The company "NPO ENT" is engaged in the production of equipment for disinfecting water for various purposes with the help of ultraviolet irradiators. This technology is a relatively new direction, which is becoming increasingly relevant every day. The reasons - environmental friendliness, safety, low cost, excellent water quality and ease of maintenance. p>
The company operates on the market since 1991 and offers a large range of high-performance devices. From the catalog you can choose a variety of equipment for microbiological purification of water, working on a safe and environmentally friendly ultraviolet. Sometimes there are situations when the customer is not satisfied with the standard configuration of installations. In this case, we can calculate and create a water disinfection system according to individual customer requirements. p> Clean technologies of the future
We produce plants that use economical mercury or amalgam lamps as UV sources. If necessary, our experienced consultants will be able to provide you with information regarding their disposal. p>
As shown by numerous studies, our equipment allows you to absolutely safely improve the quality of the source water. The equipment can be used for: p> systems for disinfecting drinking water, both private and public; disinfection of waste, domestic, technical and recycled water; maintaining an optimal microclimate in water bodies and fish farms; water purification in private and public pools; decontamination of water parks.
All equipment of our production meets European and international standards, as well as sanitary and hygienic standards. The prices for disinfection units are quite competitive, discounts are given to dealers. p> Using UV radiation
The most effective method of microbiological purification is the effect on flowing water by continuous UV radiation, which is generated by UV lamps. Its efficiency is determined by the radiation power with a specific wavelength (mW per sq. Cm) and exposure time (in seconds). The product of the intensity at the time of exposure gives the dose of radiation (measured in mJ / cm ²). p>
From a biological point of view, ultraviolet disinfection of water is based on the property of waves of a certain length to penetrate the cell membrane (shell). Further, it acts directly on the nucleic acids RNA and DNA. Absorbing high-energy photons that make up ultraviolet radiation, nucleic acids receive significant damage. Under the influence of radiation, the process of cell division cannot take place. As a result, the reproduction of any microorganisms in the water stops, they lose the ability to reproduce and become completely safe for humans. In addition, ultraviolet radiation damages the membranes and cell walls of microbes. Which inevitably leads to their death. p>
Water purification using UV lamps takes no more than a few seconds. Therefore, the performance of such a process can be arbitrarily high. In this case, the photochemical effect is slightly dependent on the chemical composition of water. p> Features of installations supplied by NPO ENT Ltd.
According to accepted standards, the minimum dose of radiation should be 16 mJ / cm2 (water purification according to MU 22.214.171.1249-98). At the same time, the number of main pathogenic bacteria decreases by 5 orders of magnitude (100,000 times), viruses - by 2-3 orders of magnitude (100-1000 times). Water disinfection devices from NPO ENT, LLC are designed to create an irradiation dose of 25 mJ / cm². p>
In our installations for the disinfection of water used mercury or amalgam lamps. Their power is in the range from 127 to 500 W, with a wavelength of 250-270 nm. The equipment that performs the disinfection of water, allows you to handle the required amount of liquid according to customer requirements. It can carry out UV cleaning from 0.3 to 2100 cubic meters per hour in a single package. p> Advantages and disadvantages of technology
The method of disinfection of drinking or industrial water using UV radiation is widespread due to the following advantages: p> ultraviolet does not cause changes in the chemical composition and physical properties of water, even at high doses of radiation; ultraviolet disinfection does not change the organoleptic properties of water (which is very important in the food, brewing and some other industries. industry); safety for human health and life, environmental friendliness; universality of impact in relation to the most different types of microorganisms in the water; relatively low cost of equipment; low operating costs; no need for capital construction for implementation; ease of maintenance.
There are also a number of fairly simple deficiencies of the method: p> the dependence of the required radiation dose on the transparency of the water; no aftermath. That is, there is a possibility of contamination of water in the pipeline after undergoing disinfection; influence on the result of suspended matter and impurities; after the death of bacteria, fungi and algae after disinfection in the prepared water, their protein fragments remain. The structure and principle of operation of installations
The main part of the equipment is the disinfection chamber. It is a body (pipe), most often of stainless steel (a special type of plastic can be used). The body has connections for water inlet and outlet, as well as a sampler. p>
The housing has ends with holes in which quartz cases-tubes are installed. Covers are needed to prevent water from entering the lamps located in them - sources of radiation. NPO ENT company uses the most practical mercury or amalgam lamps. The use of sealed covers prevents contact of water and heated flasks and lamps, and also facilitates the replacement of lamps if necessary. The case has a high mechanical strength. Covers are also designed for pressure and pressure of treated water. p>
The design of the equipment is reliable and thought out to the smallest detail. Installations for water disinfection with ultraviolet light are completed with: p> UV intensity sensors; automatic warning system to reduce the dose of water; lamp hours; indicators of the health of radiation sources; quartz cover cleaning system; samplers.
Completion in full increases the cost of equipment. Therefore, it is used only in municipal water treatment plants of high productivity. Installations of low productivity are not equipped with all the elements, which makes the price as affordable as possible. p>
The performance of ultraviolet water treatment systems can range from a few liters per hour (for domestic needs) to thousands of cubic meters per hour (for large municipal systems). Depending on the planned performance, the equipment has a certain number of lamps and case size. p>
Since for ignition and support of the operation of mercury lamps used in the preparation of water, special conditions are necessary, the installations also have a control and monitoring unit. The power consumption of the lamps is relatively small, usually they are not turned off during the entire period of operation. After working out the resource lamp change. Maintenance of quartz covers made by mechanical or chemical means. p>
The systems of purification and disinfection of drinking and other purposes of water can be located anywhere in the overall technological system, both at the beginning and at the end. The choice of a specific place is determined by the technological research of a specific treatment plant. When preparing drinking water, ultraviolet cleaning usually occurs at the final stage of the process. p>
Employees NGO ENT perform the following types of work: p> calculation and design of drinking, and process water and wastewater disinfection systems for a specific process; delivery of installations throughout Russia and abroad; sale of ready equipment for disinfection of various types of water; installation and adjustment services of modern systems; service maintenance and repair (warranty and post-warranty) equipment for disinfection.
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