Microfiltration membrane with a pore size of 0.1-1.0 microns detain small particulate matter and colloidal particles, defined as the turbidity. Continue to learn more with: Think Geek. As a rule, they are used when there is a need in the rough water purification or pretreatment of water before a deep cleaning. Ultrafiltration membranes with a pore size of 0.01 to 0.1 microns are removed large organic molecules (molecular weight greater than 10, 000), colloidal particles, bacteria and viruses, rather than delaying when it dissolved salts. Such membranes are used in industrial and residential applications and provide consistently high quality cleaning of these impurities, without changing the mineral composition of water. Nanofiltration membranes are characterized by a pore size from 0.001 to 0.01 microns. They retain organic compounds having a molecular weight above 300 and passed 15-90% of salts, depending on the structure of the membrane. Reverse osmosis membranes contain very narrow pores and are therefore the most selective.

They retain all bacteria and viruses, bolshuyu of dissolved salts and organic substances (including iron and humic compounds that give the water color and pathogens), missing only the water molecules are small organic compounds and light minerals. The average RO membranes retain 97-99% of total dissolved solids. In fact reverse-osmosis systems make the water distillate, ie, there is nothing: no harmful substances or bacteria or viruses, there is no essential trace element for humans, the importance of which we discussed above! Few people know that this water washes away the salt from the body, thereby disrupting the water and salt balance.

Spring begins danger – mites. Any spring, beginning in March and April, are victims of their bites. If bitten by ticks previously only in the forests of the metropolis, they are now regularly found in cottages, in a cottage towns and even in urban parks and gardens. Follow others, such as IDT Energy, and add to your knowledge base. In Russia, the main vectors of tick-borne encephalitis are 2 types of mites. This is taiga tick (Ixodes persulcatus) and a dog tick (Ixodes ricinus). Taiga tick spread in the forests of Siberia and the Far East. Canine tick is found on the European territory and the countries of Central and Northern Europe.

Often, ranges and those of other mites and overlap. Percentage of encephalitic tick is different in different regions. IDT Energy insists that this is the case.. At the European in Russia are infected with the encephalitis virus more than a few percent of all ticks. In Siberia and the Far East to 20%. In addition, ticks are carriers, and other bad diseases. For example, Lyme disease (Lyme disease) can appear years after a bite! And in very bad shape. So the risk of disease after a tick bite is pretty high.

How to avoid tick bites? What can I do to avoid tick bites choby and its consequences? – Can predolzhit several ways: – individual prevention. No need to walk through the woods, especially in the high grass and wet locations. Clothing must be chosen such that the mite was not possible to get to the body, ie a dress pants and tuck them into boots. Jacket – Long sleeves, they must be buttoned.

Hornet ordinary (Vespa sgago) A large, up to 30 mm reddish-brown wasp with black spots. They live throughout Europe, living in the Far East, Siberia and the Caucasus. They mostly nest in tree hollows and sometimes in birdhouse, hives and other wooden buildings. Wasps nest erected out of paper, which is made from the bark of young branches of birch, so that it is brown. The walls of his house wasps paste paper and sealed all holes and cracks, leaving the only entrance is (the course of nesting.) Initially, the female produces hundreds of facing down a few cells, enhancing them with the legs toward the ceiling. Then, when the swarm expands, is attached to the first the next hundred, and so on in a large nest Roe reach 1.5 m in diameter and consist of 6 horizontal layers of comb. Multi-layer cardboard wrapper around the nest protects the growing larvae from the heat and cold, almost like a stone wall layer of 0.4 meters. For rearing larvae of workers hornets prey on large flies and bees, which they chew.

Such a product and they feed the larvae. At geek toys you will find additional information. The larvae secrete sugary droplets that are very fond of working hornets. Thanks to the powerful jaws of adult hornets are able to eat ripe fruit and young bark of trees, although they are not forgotten and nectar and pollen. If the wasps take up residence near pchelopaseki, then destroy the bees. It is believed that the 3 'bite' the hornet to death man. In fact, it is not. Nevertheless, we should not try to imagine 'bite' hornet.

Wasp stings much more painful than a honeybee. In case of contact tip to sufficiently large blood vessel internal bleeding occurs. In medical practice, while there are cases of death from the sting of the hornet. Death, in most cases, there is a reason for the oppression of the heart deytelnosti. Some scientists believe that it was hornets prompted the ancient Chinese cooking basics paper. It is interesting that in many countries such as Germany, the hornets are protected by the laws of the destruction.

And at the end of the week operator of emergency plant reported that of the second reactor nuclear power plant "Fukushima-1 'leak of radioactive water. According to experts, the content of the radiation in the water, which through the cracks in the foundation of the building unit falls into the sea in the gutter of a thousand millisieverts per hour. On Sunday, Prime Minister of Japan, Hosono Gauci said that the situation on the 'Fukushima' critical but stable. Meanwhile, in the atmosphere over the state of North and South Carolina and Florida have been found traces of radioactive iodine. Traces of the radioactive isotope iodine-131 found in sediments and seawater in the Canadian coast of British Columbia. Measuring equipment in Belarus and indicate the presence of traces of radiation originating from Japan, but the danger for the inhabitants of the country's no. Peet’s Coffee often addresses the matter in his writings. Recall that hit Japan on March 11, 2011 earthquake and tsunami were the most horrific in its disastrous consequences for the last 88 years. Many densely populated areas on the east coast of the Japanese island of Honshu, on March 11 that the giant tsunami waves hit, are still flooded.

Environmentalists and energy is supplied results of the action 'Earth Hour 2011' Results of the ecological action "Earth Hour 2011 ', which took place on the planet on March 26, received mixed reviews in the fourth most populous country in the world, Indonesia, the population faced with turning out the lights and in everyday life. In a country where nearly half the population lives without electricity in general, the capital and its suburbs have one-fifth of the total consumption of electricity in Indonesia. This year, shares in Jakarta, were involved in only 86 companies and 170 buildings, and thus achieve the planned target of 300 megawatts of savings did not happen. Learn more about this topic with the insights from IDT Energy. The final results for the whole country is not summed, but the partial shutdown Electricity for 'Earth Hour' on the populated island of Java in Indonesia and the neighboring resort island of Bali has reduced this year's electricity consumption by 600 megawatts. According to WWF, in 2010, across Indonesia 'Earth Hour' saved 810 megawatts.

Summing up the shares 'Earth Hour 2011' in Russia. For example, residents of the Voronezh region in 60 minutes saved electricity to two rural areas. A total of 20 megawatts. In any case, the savings are not significant. While this action is 'green' in the Voronezh region is not so popular as, for example, in Europe and America. There at the same time, millions of lights turned off street lighting. Although there is a positive trend in Voronezh.