UV disinfection systems Shanxi Changzhi Zhao Xiang 15511632268/0311-89943986/QQ1838722340???? Shanxi Changzhi ultraviolet disinfection equipment for the pipeline, the pipeline vertically arranged N branch UV lamp, high-strength low-pressure UV lamp lights, each lamp power of 150W, Shanxi Changzhi ultraviolet disinfection device settings inlet and outlet, the need to treat the water slowly flows through disinfection equipment with this device, the water within seconds through sterilization. For field Changzhi ultraviolet disinfection device, in order to avoid the UV intensity smaller area, which requires the distance between the UV lamp or a UV lamp and the wall spacing of rational design, ultraviolet light is preferred that the water be irradiated uniformly . In addition to design adequate UV dose, since at high doses conditions, the intensity of effects can be neglected. Shanxi Changzhi ultraviolet disinfection equipment, UV intensity in the wall to install a smaller intensity measurement probe, you can always monitor the intensity of light at the wall. After a period of operation, the UV lamp will appear scale, lower light intensity, in order to avoid the influence of light intensity on the inactivation, the need for cleaning the lamp. ???? Changzhi in Shanxi ultraviolet disinfection equipment process design must consider the UV transmittance of the water, to try to reduce water UV transmittance, so you can lower the strength of the conditions to achieve greater UV inactivation effects, operating cost savings. Groundwater general, the turbidity of low color, low light-absorbing substance, an ultraviolet transmittance greater beneficial UV inactivation of microorganisms. However, groundwater is easy with sand, iron and manganese content is high organic pollution of groundwater or suffer chroma larger, which will reduce the UV transmittance, thereby reducing the rate of inactivation. Based on the above factors, the scene Shanxi Changzhi ultraviolet light disinfection equipment, in addition to meeting disinfection requirements, the need to install additional front in disinfection equipment filtration system to ensure the UV transmittance decreased groundwater impact. ???? Shanxi Changzhi as ultraviolet disinfection disinfection technology, currently used more and more widely, especially in Europe and other developed countries, water plants, in order to control the "two worms" extensive use of ultraviolet disinfection technology Shanxi Changzhi. Shanxi Changzhi UV sterilizer UV on the principle of microbial genetic material (DNA or RNA DNA RNA) has damaging effects, making the microbes in the absorption of a certain dose of ultraviolet light, DNA structural failure occurs, cells lose their activity, not reproduction, significantly reduce the number of bacteria, so as to achieve the purpose is sterilization. ???? Currently, the water pollution incident occurred with increasing frequency in our large, from the Songhua River to Taihu nitrobenzene pollution algae outbreak, to Chifeng water pollution causes diarrhea multiplayer events that lessons requires us to cope with the rapid increase in pollution incident emergency response skills and capabilities???? Shanxi Changzhi UV sterilizer with quick and easy installation, small footprint, broad-spectrum sterilization, etc., suitable for small-scale water supply unit for disinfection. In this paper, M B City area drinking water wells leachate flow caused by E. coli contamination incident, for example, describes the use of ultraviolet disinfection Shanxi Changzhi technology to solve small-scale microbial contamination of the water supply unit unexpected events. A Case Study 1? .1 Pollution incidents described???? B City water wells two M region, mainly to the nearby residents living water. Water wells water disinfection by chlorine dioxide supply residents, usually water quality meet the national drinking water standard. July 2009, water quality testing report shows that E. coli 105 / 100m1, seriously overweight. According to the survey, resulting in water pollution due to water wells west of the landfill leachate remitted. ???? In people's living standards are improving, the demand for health rapid increase in water today, there are still 1.2 billion people worldwide lack access to safe drinking water supply. Untreated water can cause a range of serious diseases, according to UN statistics, the developing countries are due to illness and death caused by unhealthy drinking water. Ultraviolet light water purification products - UV disinfection lamps, healthy water to solve this global problem. Radiation, but also less efficient. 2 UV germicidal characteristics?????? Ultraviolet purification method than the traditional chlorine disinfection has incomparable superiority. Chlorine disinfectant in the water to form a chlorine compound, which is a carcinogen, and the high concentration of chlorine will have a taste, if the drinking water, and will obviously smell smell this unit. Now there is a method of water disinfection: ozone. Ozone can be sterilization, but at high concentrations, smelly w,, decomposition of a long delay time necessary, will most likely via pipeline close to "residential room beauty ozone water, vegetables, but not drink, The C} its smell bad if concentration is reduced, but also reduced bactericidal capacity, in addition to ozone disinfection but also to prevent leakage.???? UV disinfection lamps do not need to add any chemicals, chemicals added often so that the water does not have a good taste or smell, or even this benefit, chemicals themselves may also have hazards such as chlorine may be associated with organic matter from the water reflects the formation of carcinogenic potential threat of chloroform and _I-1 play a role in chemicals will take some time, before use if there is no mixing of chemicals, their effectiveness will be limited. Further, in some cases, certain microorganisms are capable of generating chemical resistance or immunity. while the use of UVC radiation sterilization does not have such situation.???? A typical complete filtration device having a multilayer structure including a L1V light source and a traditional mechanical filter r usually consists of filtration systems professional manufacturer will fit UVI; lamp integrated in the complete filter unit A complete filter structure of a multi-level purification, except LJVC lamp itself, there is a conventional mechanical filter layer for removing solid impurities, and an activated carbon filter layer, for the removal of bad taste and odor with biological substances and fragrance chemicals and other impurities .3 practical application of ultraviolet germicidal lamp UV germicidal lamp 3.1 way???? water (water? IreaUneni) from the processing object points, including wastewater treatment, municipal water treatment, drinking water treatment, clean water, farms and water treatment; _L points from the principle, there are disinfection, sterilization, and other photochemical degradation photolysis reaction; from the use of ultraviolet light disinfection methods to points, put the lamp directly into the water, known as immersion ; ultraviolet lamp to put???? Currently, UV technology at home and abroad for Applied Research in Water Treatment is very active and has more application examples. 3.1.1 over flow???? over-flow device works is this: The pressure generated by the pump flow rate of water flow must be through the UV quartz tube periphery, ultraviolet lamps produce 254? nm UV water disinfection, sterilization flow velocity which is characterized by very quickly, usually in the quartz jacket flow time of not more than! S, thus requiring ultraviolet germicidal lamp intensity is high, the general requirements on the surface strength of more than 3}? 0}}?? V}} Cllly to produce such a high UV intensity, the need to use high-power high-intensity ultraviolet germicidal lamp, if you still want to improve by extending asked disinfection effect, then a longer lamp is generally used to do a longer device, or in a stainless steel outer wall of the handle into rotating vortex structure to extend water over time. 3.1.2 immersion???? with over-flow compared immersion simple structure UV light directly on the water, this method can be used for dynamic water flow can also be used for static water which kind of treatment should pay attention to the lamp may rupture due to unexpected situations; prolonged treatment, the lamp surface is covered by water, algae and other pollutants, will seriously affect the ultraviolet rays revealed. do not. Secretary Liu as a body of water disinfection, the main To understand changes in water quality and water use on the human bushing is called over-flow. fruit, then a longer lamp is generally used to do a longer device, or in a stainless steel outer wall of the handle into the vortex rotating structure, to extend water over time. 3.2 application prospects and fields???? over-flow UV germicidal lamp UV waves not only through the high, long life, clean air of negative oxygen ions generated at the same time, can kill harmful bacteria and viruses up 99.99%???? Although UV germicidal lamp can be applied on all sides and can achieve a variety of purposes, its main application areas can be summarized as following aspects: ① ③ air disinfecting potable domestic water ④ ⑤ industrial process water (drinks) ⑥ ⑦ semiconductors and IC manufacturing wastewater ⑧ pools, spas, aquariums, fish ponds, the other can be used in beer, beverage, water treatment, air conditioning, disinfection cabinet, dynamic sterile hospital room, wards, etc. 4 Summary?? ?? long macro} 4 micro environment pollution has been much attention, while the current Yi dye to reduce the problem has formed a six industries, including improved technologies to reduce pollution in the primary and secondary pollution, and physical, biological, chemically cleaning, while the use of these technologies in UV-C ultraviolet radiation sterilization not only play a role, but also the method of sterilization of high efficiency, it may be the most energy efficient technology in contrast to the conventional chlorine disinfection, ultraviolet many unmatched advantages: 1) strong bactericidal. sterilization, high efficiency, fast sterilization of common bacteria, viruses kill the general in a few seconds of time to complete. 2) broad-spectrum sterilization is high. right all bacteria and viruses can efficiently kill, can permanently inactivate chlorine-resistant microorganisms organizations, such as Legionella pneumophila, E. coli, Pseudomonas, Cryptosporidium, amoebas and bacteria, ultraviolet light by destroying These microbial DNA and DNA repair enzymes to achieve inactivation. 3) the disinfection process does not produce toxic and hazardous byproducts, without changing the disinfectant composition and nature of the water and the surrounding environment does not produce secondary pollution; reduce the amount of chlorine delivery, reducing chlorine, chlorine content of the pool water is reduced, reducing the disinfection by-products, making the pool a healthier environment. 4) UV degradation compounds with chlorine capacity, including a chloramine, two chloramine, triclosan amines, etc., which effectively put an end to carcinogens trihalomethanes (THMs) generation, to eliminate the combined chlorine affects the human body. pungent odor in reducing the pool while effectively improve the swimmers frolic and sports environment, and greatly enhance the pool of staff working environment. 5) Shanxi Changzhi ultraviolet disinfection technology, small footprint, safe and reliable operation, easy maintenance, low cost. visible, Shanxi Changzhi high efficiency UV disinfection sterilization, broad-spectrum bactericidal, clean, safe and reliable, and does not form toxic byproducts, which is currently more and more engineering applications, but there are also medium pressure UV inadequacies, UV sterilizer will Shanxi Changzhi technology in the pool needed attention to the following questions: 1) Shanxi Changzhi UV sterilizer with instantaneous sterilization in order to keep the water clean, can be taken to increase the circulating water cycle methods to solve. 2) To ensure the disinfection effect, the pool should not be required UV dose less than 60, and should maintain a certain amount of wealth. 3) In order to ensure Shanxi Changzhi ultraviolet disinfection effect, all of the Shanxi Changzhi, Shanxi Changzhi, Shanxi Changzhi UV sterilizer device should be set to a wet-line detection probe, if the amount of ultraviolet radiation lamp low the set alarm level should be multi-tube UV generator should have when any single lamp failure alarm function. 4) UV lamp surface dirt will affect disinfection for swimming pool in Changzhi, Shanxi Changzhi, Shanxi Changzhi ultraviolet disinfection device must be equipped with automatic cleaning device online.