Up granding of al Mussaib technical institute water treatment plant

مقدم أطروحة جامعية

al-Rifai, Jawad Kazim Abbud

الجامعة

الجامعة التكنولوجية

الكلية

-

القسم الأكاديمي

قسم هندسة البناء و الإنشاءات

دولة الجامعة

العراق

الدرجة العلمية

دكتوراه

تاريخ الدرجة العلمية

2006

الملخص الإنجليزي

In this research an experimental work was carried out into seven studies for analyzing physical, chemical, and biological data of raw water source at Al-Mussiab-Mushroa canal project (M.M.canal) on the ( 11th km ) from the upstream at north of Mussiab city, also settled and treated water characteristics before and after inserting the improved modification.

First and second studies deal with the existing plant condition (just before the application of the required modifications) that can be used to upgrade the efficiency of Al- Mussiab Technical Institute Water treatment plant [WTP (MTI)] to produce a good quality of potable water.

Results indicate insufficient plant efficiency in treating the raw water and the technical modifications were required for the plant units to increase their efficiency more specific (quantity and quality).

First study dealt with raw water on the stream line of the Canal upstream (15Km) at the north of Mussiab city, divided into (7) stations for each of 2.5km apart, a period of study from 1 / 3 / 2005 to 31 / 8 / 2005.

Second study dealt with during the period from 1 / 5 / 2004 to 28 / 2 / 2005) settled and treated water characteristics.

The results show the validity or the suitability of the Canal raw water for use in water treatment plant WTPS.

The tested parameters show that they were within the Iraqi standards guide line for raw water limitations except the nitrite concentration (N02~) which reached up to 27 mg / L , and the simple curtain at the intake to this plant plays an important role in preventing heavy sand sediments entering the plant units, The total dissolved solids (TDS) concentration shows high level (562-698 mg / L ) and the analysis of the sediments indicates 71.9 % sandy sediments and (28.1 %) silt and clay.

Second study performed on the existing plant performance (as it is) showed that the settling basin perform in an insufficient efficiency due to the lack of the existing sludge removal, and the filter also inefficient to remove turbidity, coliform bacteria and fecal coliform bacteria.

The plant units performance criteria was calculated.

Several possible alternative processes were studied to improve the plant performance by inserting some required arrangements such as : 1- Preparing a table for improving the efficiencies involved the followings : (a) modifying the alum flash mixer, (b) using the second coagulant preparation basin and arranging it with suitable program of adding the alum or other coagulants, (c) modifying the flocculate mixer and alum dozer calibration.

2- Studying the ability of improving the existing filter to raise the filtration rate through high discharge rate.

3- Installing a new lamella (inclined) plate settler in a special frame inserted in the settling basin with a mechanical controlling system.

Also adding submersible pump at the bottom of the clarifier to solve the problem of sepueiiy 4- Imposing, to solve the problem in, a weekly program tor pre cniunnaiiuii process.

5- The softening process results showed that it was important to remove the high concentration of the hardness elements.

The other five studies were done to reach the best evaluation of the plant performance solving the existing problems by the evaluation to required treatment and an improvement were done to raise the plant quantitative and qualitative efficiencies , According to the previous results for raw, settled, treated water, five studies were considered to raise the plant qualitative and quantitative efficiencies.

The third study indicated that the optimum angle is nearly 55° as an inclined plate angle under the designed existing discharge (50m3 / hr).

While the fourth study for upgrading the plant performance found the optimum inclined late angle of 40° under the required discharge (75m3 / hr).

The fifth study indicated that, the percentage of turbidity removal increased more than intentional process after using the polymer as well as alum in flocculation and titling processes.

The sixth study showed that Volatile suspended solid (VSS) as removed strongly in settling process, the pre chlorination process may take art in coagulation process.

Finally the seventh study indicated effective removal percent of Ca+", Mg + H after using the softener unit.

Dimensionless statistical analysis made by using statistical methods was used to explain the relationship between different variables as a descriptive, and correlation matrices to examine the results of the last five studies versus conventional (existing) performance (second study).

Also the calculated correlation coefficient between each two variables (correlation matrix; paired samples correlation and T-test for that different processes were done.

التخصصات الرئيسية

الهندسة المدنية

الموضوعات

• التقييم
• الصرف الصحي
• مياه الصرف الصحي
• المياه
• العراق
• محطات معالجة المياه

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-306183