الاثنين، 7 يوليو 2014
الخميس، 19 يونيو 2014
مصانع مياه معدنيه وحفر ابار لعمق 1200 متر
شركه سيلا ووتر لاستخراج ومعالجه المياه حفر ابار المياه لاعماق 1200 متر
توريد وحدات التحليه ل 45000 جزء ف المليون سعات مختلفه
انشاء مصانع المياه المعدنيه
توريد محطات الصرف الصناعى واعاده تدوير المياه
اسشاريين فى جميع التخصصات الللازمه لانتاج ومعالجه واستخراج المياه
شركه سيلا ووتر
seelawater@yahoo.com
01156105533
01228243917
الثلاثاء، 20 مايو 2014
شركه سيلا ووتر لاستخراج ومعالجه المياه (دق خوازيق_حفر ابار_محطات تحليه _محطات صرف صناعى )
شركه سيلا ووتر لاستخراج ومعالجه المياه
دق خوازيق_حفر أبارمياه جوفيه_محطات تحليه ومعالجه المياه -محطات صرف صحى وصناعى
01156105533
01228243917
seelawater@yahoo.com
السبت، 19 أبريل 2014
فيديو حفر ابار بماكينه البركشن شركه سيلا ووتر
https://www.youtube.com/watch?v=GI41zVURmwc&feature=youtu.be
آبار التغذية أو آبار الشحن Recharge Wells
3. آبار التغذية أو آبار الشحن Recharge Wells
تستخدم آبار التغذية ( الشحن ) فى توصيل المياه من سطح الأرض إلى خزانات المياه الجوفية وتكون حركة المياه بها عكس اتجاه حركة المياه فى الآبار الإنتاجية ولكنها قد تكون مماثلة من الناحية الإنشائية ومختلفة عنها تبعاً للغرض من إنشائها. ومن الممكن استخدام البئر الإنتاجى كبئر شحن.
4. آبار التجمع الشعاعى Redial Collector Wells
وهى آبار إنتاجية تسمح بضخ كميات كبيرة من المياه عن طريق بئر واحد عندما يتعذر الحصول عليها اقتصادياً من بئر واحد عميق أو حتى من مجموعة آبار.
ويتكون بئر التجمع الشعاعى من بيارة ذات قطر كبير نسبياً ( 2-3 متر ) تصل إلى الطبقة الحاملة للمياه وتخترقها بعمق كاف وعندها يتم دفع مواسير ذات ثقوب بطول مناسب (60-90 متر) خلال الطبقة الحاملة للمياه أفقياً فى اتجاه قطرى بحيث تسمح بتجميع المياه فى الاتجاه الشعاعى إلى داخل البيارة حيث يتم ضخها إلى سطح الأرض، ويراعى أن يكون منسوب الأنابيب ( المواسير المثقبة ) تحت مستوى سطح المياه الديناميكى ( أثناء الضخ ).
السبت، 5 أبريل 2014
Osmosis is the movement of a solvent across a semipermeable membrane toward a higher concentration of solute. In biological systems, the solvent is typically water, but osmosis can occur in other liquids, supercritical liquids, and even gases.[9][10]
When a cell is submerged in water, the water molecules pass through the cell membrane from an area of low solute concentration to high solute concentration. For example, if the cell is submerged in saltwater, water molecules move out of the cell. If a cell is submerged in freshwater, water molecules move into the cell.
Water passing through a semi-permeable membrane
When the membrane has a volume of pure water on both sides, water molecules pass in and out in each direction at exactly the same rate. There is no net flow of water through the membrane.
The mechanism responsible for driving osmosis has commonly been represented in biology and chemistry texts as either the dilution of water by solute (resulting in lower concentration of water on the higher solute concentration side of the membrane and therefore a diffusion of water along a concentration gradient) or by a solute's attraction to water (resulting in less free water on the higher solute concentration side of the membrane and therefore net movement of water toward the solute). Both of these notions have been conclusively refuted.
The diffusion model of osmosis is rendered untenable by the fact that osmosis can drive water across a membrane toward a higher concentration of water.[11] The "bound water" model is refuted by the fact that osmosis is independent of the size of the solute molecules--a colligative property[12]--or how hydrophilic they are.
Effect of different solutions on blood cells
Micrographs of osmotic pressure on red blood cells(RBC)
Plant cell under different environments
Osmosis, unlike diffusion, requires a force to work. This force is supplied by the solute's interaction with the membrane. Solute particles move randomly due to Brownian motion. If they move towards pores in the membrane, they are repelled, and in being repelled, acquire momentum directed away from the membrane. The momentum is rapidly transferred to surrounding water molecules, driving them away from the membrane as well.
Osmotic pressure is the main cause of support in many plants. The osmotic entry of water raises the turgor pressure exerted against the cell wall, until it equals the osmotic pressure, creating a steady state.
When a plant cell is placed in a solution that is hypertonic relative to the cytoplasm, water moves out of the cell and the cell shrinks. In doing so, the cell becomes flaccid. In extreme cases, the cell cases, the cell becomes plasmolyzed – the cell membrane disengages with the cell wall due to lack of water pressure on it.
When a plant cell is placed in a solution that is hypotonic relative to the cytoplasm, water move into the cell and the cell swells to become turgid.
Osmosis is responsible for the ability of plant roots to draw water from the soil. Plants concentrate solutes in their root cells by active transport, and water enters the roots by osmosis. Osmosis is also responsible for controlling the movement of guard cells.
Osmosis can be demonstrated when potato slices are added to a high salt solution. The water from inside the potato moves out to the solution, causing the potato to shrink and to lose its 'turgor pressure'. The more concentrated the salt solution, the bigger the difference in size and weight of the potato slice.
In unusual environments, osmosis can be very harmful to organisms. For example, freshwater and saltwater aquarium fish placed in water of a different salinity than that to which they are adapted to will die quickly, and in the case of saltwater fish, dramatically. Another example of a harmful osmotic effect is the use of table salt to kill leeches and slugs.
Suppose an animal or a plant cell is placed in a solution of sugar or salt in water.
1.If the medium is hypotonic relative to the cell cytoplasm — the cell will gain water through osmosis.
2.If the medium is isotonic — there will be no net movement of water across the cell membrane.
3.If the medium is hypertonic relative to the cell cytoplasm — the cell will lose water by osmosis.
Essentially, this means that if a cell is put in a solution which has a solute concentration higher than its own, it will shrivel, and if it is put in a solution with a lower solute concentration than its own, the cell will swell and may even burst.
Chemical gardens demonstrate the effect of osmosis in inorganic chemistry
When a cell is submerged in water, the water molecules pass through the cell membrane from an area of low solute concentration to high solute concentration. For example, if the cell is submerged in saltwater, water molecules move out of the cell. If a cell is submerged in freshwater, water molecules move into the cell.
Water passing through a semi-permeable membrane
When the membrane has a volume of pure water on both sides, water molecules pass in and out in each direction at exactly the same rate. There is no net flow of water through the membrane.
The mechanism responsible for driving osmosis has commonly been represented in biology and chemistry texts as either the dilution of water by solute (resulting in lower concentration of water on the higher solute concentration side of the membrane and therefore a diffusion of water along a concentration gradient) or by a solute's attraction to water (resulting in less free water on the higher solute concentration side of the membrane and therefore net movement of water toward the solute). Both of these notions have been conclusively refuted.
The diffusion model of osmosis is rendered untenable by the fact that osmosis can drive water across a membrane toward a higher concentration of water.[11] The "bound water" model is refuted by the fact that osmosis is independent of the size of the solute molecules--a colligative property[12]--or how hydrophilic they are.
Effect of different solutions on blood cells
Micrographs of osmotic pressure on red blood cells(RBC)
Plant cell under different environments
Osmosis, unlike diffusion, requires a force to work. This force is supplied by the solute's interaction with the membrane. Solute particles move randomly due to Brownian motion. If they move towards pores in the membrane, they are repelled, and in being repelled, acquire momentum directed away from the membrane. The momentum is rapidly transferred to surrounding water molecules, driving them away from the membrane as well.
Osmotic pressure is the main cause of support in many plants. The osmotic entry of water raises the turgor pressure exerted against the cell wall, until it equals the osmotic pressure, creating a steady state.
When a plant cell is placed in a solution that is hypertonic relative to the cytoplasm, water moves out of the cell and the cell shrinks. In doing so, the cell becomes flaccid. In extreme cases, the cell cases, the cell becomes plasmolyzed – the cell membrane disengages with the cell wall due to lack of water pressure on it.
When a plant cell is placed in a solution that is hypotonic relative to the cytoplasm, water move into the cell and the cell swells to become turgid.
Osmosis is responsible for the ability of plant roots to draw water from the soil. Plants concentrate solutes in their root cells by active transport, and water enters the roots by osmosis. Osmosis is also responsible for controlling the movement of guard cells.
Osmosis can be demonstrated when potato slices are added to a high salt solution. The water from inside the potato moves out to the solution, causing the potato to shrink and to lose its 'turgor pressure'. The more concentrated the salt solution, the bigger the difference in size and weight of the potato slice.
In unusual environments, osmosis can be very harmful to organisms. For example, freshwater and saltwater aquarium fish placed in water of a different salinity than that to which they are adapted to will die quickly, and in the case of saltwater fish, dramatically. Another example of a harmful osmotic effect is the use of table salt to kill leeches and slugs.
Suppose an animal or a plant cell is placed in a solution of sugar or salt in water.
1.If the medium is hypotonic relative to the cell cytoplasm — the cell will gain water through osmosis.
2.If the medium is isotonic — there will be no net movement of water across the cell membrane.
3.If the medium is hypertonic relative to the cell cytoplasm — the cell will lose water by osmosis.
Essentially, this means that if a cell is put in a solution which has a solute concentration higher than its own, it will shrivel, and if it is put in a solution with a lower solute concentration than its own, the cell will swell and may even burst.
Chemical gardens demonstrate the effect of osmosis in inorganic chemistry
•مميزات الحفر باستخدام طريقة الحفر بالدقاق :
•التكلفة المناسبة لقيمة برج الحفر ومعداته وبساطة استخدامها.
•يمكن الاعتماد على العينات التي يتم جمعها بواسطة هذه الطريقة وتحديد أعماقها بدقة جيدة.
•يمكن تشغيل الحفارة بواسطة فرد واحد فقط على الرغم من ضرورة وجود شخص آخر ليساعده على تشغيل وإدارة الحفارة.
•بما أن حجم الحفارة غير ضخم (متوسط) فإنه يمكن نقلها إلى بعض المناطق الوعرة التي لا تصلها المعدات المستخدمة في طرق الحفر الأخرى.
•يمكن نزح البئر في أي وقت يريده الحفار وبذلك يمكنه تحديد العطاء النوعي للبئر عند ذلك العمق.
•الطاقة اللازمة لتشغيل الحفارة منخفضة جدا مقارنة بالطرق الأخرى
•التكلفة المناسبة لقيمة برج الحفر ومعداته وبساطة استخدامها.
•يمكن الاعتماد على العينات التي يتم جمعها بواسطة هذه الطريقة وتحديد أعماقها بدقة جيدة.
•يمكن تشغيل الحفارة بواسطة فرد واحد فقط على الرغم من ضرورة وجود شخص آخر ليساعده على تشغيل وإدارة الحفارة.
•بما أن حجم الحفارة غير ضخم (متوسط) فإنه يمكن نقلها إلى بعض المناطق الوعرة التي لا تصلها المعدات المستخدمة في طرق الحفر الأخرى.
•يمكن نزح البئر في أي وقت يريده الحفار وبذلك يمكنه تحديد العطاء النوعي للبئر عند ذلك العمق.
•الطاقة اللازمة لتشغيل الحفارة منخفضة جدا مقارنة بالطرق الأخرى
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