DELOACH BLOG

PFAS in Drinking Water

Posted by Anthony DeLoach, President on May 4, 2022 1:05:00 PM

If you’ve been following the news, you know that there’s a growing problem with PFAS (per- and polyfluoroalkyl substances).

 

These man-made chemicals are found in everything from clothing to food packaging. While they are inexpensive and stable in products, some of these substances tend to break down into other substances, such as PFAS-methyl tetrahydrofuran. PFASs have been discovered in drinking water across the country, including in parts of the country with very high water tables. As a result, it’s important to learn how to remove contaminants from your drinking water. What should you do if you suspect that there’s a problem with your water? Check the source of the water, test it, and treat it if necessary.

Follow these steps to remove contaminants from your drinking water.

Test Your Water

Although it’s important to know how to remove contaminants in general, it’s even more important to know how to test your water for contamination. A water test kit can help you determine whether there are contaminants in your water and whether they are at a dangerous level. You can purchase water test kits at most grocery stores, hardware stores, and online retailers. Generally, these kits come with the standard set of tests for a home water filtration system, but they also often include tests for certain contaminants. Use these tests to determine whether your water is safe to drink or not. If your water contains contaminants, you need to remove them from your water source. This can be done by digging a deeper well, installing a water filtration system, or getting a water purification system. If your water does not contain contaminants, you don’t need to do anything except continue drinking your water.

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Topics: water treatment issues, water quality, odor control, water treatment, advanced treatment solutions, Chemical Odor, Safe drinking water, RO system, filters, Filter Media, residential well water systems, DeLoach Industries, Inc., backwash, Carbon Filter, Micron Filter, Drinking Water, Clean Water, Contaminated Water, Water Source, Sediment Filter, PFA's, Water Test, Water Test Kit

Pressure Filters

Posted by Matthew C. Mossman P.E. on Dec 3, 2021 1:00:00 PM

In water treatment, it is often required to remove small particulate matter from the raw water. One of the most cost-effective ways to accomplish this is with a pressure filter. Sometimes referred to as “sand filters,” a pressure filter consists of a rigid filter vessel capable of withstanding internal pressure, combined with pipework to distribute and collect water and one or multiple types of filter media. Pressure filters, commonly used in municipal water systems, industrial facilities, residential well water systems, and swimming pools. Typical pressure filter construction is shown below:

At the top of the filter vessel, a distributor is used to break up and distribute the water flow so that there are no concentrated flow jets that stir up the media bed. Inflow distributors are usually oriented to direct flow at the top of the vessel to disperse the flow further. Below the distributor is the primary filter bed. The filter bed contains fine-grained media, most often sand, including crushed anthracite coal, activated charcoal, garnet, or other granular bulk products. The media bed is the thickest layer in the filter vessel and is the region that does the actual filtering of the water or other fluid. Below the media bed will be one or more support layers. These will usually be larger-sized gravel that is chosen to support the filter bed while allowing high flow through the support layer and into the outflow header. The outflow header can take several forms but is often composed of a large central pipe with multiple smaller pipes or “laterals” attached. The laterals are slotted or perforated. This allows the pressurized water to flow into the laterals and out through the outflow header into the downstream components of the water treatment system.

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Topics: particulate matter, filters, Pressure filter, Sand filters, Filter Media, municipal water systems, industrial facilities, residential well water systems, greensand, DeLoach Industries, Inc., backwash, automated control systems, actuated valves, pump controls

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