Water purity issues in developing nations and third-world countries populate the news, but pure drinking water can be just as difficult to achieve in developed countries. In the U.S., significant amounts of tap and well water are not fit for drinking due to heavy industrial and environmental pollution that result in water contamination. Even low-level exposure to some contaminants can cause illness, including liver damage, cancer and other serious ailments.
Keeping Treatment on Track
Combination of treatment methods results in purest drinking water
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In any membrane filtration system, scaling is inevitable. There are many forms of scale, some of the most common being calcium carbonate, calcium sulfate, barium sulfate and strontium sulfate. Left unmanaged, crystal scale will accumulate and become a mass of crystals on the surface of the membrane, causing blockage. This is harmful to reverse osmosis (RO) systems because it increases operating pressure. High pressure can put stress on the system and reduce product output and efficiency levels. A severely scaled membrane easily can reduce its gallon output by more than half.
Dow Water & Process Solutions announces its plans for a new Dow Filmtec reverse osmosis membrane plant at the company’s site in Huzhou, China
The Dow Chemical Co. announced plans to invest in a world-class manufacturing facility for Dow Filmtec reverse osmosis (RO) elements in Huzhou, China. The new facility will be online in 2013.
Vontron’s new line of high-quality reverse osmosis membrane elements includes industrial multi-purpose, seawater desalination, fouling-resistant, oxidation-resistant and residential-type elements. The company is one of the world’s largest manufacturers of high-quality, low-cost, dry-type membranes.
When considering reverse osmosis (RO) for water treatment, there are several things that should be taken into account. One of the most important things to consider is the quality of the water to be treated. RO is widely used to remove harmful inorganic contaminants; however, due to the limitations and higher operating cost, pretreatment of the water may be necessary. For example, hardness minerals are common in groundwater, and at high levels, pretreating with a softener is often recommended.
Environmental World Products focuses on component distribution, sourcing and new product development for commercial and industrial water treatment applications. Its product line includes RO system components, such as membrane housings, filter housings, bag housings, filter cartridges, couplings, control valves, flowmeters, solenoid valves, needle valves, controllers/monitors and pressure gauges.
The Complete RO Screen was developed with input from membrane manufacturers and treatment professionals. This package tests for most factors that can reduce the life of an RO membrane. Due to the nature of RO produced water, the testing was designed to provide lower detection levels. This test package is also beneficial for other applications that require pure water. New and improved compact packaging will reduce shipping costs.