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I was just reading a article on air quality in my home town.?
Now obviously there are many factors in the sources of pollution. In my towns case a huge factor is local mills, wood treatment plants, and an oil refinery. Each one of these places has giant smoke stacks that at times put out so much smoke that it is hard to tell the difference between a cloudy day and a full scale mill running day (seriously). There are all kinds of health and respiratory problems that come as a a result of living with this.
My question is, does there exist some sort of filtration system that can be put on these massively polluting chemical smoke stacks that can at least reduce the amount of toxins in the air. In this modern day and age of super technologies there has to be a way to filter harmful emmisions such as these.
Wet scrubbing is used extensively in many industries as one type of air emissions control device. Many industrial processes produce gaseous emissions. Most often these emissions contain significant amounts of particulate matter which must be removed in order to meet clean air standards. Sometimes other contaminants such as SO2 or NO2 must also be treated before the emission can be discharged through the stack.
Many companies have developed wet scrubbing technologies, each with a little different twist on the physics of how they work. There are low energy units and high energy units and each have specific uses. For particulate removal the basic idea is to impact a water droplet with a particulate. Particulate can be very small say 10 micron or less and
they do not readily settle out of the gas stream since they are so light.
So, how to make them heavier? With a high energy venturi scrubber, the gas stream is passed through a venturi throat which increases the gas velocity. Water sprays are also
introduced before and within the throat causing particulate in the gas to impact and be captured by water droplets. The gas stream now exits to a large diameter vessel where the air velocity is reduced and the droplet, now being very heavy, drops to the bottom taking the particulate with it. The water is collected, the solids removed, and the water reused.
The type of solution you want to use depends on what you are trying to remove. For fine particulate, you would use water. To remove SO2 you would use a sodium based alkaline solution in water. This type of scrubber would be a low pressure spray tower as opposed to the high energy venturi. Each application is different and must be looked at
separately.
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Cuisinart CleanWater® Countertop Filtration System $99.95 1½-gallon tank capacity – Compact Size Dispenses cold (44°F) or room-temperature filtered water Blue LED light indicates when water is ready Removable water tank 1 spigot Filter included GF-80 filter reduces contaminants including (for pH level 6.5): Lead 98.7% Chlorine (taste and odor) 97.5% Mercury 92.8% Benzene 84.1% Cadmium 96.6% Copper 85.0% Tetrachloroethylene 92.5% Toluene 89.8% Filter life is 3 months average household use (up to 48 gallons) |
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Cuisinart Filter Replacement For CDF-100 $5 Filter Replacement for CDF-100 |
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Brita 42629 Slim Pitcher List Price: $16.00 Sale Price: $9.49 Used From: $9.00 Average Rating:   |
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The Brita 42629 Slim Pitcher ensures that you will always have healthful, purified drinking water at your fingertips. With a capacity of 40 ounces, this smartly designed, compact water pitcher is perfect for small households... |
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PUR PBSS Push-Button Refrigerator Ice and Water Filter Cartridge List Price: $34.99 Sale Price: $30.59 Average Rating:  |
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PUR QTSS Whirlpool Quarter Turn Refrigerator Ice and Water Filter Cartridge List Price: $29.99 Sale Price: $21.95 Used From: $24.99 Average Rating: |
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Replaced regularly, PUR water filters reduce contaminants to provide clean, fresh tasting water and ice. Reduces:Cysts and Turbidity - linked to gastrointestinal problems. Lead Chlorine taste and odor for better tasting water... |
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Clean Water SystemTaste The CleanThe Restore Filter's activated carbon and ion exchange resin work together to filter your water so you get cleaner, great-testing water.Filter replacement is essential for product to perform as represented... |
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Vapir Replacement Filters for Vapir and Nicohale Filter Systems 2008 VAPIRTM Replacement Filters for Vapir and Nicohale Cigarette Filtration Systems Not ready to quit smoking but what a healthy way to indulge? Want to help reduce the heavy lungs and hard cough? The Vapir Magnetic Cigarette Filtration System might be just for you! FOR USE WITH THE VAPIR MAGNETIC FILTRATION SYSTEM - IT CAN EFFECTIVELY REDUCES SMOKE TAR AND NICOTINE! 100 Replacement Filters per purchase for Vapir or Nicohale Cigarette filters, which work great with store bought, filter or non-filtered cigarettes or hand rolled cigarettes... |
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