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Register a new userFlux and Resistances Analysis in ultrafiltration used as pretreatment of sea water desalination
تحليل الدفق و المقاومات في عمليات الترشيح الفائق المستخدم في المعالجة التمهيدية لتحلية مياه البحر
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تم في هذا البحث دراسة تأثير العوامل المختلفة على الدفق و الاتساخ في عملية الترشيح الفائق الستاتيكي ذي الصفيحة المستوية (Dead–End Flat Sheet Ultrafiltration) لمحاليل مختلفة الملوحة ملوثة بالحمض الدبالي كمادة اتساخ.
In this research the effects of various parameters on flux and fouling in Dead -End Flat Sheet Ultrafiltration (DEFS) were studied using saline solutions contaminated by humic acid as fouling material.
References used
Fritzmann C, Löwenberg J, Wintgens T, Melin T. State-of-the-art of reverse osmosis desalination. Desalination 2007;216:1- 76
Greenlee LF, Lawler DF, Freeman BD, Marrot B, Moulin P. Reverse osmosis desalination: water sources, technology, and today's challenges. Water Res. 2009;43:2317-2348
Reverberi F, Gorenflo A. Three year operational experience of a spiralwound SWRO system with a high fouling potential feed water. Desalination 2007;203:100-106
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Fresh water shortage problem is the most important difficulty that counters agricultural and industrial
improvement strategies on both Arabic and international levels, where Arabian region extends along vast
arid and semi- arid areas, and mostly la
cks for fresh water resources. Therefore, desalination choice has
become an inevitable option to compesate deficiency of water, especially with the long Arabian costal line,
where desalinated seawater is considered renewable fresh water resource.
However, desalination mechanism requires water pretreatment procedures in order to reduce total
hardness and pH values, to prevent salts precipitations which hinder thermal and membrane techniques.
The research study scenarios water hammer problem that may cause the destruction
of the irrigation pipes, pumping stations and equipmen and part of the irrigation project in
terms Ain Beida and its environs in the north-eastern city of Latakia, whe
re the project
seeks to quench 5,000 hectares of land with water pumped from Lake Dam November 16
occurrence . It consists of four pumping stations in addition to major irrigation systems and
irrigation systems subsidiary. Used in these stations pipes made of steel (Steel) , The
reservoir project's main reservoir is two.
Bently and Water CAD V8 XM Edition we have in this research with the help of the
CD-networking program
Modeling of these stations to save time and effort in the study, are HAMMER V8
XM Edition
Determine Adhamiya pressures and velocities in the case of runoff stable, identifying
pressures Adhamiya in the case of the flow is stable through the development scenario of a
water hammer caused by the sudden closure of the valve irreversibility thus leading larger
than the carrying capacity of pipes and fittings have a high pressure values, and put another
scenario shows the effect of non-use non-return valve in the water hammer occurs, and its
role as a good protection of them Thus leading to high pressures and dangerous far greater
than the carrying capacity of the pipe fittings values, and also used the compressed air
reservoir in the third scenario means other protection from water hammer, and we found
through Adhamiya pressures resulting values that the compressed air tank means better
protection; it has to prevent any increase in pressure values Adhamiya when water hammer
occurs, and kept her on the values that were in the case of steady flow.
استخدام مياه الصرف الصحي المعالجة في نمو وانتاج البندورة المحمية
التحاليل الكيميائية والقياسات الفيزيائية.
التحليل الاحصائي
العناصر الغذائية
تصميم الترجمة.
مياه الصرف الصحي المعالجة.
This paper seeks to present a conception of the sea and its effective role in the
contemporary Syrian short story through a study of the works of a number of short story
tellers who travelled at sea in search for mysteries of life to gain an unders
tanding of the
universe and explore the suffering of coastal residents. This conception is manifested in the
short story writings by Abul Kader Rabe'a, Muhsen Yousef, Muhammad Smeer Jua'ra and
others.
The sea in the short story represents human concerns and the interdependent
relationship between man and the sea. Each writer in his own way moves as a result of
suffering from the private concerns to the national concerns. This is the center of Muhsen
Yousef's stories through a heroic resistance and bitter struggles with the powers of evil
aliened with internal powers that have attempted to control the nation's coasts. The Arab
resistant triumphs over the powers of evil in a heroic epic and forces the powers to
withdraw in defeat.
This study aimed to manifactor mozzarella cheese using bovine
milk retentate and concentrated with Ultrafiltration using (Frames &
plates) system, and compared it with mozzarella cheese made from
original milk in terms of chemical composition, cheese yield,
sensory and rheological characteristics.
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