Traditionally, water filter housings to be used in high-temperature applications needed to be constructed of stainless or carbon steel. They were difficult and costly to produce, they were subject to oxidization (the result of years of exposure to chemicals and reaction-catalyzing temperatures), and they would retain heat even hours after the water supply had been shut off, making maintenance time consuming. In recent years however, an alternative to these costly housings has arrived: the nylon filter. Actually composed of a glass-reinforced nylon, these filter housings are more than capable of performing the same tasks of their now-outdated steel counterparts, housing standard high-temperature sediment and carbon filter cartridges with ease. Not only are nylon filter housings cheaper to purchase and maintain, but many models can withstand the same high temperatures as traditional steel housings – in most cases, Nylon filters are also ideally suited to industrial applications. Though they should not be used with ketones, an excellent chemical compatibility allows glass-reinforced nylon filter housings to handle organic solvents, sea water, alcohol, petroleum, and vegetable oils. New developments continue to be made in filtration systems each year, making purchase, maintenance, and repair easier and more cost effective than ever.
Author: filterpurerd
Treating Your Water with Oil Absorption
In applications where oil and other hydrocarbons are present in a water supply, it is especially beneficial to make use of a filter designed especially for this purpose. Doing so will not only effectively clean the water supply, but it will improve the life of subsequent filters and filtration systems down-line. Oil absorbing cartridges are made either of activated carbon or, more recently, modified cellulose media, which is extremely effective in reducing levels of hydrocarbons in a water supply, leaving it markedly cleaner, and better-suited for a number of applications, including: gas/oil facilities, surface water runoff, machine shops, factories, and car/truck washes. Activated carbon is a charcoal that is processed to make it highly porous. Coal, wood, and coconut shell are among the most commonly used materials in making an active carbon because their porosity gives them a very high surface area. In fact, the surface area of 1 gram active carbon equals to around 500 m².
Activated Carbon Filters
Active carbon shows hydrophobic and oleophilic properties, making it perfect for oil absorption applications. Oil and other chemicals cling to the carbon filter, while water is allowed to pass through the pores. Impurities that cling to the filter can clog the pores however, rendering the filter ineffective.
Modified Cellulose-Based Filters
Modified cellulose-based filters, on the other hand, chemically bond with hydrocarbons, resulting in instantaneous absorption – one more effective than activated carbon. In fact, modified cellulose media technology effectively reduces hydrocarbon levels by 95% in a single filtration pass, and hold 250-300 percent of its own weight with no release of removed hydrocarbons Both these filters are unfortunately, are incapable of removing dissolved impurities or salts. They cannot be used where high quality purification is required. However, they remain a cheap, effective, and easy-to-maintain filters solution to oil contamination within a filtration system.
Point of Entry Filters (POE) vs. Point of Use Filters (POU)
In many commercial applications, several water filters, including those which are dedicated to specific pieces of machinery, are needed. In these cases, individual filters, known as “point of use” (POU) water filters are located inline just before the water is dispersed or enters the machinery for which the water is intended. As POU filters are usually application specific, they can be tailored to the needs of the user, and are often used in place of a generic reverse osmosis system. This fact makes a standard POU water filter easier to maintain, but usually more expensive. Because of this, it behooves the business owner to take measures against the premature degradation of the POU water filter. The easiest way to accomplish this is to install a “point of entry” (POE) water filter. POE water filters perform water filtration for the entire commercial water service. They are responsible for purifying the water supply to all faucets, pieces of machinery, and toilets. The advantage of this approach to water filtration is first that only one system must be purchased for an entire service, and second, that it greatly improves the life of any other filters present down-line. The most popular POE filters used are either sediment prefilters, or carbon filters.
- Sediment filters are responsible for removing sediment that can clog softeners, prematurely foul carbon filters, or ruin the down-line plumbing. In addition, they reduce TDS (total dissolved solids) or many other harmful chemicals like nitrate, nitrites, etc.
- Carbon filters are effective for certain trouble water conditions such as bad taste or odor.
Still other POE filters are designed as an entire system. These units typically employ a four-stage filtration process. The first stage of filtration removes sediment in the water that may clog the filter, reducing its effectiveness. The second stage uses a chemical process called water atomization to alter the molecular structure of chlorine and turn it into the harmless molecule, zinc chloride. The third and fourth stages of filtration involve activated carbon filters to filter pesticides, and other harmful chemicals. By removing chlorine and other harmful chemicals at the point-of-entry, the whole service is provided with cleaner, healthier water at a reduced cost to the business owner. Pre-filters are typically much less expensive than down-line, application specific filters, making their replacement cheaper than that of the filters the POE filter is saving.
Canadian Company Pioneers Oil-Separation Technology
News stories this year have brought the issue of oil contamination of water to the forefront for even the least interested of parties. In fact, the recovery process since the Deepwater Horizon oil platform explosion on April 20th of this year was the top story of nearly every 5 o’clock news program around the country for several months. Questions of how best to contain the spill, cap the well, and clean up the gulf have been especially important as we attempt to ascertain the true effects of the contamination on our seas and ocean life. So far, no one seems to have a “magic bullet.” That all may change however, as a new oil and water separation technology, pioneered by Canada’s Cancen Oil and Wescorp Energy, Inc. has been showing some promising results. Still in its preliminary stages of testing, the “H2Omaxx” system is outperforming even its creators’ expectations. “We are very pleased with the preliminary results from the unit’s operation,” said Cancen CEO Keith Talbot, “H2Omaxx has been effectively processing a wide variety of waste streams from the Alberta oil sands, which are considered to be some of the dirtiest and most difficult water to clean in the oil industry. H20maxx is successfully cleaning produced water — which contained in excess of 25% oil and 10% solids and also contained asphaltines and grease — to new, higher levels once thought unattainable with conventional methods.” The H2Omaxx system utilizes tiny bubbles of nitrogen gas – ranging from one micron down to a nanometer – to lift oil droplets to the surface of a holding tank that can then be skimmed off. While still in its initial phase of testing, the unit is showing promising results that both its creators and onlookers alike can’t help but “wonder if” could be signs of prospective application outside of oil sands. Wescorp has designed the H2Omaxx technology unit in a variety of sizes, including a mobile unit and commercial units. With the ability to process up to 65,000 barrels a day, the commercial unit could certainly be used in an oil cleanup situation. The oil spill is long from gone. In fact, nearly 25% of the oil calculated to have exited the well over the last 4 months is sitting nearly a mile under the surface of the ocean in a 22 mile-long strip. Hopefully, with the help of technologies like the H2Omaxx, we can reclaim our oceans for the environment.
Hydroblend Cuts Long-Run Costs
For applications in which water is heated past its boiling point, it is advisable to employ measures designed to reduce the level of lime and other minerals in the water service to safeguard against scale buildup in water boilers. Such buildup can lead to machinery damage, and if left unaddressed, failure. While the most common example of applications in which this is a concern is the brewing of coffee and other fine coffee beverages, the filtration of, and control of scale in, water used in steam equipment is extremely important. Because each piece of steam machinery, such as those used in the food service industry, by definition contains a boiler in which water is heated past its boiling point, harmful scale buildup will result if water used is not appropriately treated. There are two popular methods of addressing the presence of scale in a water supply, depending on whether scale has already formed or not. They are: Polyphosphate Granules
Generally used to clean boilers which have already suffered an amount of scale buildup, polyphosphate granules, such as Everpure’s proprietary formula “ScaleKleen,” remove limescale quickly, easily, and safely in an environmentally friendly manner from OCS brewers, steam, warewashing, and other equipment. Because activated citric acid is the typically the primary ingredient in these non-toxic blends, they are safer to skin and won’t burn clothing like conventional deliming acids. In addition, they are sewer system disposable, so you can pour it down the drain.
Hydroblend Scale Sticks
“Hydroblend” scale sticks are the second component of a two-stage water filter designed by Everpure. Scale inhibitor feeders (scale sticks) reduce scale inline by dispensing a controlled amount of Hydroblend, a sophisticated blend of polyphosphate compound which inhibits scale. As such, scale sticks present in dual-filter systems designed for OCS brewers, steam, warewashing, and other applications significantly reduce scale inline, effectively preventing scale from ever forming.
While both methods are used in modern commercial settings, each approach has its advantages. Polyphosphates have been used in the prevention of mineral scale and corrosion control for years as a cost-effective method of controlling scale within a water supply. Hydroblend products on the other hand, are comparatively new, and marginally more expensive. There are however, several advantages. Hydroblend products are:
- 100% active, so there is no residual product left over.
- specifically designed to provide mineral scale prevention and corrosion control in high temperature and high hardness applications, while phosphate granules are not.
- designed to ensure that the product feed rate is consistent over predictable time periods.
- available in various configurations allowing it application to many different processes.
Regardless of which approach is used, it is important to monitor and control scale levels within a water supply. Doing so will prevent costly repairs and possible replacements.
Water Softening: A Simple Approach to Great-Tasting Water
“Hard water” is generally defined as that which has a high concentration (>100mg/L) of dissolved salts, like calcium and magnesium, which are absorbed from the earth. This excess of particulates can cause numerous problems for the home and small business owner, such as difficulty in regulating water pH (important for pool and aquarium owners), and scaling/deposit buildup in pipes, boilers, and machinery which makes use of water, such as coffee and espresso makers. The classic tell-tale sign of hard water is difficulty in lathering soap and shampoo. Another such problem is the taste associated with hard water. Water containing mineral contaminants can taste bitter, especially when used to cook or brew fine coffee. When this becomes a concern, many turn to water softening to remove these minerals and make them palatable. Softening, while not a lengthy process, is complex when compared to other purification methods such as reverse osmosis. Water softener cartridges make use of either an all-in-one cartridge such as the Everpure ESO7 or a drop in bowl system such as Everpure’s SO-204 to remove excess minerals from your water. With the ESO 7, not only is water softened, but dirt and particles are removed as well. The ESO 7’s unique three-stage blending cartridge provides softened, buffered, and precoat filtered water, while the cartridge’s ion exchange resin with buffering capabilities and high-capacity coconut carbon filtered water bypass make it the perfect choice for specialty coffee, espresso, and ice tea applications. Systems such SO-204 combine small size and ease of use with commercial application capability. Measuring just 26”x5.125”x5.25”, the SO-204’s replacement cartridges are sized to fit under any counter or mounted on the wall behind the coffee or espresso machines. While relatively small, the SO-204 is designed to handle water having up to 30 grains per gallon (500mg/L) – 5 times the definition of “hard” water. Moreover, the filters are easy to change. Not only do replacement cartridges not require a housing wrench to be changed, that is, they can be hand-tightened, but cartridges require only one minute of flushing. Many high-end coffee and espresso machines require a water softener to ensure the quality of the coffee is preserved through the brewing process and warranty purposes. If you think you would like to make use of a water softening cartridge in either your home or business, contact Filter Pure Systems, Inc. at 1-800-942-7873 today.
Seawater/Brackish Water Reverse Osmosis
Reverse Osmosis, also known as hyper filtration, is the preferred method of seawater and brackish water purification. As the equipment needed to perform reverse osmosis is cost-effective, and the process requires little input energy compared to other methods of purification, reverse osmosis has become the worldwide leader among desalinization methods. Developed at UCLA, and used commercially since the 1970’s, seawater reverse osmosis has served marine professionals for nearly 40 years. Seawater Reverse Osmosis (SWRO) is used in a wide range of commercial applications. Marine professionals such as commercial fisherman and offshore rig workers rely on SWRO to provide freshwater for routine daily tasks such as bathing, cleaning and of course, drinking. In larger applications, such as cruise ships, SWRO is sometimes also used. In such applications, it is necessary not only to desalinize water, but to provide quality freshwater. Cruise liner restaurant professionals count on SWRO for water used for cooking, as well as making coffee, soda and other beverages. Here, consistency is key. By way of its simple yet effective design, reverse osmosis is able to consistently satisfy the needs of those who count on it. The process itself is relatively simple and straightforward. In order to purify a liquid, the “solvent” (in this case, water) is put under pressure in excess of 250 psi for brackish water and 1000 psi for seawater, forcing it through a semi-permeable membrane. This application-specific membrane allows water molecules to pass through, but catches “solutes,” yielding purified water. When employed, reverse osmosis is capable of not only of de-salting water, but also removing other impurities such as bacteria, ions and particulates. If you’re considering using reverse osmosis to address your water purification needs, browse our inventory of Everpure reverse osmosis filters.
Which Water Filter is Right for You?
Deciding on a water filtration system for your home or business can be daunting. There are numerous types of filters, each of which is manufactured by each different brand, totaling thousands of options for anyone looking to choose between them. We at Filter Pure Systems, Inc. have recognized this, and prepared a short preparatory question and answer guide to help you make your decision. The first and most important question to ask yourself when determining which filter to purchase is: “What do I need my water filter to do?” While the answer to this question may seem obvious enough, it’s likely not. Granted yes, at the end of the day, you want your filter to “filter” your water, but there’s much more to consider. Am I purchasing a water filtration system for my home or business? Water purifiers “run the gamut” of design. Generally speaking, units designed for commercial applications are larger than residential designs and are more expensive to maintain. In addition, they generally have specific applications not required in a residential setting. As a result, they are capable of handling more frequent use, satisfying the highest level of commercial demands. It’s advisable for these, among other, reasons to consider going commercial when purchasing a water filtration system. Such systems include the drinking water QL2-OW200L system, ice machine Insurice Single-i2000(2) system or fountain QC7I Single- MC2 system. Do I have a specific application for my water filtration system in mind? It is important to determine exactly what your water filter it will be responsible for doing, before buying it, for two main reasons. First, if you have a specific application in mind, it may be necessary to purchase a unit designed to address this concern. Some water filtration units have built-in water softeners or de-mineralizers designed to yield a specific quality of water. This is desirable for many commercial settings, especially where the water is being used to make beverages such as coffee and soda espresso. Second, it may be that narrowing down the use of your unit will greatly reduce both upfront and ongoing costs. Generally speaking, the smaller demand put on your filtration system, the lower the cost of maintenance. If you decide that your system need only be used for part of your water supply, you are very likely to save money. How much water do I need, and how fast? While this is typically only a concern in commercial applications, it may also be a useful question in residential applications where the filter is responsible for purifying the entire home’s water supply. Filters have their limits. Only a predetermined amount of water can successfully be processed by a unit in a given amount of time. This measurement is called “flow” or “flux.” While units with lower flow may be less expensive, they may require a little patience on the part of their user. Units with greater capacity for flow can provide more water in a shorter period of time, but are generally more expensive. There are many questions to ask yourself when considering a water filtration unit. If you would like help making your decision, or have already decided, give Filter Pure Systems, Inc. a call at 1-800-942-7873.
Realizing the Benefits of UV Sterilization
Ultraviolet water sterilization is a process by which the threat of microorganisms and other biological contaminants, which are present in municipal water supplies and private sources (like wells), can be effectively nullified through exposure to a specialized ultraviolet bulb. How does it work? Sterilization systems which employ ultraviolet radiation operate on a few simple principles. First, a UV source, which is usually as simple as a specialized light bulb, is placed inside a reflective quartz sleeve. This sleeve is placed over a flow chamber which exposes all water passing through the system to a unique, specially determined germicidal wavelength of 254 nanometers. Continue reading Realizing the Benefits of UV Sterilization
What’s Really In Your Drinking Water?
Many of us take the quality and purity of our water for granted. While the public water supply is generally safe for most people, it is not always as harmless as we’d like to believe. In addition to additives like chorine and fluoride, tap water may contain various minerals, microorganisms, and chemicals. Regulating Water Quality The Environmental Protection Agency (EPA) closely monitors the quality of public drinking water. Monitoring must adhere to the Safe Drinking Water Act, which specifies the method for choosing which contaminants are monitored and determining what contaminant levels are acceptable. Sometimes, the acceptable level is set at zero, but water treatment plants cannot always achieve this level of purity. This disparity is especially common for contaminants that pose a particular hazard for children, the elderly, and people with weakened immune systems. Currently the EPA monitors approximately 90 different substances. However, over 260 different substances have been found in U.S. tap water. Some of these may simply be a nuisance, while others can pose a health risk. Meanwhile certain contaminants, such as lead, may be introduced through plumbing in individual households. Common Tap Water Contaminants Continue reading What’s Really In Your Drinking Water?