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Whether the air filter can be recycled
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Filters usually clean evacuation back to the end user hands. Users will have two sets of filters, when a washing sent for recycling, the other set can be installed on the device. The increase in the third set of filters can deal with All emergency. This filter recycling program can save a lot of costs and landfill space. This recovery process is sometimes called cleaning, sometimes referred to as recycling, its benefits include: cost advantage is huge. Cleaning an air filter cost is the cost of new filter 40-60%. Failure rate of a sharp filter Down before, you can handle 1-6 times, this will save 25-40% of the total cost. The discount will save transportation costs, and from the filter processing cost savings can be offset by transportation costs. I returned a filter into the filter will be less than a landfill. In many cases, the cost of this approach is minimal. Filters containing dangerous substances handling cost may be very high. For that Some of the many welding plant, recovery ventilation hood filters on the significant cost savings. What filters can be recycled? Some filters can be cleaned and recycled. These filters are usually some of the heavier shell and made of fabric or synthetic filter media. However, the modern industrial and transportation sectors in many special air filter is very Durable materials and can withstand several rounds of cleaning. There are air filter is not easy cleaning, HVAC, and paint shop filters used is not very strong, can not afford to filter some of the required recovery Process. Use "cardboard or paper" can not clean the filter housing, is truly a one-time filters. HEPA grade filters are usually not recycled because they use filters rather special, and responsibility. If the air filter is a tube Shaped or flat shaped, and the use of metal or plastic shell, then the majority can be recycled. How to recycle? There are two ways air filter recycling. One is the widely used "dry" cleaning method using vibrations in the air. Another less commonly used, known as "wet." As the name implies, wet to force the captured particles from the water Open filter. After wet cleaning filter re-dried before use. Two methods in the United States and other countries have used. Each method has its supporters. Dry supporters concerned about the filtration efficiency. They believed that the formation of cake in the filter media, the air filter can achieve their maximum efficiency. Dry does not remove all of the cake Therefore, the filter recovery than the initial new filter and high efficiency. The dust deposited on the filter will be filling the big hole on the filter, so filter more efficient. Advocates attention to the wet dust holding capacity and design efficiency. A lot of dust removal in wet cleaning process. The more dust removal, recovery of the dust filter to trap the more. The filter is not changed, Therefore, the efficiency is still the same with the factory settings. The more particles removed after cleaning the dust filters trap the more and, therefore, often do not need to be replaced. Both sides have their advantages. After use, the efficiency of air filter becomes really high. When the particulate filter trap, with the larger hole is part of the filling, more and smaller particles will be retained. After purging air filter can not Removal of packing all the particles in the filter, some hole or partially blocked. When the filter once again brought into use, these parts will stop filling the void by some of the smaller particles. On the other hand, remain in the filter on Particulate filters are part of the total amount of capacity dust. Wet process can remove more dust than dry cleaning filters and lighter, with faster air flow. In comparing the two methods do not also need to consider other issues. The cost of the process itself may be a factor. Dry cleaning equipment for field use, and use of wet process, the filter must be shipped out of the factory . Wet cleaning procedures companies need more, there is no complete sets of equipment bought on the plant can use. Other costs include the human cost of replacement filters. Dry cleaning filter replacement more frequently, because their dust holding capacity decreased. Filter engineers often say, "Do not clean the filter, they are one-off." This argument seems more representative of the environmental concerns, rather than technical level. 70 years of the 20th century, more than one filter system Manufacturer issued a technical bulletin on how to clean their air filters. These announcements are now rare. At present, JOHNDEERE company for some of them produced a manual filter, these instructions can also be printed In the equipment manual. What is the answer? Many one-time design durable enough air filter, you can recycle after cleaning. When cleaning the filter should be noted, should not be concentrated directly at the water or air filter. After cleaning the filter each time, we must Check the shell, gaskets and filter for damage. Filter housing, filter gasket or a damaged filter can not be used again. The original manufacturer's warranty filter does not apply to "clean the filter or recovery." As long as the filter to meet the equipment manufacturer's specifications, using the back Income does not affect the filter original equipment warranty. Case: Fox hood project Fox (FLOWSERVE) TULSA, Oklahoma is located in the factory of welding fume filter facing the challenges of hazardous waste regulations. Dust with their TORIT © filter paper over a drum Rejection filter dust and soot particles, preventing them dissipate into the atmosphere. 72 cylindrical air filter installed in the dust collection device. Under normal operating conditions, replace the cartridge once every quarter Each filter, the average replacement cost of about $ 100. However, the replacement cost of processing after the 150 U.S. dollars / month. Costs are so high is due to welding fumes containing chromium and powder dust. It was determined through Filter the total content of chromium and 12.9 mg / liter. The state's landfill regulations, municipal waste treatment of industrial waste landfill, the total chromium content of not more than 5.0 mg / liter. If the landfill can not be buried these filters, the choice of approach is very limited. One option is to recycle the metal filter. Metal Recycling Association to accept some of the steel contains a small amount of items. Metals Recycling Association Low iron content of the items will be chopped, and then separated from other impurities in metallic iron. Use this approach two problems: 1) regulations do not allow recovery contain "hazardous waste" items (because it contains metal ); 2) was chopped in the filter, there is dust in the filter is likely in the chromium released into the air. It seems the only option is to filter as a hazardous waste to deal with. Hazardous waste disposal the most economical method is to filter individually boxed and delivered to a hazardous waste incinerator. Packing, transportation, processing filters and the burning of the additional cost of labor will be treated as a single filter This increased to 200 dollars. Engineers believe there should be less expensive solution, and contacted experts BIG4 filter filter recycling company. They suggested that the filter should not only be used once, with the help of a process, abandoned drum filter of the Repeated several times before use. BIG4 filtration technology company in 30 years by the JIMBELLEW developed on the basis of trial and error out. He works in a major filter manufacturers began under the requirements of the study and developed a clean air filter works Art. The process takes several hours, cleaning prior to the some of the major quality control checks, including aperture, fracture, structural integrity and inspection of air flow dead zone. BELLEW process through a series of operations to remove the filter retention of 95-99% of the dust particles, and will not reduce the efficiency of the filter, cleaned the dust filter as capacity and design value. Only a small amount of over Filter dust holding capacity will decrease. As the recovery process includes multiple steps, the filter can not complete the cleaning process in the case of re-use. So customers can choose the level of the cost of re-use. The cost of the treatment process is often new 50% of the cost of the filter. If only completed the first phase of the recovery process can further reduce the processing cost. Part of the treated filter containing the metal can be recycled, in the shredding process will not filter Dust shed. Completely clean the filter after the re-use, the maximum cost savings. Full recovery of the filter can be used BELLEW Process many times, until you could not meet quality control standards. Filter cleaning four times, you can filter The overall cost (purchase cost of new filters and burial costs) decreased 78%. Fox is one of the issues concerned must meet environmental regulations. An obvious question is: If the filter is a danger of pollution, then wash out the dust from the above will not be considered to be dangerous? The difference is that the end user how to view filters. If you no longer need to filter, they are the solid waste, solid waste regulations must be met at this time. If the filter is the end user as a one-time items, only to Used once, then the laws and regulations applicable to solid waste pollution filters. However, if the filter is as "reusable" but "dirty", it can be cleaned and re-use. The filter should be buried in the cleaning process to the final decision. Only the end of the cleaning process, if the filter is no longer determined to meet quality control standards before it can be discarded. BELLEW process is reducing the chromium content filter it? Fox tests carried out showed that after the first treatment phase, the chromium content of the filter has been reduced to 1.9 mg / l, well below the 5 mg / l emission Release limits. Eventually meet all environmental regulations.
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