State (soba plant) was studied during five consecutive years (2000-2005).

by considering some of the physico chemical and bacteriological characteristics of effluent sewage that determine it's suitability for disposal or irrigation.

1.

The effluent under study is unacceptable for irrigation reuse with respect to it's parameters quality.

The mean effluent BOD varied from 42.1 mg / l (range 29.2-60.7 mg / l) in 2002 to 65.9 mg / l (range 52.5-95.5 mg / l) in 2004, with the mean efficiency of BOD removal due of treatment varying from 80.5 % in 2004 to 84.9 in 2002 .

2.

The mean effluent COD varied from 124.4 mg / l (range 97.7-17.0 mg / l) in 2000 to 184.7 mg / l (range 139.7-258.9 mg / l) in 2004 and the mean efficiency of COD removal varied from 66.2 % in 2004 to 74.7 % in 2000.

3.

The mean DO level of the effluent varied from 3.7 mg/l for 2004 to 6.2 mg / l in 2000, which generally indicates a poor to fair class.

4.

The total suspended solids (T.S.S) concentration of the effluent varied on the average from 64.6 mg/l (range 40.3-85.0 mg / l) in 2000 to 87.4 mg / l (range 65.5-112.0 mg / l) in 2005 with a mean removal effluent varying between 63.5 % in 2003 and 93.5 % in 2001.

5.

The EC and TDS respectively varied ion the average from 2 mmhos / cm (1280 mg / l) in 2005 to 2.5 mmhos / cm (1621 mg / l) in 2003, the values are with in the acceptable quality limits and are not expected to pose severe problems .

6.

The pH of the effluent under study varied from 7.5 in 2005 to 8.3 in 2000, the values present no serious problems since it generally falls within the local and international acceptable standards .

7.

High total coliform count was evident thus indicating a low efficiency of microbial removal which renders the effluent unacceptable for irrigation reuse, because of public health hazards aspects it may by recommended that according to this study the effluent wastewater from Soba treatment plant does not meet both the local and international standards .

Main Subjects

Civil Engineering

Topics

• Case studies
• Sanitation
• Waste water
• Sudan
• Khartoum
• Performance

No. of Pages

106

Table of Contents

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-362813