Ultraviolet water filtration is the process that offers one of the most cost-effective ways to purify water, thereby protecting drinking water against biological contaminants. Ultraviolet or UV protect against water-borne viruses, bacteria, molds, and other pathogenic diseases. Viruses such as hepatitis virus that is known to be highly resistant to chlorine treatment can be relatively eliminated through UV treatment.
Let us have a look at how UV water filtration works
- Invisible Ultraviolet light is emitted from a UV light source that has an output of roughly 254 nanometers, producing radiation that has a significantly greater density than the radiation in the sunlight.
- The flow chamber contains the light source through which water passes. This exposes the water to the UV light. The light source used in such water filtration system is usually a mercury vapor lamp, also called as the germicidal lamp.
- An electric arc present in the filtration system vaporizes the mercury present in the lamp. The mercury present inside the lamp vaporizes, thus producing UV rays of short wavelength.
- These lamps are made out of special quartz glass that permits short UV rays of around 2530 A (Armstrong unit). The wavelength of such short magnitude is achieved due to the low pressure inside the lamp.
- Before purifying the water through UV filtration system, the water is passed through a separate filter to remove any turbidity present in the water. This is because clear water allows better penetration of UV light. Most water filtration systems use a filter of 5-micron before passing it through the mercury vapor lamp.
Pros and cons of using UV water filtration systems
Pros
- The primary advantage of using a UV filtration system is that it is cost-effective and kills a majority of harmful microbes that cause water-borne illnesses.
- These water filtration system starts at just about $250 if you intend to use it as a localized filtration system. Whole house water filtration system costs around $1500.
- UV water filtration system doesn’t consume much electricity and requires as low as 100 watts of power to function.
- Easy to install and maintain, these water purifiers do not damage the septic tanks or plumbing of the household.
Cons
- Even if these water purifiers consume less power, they still require some amount of electricity. Hence these water purifiers cannot work in the event of power outage.
- UV rays cannot be seen by the naked eye because of their short wavelength, hence it is hard to determine if the UV apparatus in the purifier is still working. Thus, it becomes necessary to change the filters twice every year.
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10 reasons why you should own a pair of Chuck Taylor converse shoes
Read moreNow produced by Nike, Converse Chuck Taylors have been around for almost a century. These shoes were typically made to play basketball. But the comfort they provide has made them popular with people across all age groups.
Here are 10 reasons why you should buy a pair now.
- The history is really big on these converse. They were born out of the constant innovation required for footwear in the basketball community.
- They were the first shoes made specifically to play basketball. At a point, 80% of the converse sold were Chuck Taylor’s.
- The Chuck Taylor’s converse you are buying today is the model that was introduced in 1948. So it can be considered a collector’s item.
- Each part of the shoe is intricately designed. The sole is made of brown rubber while the front part is made of white rubber. It is meant to help the person keep their grip. They were the first non-skid shoes ever invented.
- You cannot bruise in these converse shoes. These were made to withstand basketball games. The shoe is made of canvas cotton to help move the feet easily and avoid blisters.
- The logo on the ankle serves as a padding to avoid injury to the player. Ventilation eyelets are small circular metallic rings placed on the sides of shoes. They were added to allow air to circulate inside the shoe.
- The original model was an all white converse. Later came the all black model. Blue and red lines were later added to the trim. They had toe guards, laces and the outer wrap was white. These are the classics and the first of the Converse Chuck Taylor collection.
- Converse are also available in a variety of colors styles, prints, and materials.
- The maker of these shoes went to great lengths to improve the game and popularize it all over the world.
- He changed the ball that was used in the game to a more uniform and grip-worthy design.
- They are unisex and can be worn with any casual outfit.
Converse have become so popular that they have been featured in multiple movies. Even Dennis from Dennis the Menace wore them. Records were set in basketball while athletes played wearing these Converse. They were even used in training by American soldiers in the second World War.
They have several accolades to their name and have sustained through the years simply because of their excellent design and uniqueness. There’s a pair of Chuck Taylor converse being purchased every 43 seconds. When do you plan on getting yours?
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Here’s how to get baby formula for free
Read moreIf you are expecting a baby, you must be aware that with a new baby comes new expenses too. And formula food is one such cost that is absolutely essential. But like so many baby products, baby formula is indeed expensive. And before you settle down on one type or brand of formula food that your little one clearly enjoys having, there are baby formula samples that are available for free. And, though a little effort is required, there are many ways you can get free baby formula samples. Here are a few you can try:
The first stop to find free baby formula samples should be your local food bank. If you could make a call and find out whether they have stock of baby formula, they would gladly give it to you free of cost. Check out the government websites for a list of the local directory of food banks. SNAP (Supplemental Nutrition Assistance Program) and WIC (Women, Infants, and Children) are two federal programs set up to feed families with little children and they could provide free baby formula too.
You may be able to get free baby formula samples from your doctor, pediatrician or local hospitals. Because baby formula manufacturers provide samples for exactly this purpose, that doctors and hospitals pass them on to babies in need of formula food in the hope that they can reach the ultimate user of their product.
If you happen to get your hands on daily newspapers and magazines dedicated to baby and child care, you might find inserts that give coupons for free baby formula samples. And local grocery stores sometimes announce a sale on certain items they carry, this could include baby formula too.
Register online at the many websites that offer free baby formula samples. Manufacturers of formula food like Nestle, Nature’s One, Gerber, Enfamil, Similac and stores such as Amazon or Target have websites/registries where you could enroll and get free sample baby kits that might include baby formulas and also coupons or discounts for future purchases.
While some of these resources need you to qualify as a low-income parent, there are others open to everyone. Try the many different ways mentioned here to get free baby formula samples, from small portions to full-sized cans everything is available for your newborn or infant.