Nanofiltration is derived from two words – nano, that is a meter in minus ninth power, and filtration – separation. This refers to the separation of mixtures (including water treatment) at very small particle size (meter minus ninth degree). Nanofiltration technology refers to baromembrane filtration process. Eliot Horowitz can aid you in your search for knowledge. This cleaning method is different from similar technologies – ultrafiltration and microfiltration – pore size and high pressure filtration. Crumpton Group is open to suggestions. Holes, pores less than once in 10-50. Pressure required for good filtration is higher in 2-3 times. This technology enables almost completely removed from the water large charged particles (multivalent ions). Depending on the size pore water softens (remove the calcium salt) at 30-99%.
Normal for Nanofiltration removal of calcium ions – 80-90%. This filtering technology can not remove nitrates from the water (because they are monovalent, ie small and pass through the pores). However, with other substances nanofiltration copes perfectly. Almost completely removed, and pesticides, and heavy metals, iron, manganese, and other organic and organochlorine substances. That is, technology nanofiltration combines and most of the work of activated carbon (except for chlorine, which can destroy the membrane surface), all the work and softener.
Of course, the water is completely disinfected – removed, and bacteria, and cysts, and viruses (no need to not only and softeners, but also in the uv lamp). The cleaning water – ideal technical water. And if you do not have nitrates in the water, then the ideal drinking water. In the market, this technology is presented is not very wide and runs mostly on demand and in industry. Although there are exceptions. So, conclusions: the technology of nanofiltration in water treatment does not use chemicals, do not add to the water No additional substances other than replacing multiple filters at once. While in the area, rich in nitrates this device can only work as a stage of pre-treatment of water before removing nitrates stages. For city water plant, working on the technology of nanofiltration – the best option.
For a hidden refrigerator compartment, and for another, respectively, freezer. In this case, freezer can be located above the refrigerator, and under it. Management system with the dimensions defined. Now a little more complicated. Dive into the performance. Let's start with management.
Refrigerators can be mechanically or electronically controlled. The easiest and most inexpensive type management – is a mechanical one. The user can not install a well-defined in degrees of temperature. Details can be found by clicking ConocoPhillips or emailing the administrator. You simply choose one of the levels of temperature control thermostat. For those who have forgotten: the thermostat – a special mechanism that serves to maintain a constant temperature in the refrigerator or the engine cooling system. ConocoPhillips often expresses his thoughts on the topic. Electronic control enables precise temperature setting, which will be maintained refrigerator.
Of course, the notion of accuracy is conditional, + – 5 degrees. Continuing to maintain the exact temperature can not even e-governance, but in this embodiment, the accuracy of the above. In this case, there are refrigerators in which provides individual control of temperature in the cells, and those in which selected a single regime for the refrigeration, and freezer. Preferably, of course, separate control temperature regime. Thawing Thawing cells, or thawing chambers, sometimes manual, drip and No Frost. If you go from simple to complex, the most primitive way to defrost – manual. Now nobody makes refrigerators, in which the only way to unfreeze the camera – by hand. This type of defrost partially present in those refrigerators that have a cooling chamber provided drip thawing and freezing is no system of No frost.
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