Pure water equipment

详情

1.1, reverse osmosis equipment technology introduction
Reverse osmosis technology is the most advanced and most energy efficient membrane separation technology. Its principle is above solution under the action of osmotic pressure, based on other material can't through the semipermeable membrane and the substance and water to leave. Due to the reverse osmosis membrane membrane pore size is very small (only for about *0 a), so can effectively remove salt dissolved in water, colloid, microorganisms, such as organic matter (removal rate as high as *7% - *8%). Reverse osmosis is the high pure water equipment the most used one kind of desalting technology, its separation object is solution of ion range and molecular weight of hundreds of organic matter; Reverse osmosis (RO) and ultrafiltration (UF), microporous membrane filter (MF) and electrodialysis (EDI) technology belong to the membrane separation technology. Nearly *0 years, reverse osmosis and electrodialysis, ultrafiltration and membrane filtration has entered the industrial application, mainly used in electronic, chemical, food, pharmaceutical and drinking pure water, etc.
1.2, reverse osmosis equipment, reverse osmosis pure water equipment principle of work
A. reverse osmosis equipment and osmotic pressure
Reverse osmosis equipment phenomenon in nature is a common, such as a cucumber into the salt water, cucumber could because of water loss and smaller. The cucumber water molecules into the brine solution process is the process of osmosis. If you use a water molecule can only through the film will be a pool partition into two parts, the diaphragm on both sides were injected water and brine to the same height. Over a period of time can be found to reduce the water level, and saltwater level increased. We put the water molecules through the diaphragm migration to the brine phenomenon called osmosis phenomenon. Salt water level rise is not open-ended, to a certain height will achieve a balance point. When the diaphragm ends level difference represents pressure is called the osmotic pressure. The size of the osmotic pressure and the concentration of brine is directly related to.
B. reverse osmosis phenomenon and reverse osmosis water purification technology
In the above device to achieve balance, if in the brine end head put some pressure, at this time, water molecules will end by salt water to pure water end migration. Fluid molecules in under the action of pressure by dilute solution to the concentrated solution migration process this phenomenon is called reverse osmosis phenomenon. If the brine to join more than one end of the facilities, and in the end put more than the brine osmotic pressure, we can at the other end to get pure water. This is the principle of reverse osmosis water purification.
Reverse osmosis pure water equipment production key has two, one is a selective membrane, we call it a semipermeable membrane, 2 it is to a certain pressure. Say simply, reverse osmosis semipermeable membrane has many hole, the hole size and the size of the water molecule is, due to bacteria, viruses, most of the organic pollutants and hydrated ion are better than those of water molecules, which can't through reverse osmosis semipermeable membrane and reverse osmosis membrane through the water phase separation. Many kinds of impurities in water, soluble salts is the most difficult of the clear. Therefore, often based on desalination rate level to determine the effect of reverse osmosis pure water. Reverse osmosis desalination rate is mainly dependent on the discretion of the reverse osmosis semipermeable membrane selectivity. At present, high selective reverse osmosis membrane element desalination rate can be as high as *9.7%
1.3, reverse osmosis equipment process:
Raw water (water), booster pump, many medium filter (quartz sand (**4 orders / **6 orders)/manganese sand/SS filter material), activated carbon filter (coconut shell carbon/fruit shell carbon/coal carbon) - softener (optional device) - level 1 reverse osmosis host, level 2 reverse osmosis host - reverse osmosis cleaning device, uv sterilizer, precision filter, water point.