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العنوان
Performance evaluation of aerated lagoons /
الناشر
Naeima Abdel Rahman Agib ,
المؤلف
Agib , Naeima Abdel Rahman
هيئة الاعداد
باحث / راتب زخورصائغ
مشرف / مصطفى محمد سليمان
مشرف / جمال صادق عبيد
مشرف / ناجى على على
مناقش / محمد النيازى حماد
الموضوع
Aerated logoons. sewage treatment.
تاريخ النشر
1996 .
عدد الصفحات
96p.;
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة المدنية والإنشائية
تاريخ الإجازة
1/1/1997
مكان الإجازة
جامعة عين شمس - كلية الهندسة - مدنى
الفهرس
Only 14 pages are availabe for public view

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Abstract

roundwater is an important source of water supply, its uses in
irrigation, industries, municipalities and rural districts continue to increase.
So groundwater is necessary for the continuous demand for more and
more water.
The objective of this study is to establish the water balance and the
groundwater recharge of the general area and the pilot area in the Figeh
site, which is located to the northwestern of Damascus City (Syria), in
view of defining the present situation and the interrelationships of the
groundwater system. The result of this study would indicate the possibility
of operating withdrawals of water from the aquifer system and constitute
a first step toward a more comprehensive scheme of conjunctive use of
surface and groundwater resources and more efficient drainage system for
the area. Items of the water balance equations and pumping tests, quality
of groundwater and some environmental constraints are studied and
analysed using the data collected from both, the field and pervious
relevant studies.
Pumping test results indicate that, with proper control and
managed modifications at Figeh Spring, flow augmentation in the amount
of 4 m3/sec is available to support the needs of Damascus during the lowflow
season. The reduction in storage will be replaced by the rains during
the early part of the recharge. The study has shown that no change in
storage is taking place neither in the study area nor in the pilot area, since
no built up in the groundwater piezometric heads are encountered. The
study has shown that there is a maximum deficit of producing water in the
summer season and there is a surplus in the winter season. The maximum
deficit after the month ”September” was found to be covered by using the
side springs of Ain Figeh.
It is recommended to apply groundwater modeling techniques in
the pilot area simulating the different alternatives of vertical and/or
horizontal drainage schemes and water supply facilities. Optimization
techniques may be of great importance on selecting the best management
policy based on conjunctive use concepts. Maximum security must be
imposed to the recharge area ofFigeh Spring.