Trihalomethanes (THM) are a group of four chemicals that are formed along with other disinfection byproducts when chlorine or other disinfectants used to control microbial contaminants in drinking water react with naturally occurring organic and inorganic matter in water. Trihalomethanes are chloroform, bromodichloromethane, dibromochloromethane, and bromoform. The maximum contaminant limit (MCL) for TTHM as per...Continue Reading
Arsenic is a naturally occurring compound found in the earth’s crust and is emitted to the environment because of volcanic activity and industrial activities. Current and historical uses of arsenic include pharmaceuticals, wood preservatives, agricultural chemicals, and applications in the mining, metallurgical, glassmaking, and semiconductor industries. Elemental arsenic is used in the manufacture of alloys,...Continue Reading
Perfluorinated alkylated substances (PFAS), are man-made chemicals containing carbon atoms with fluorine substituents. PFAS are noted to be highly stable due to fluorine-carbon bonds as well as being hydrophobic and lipophobic. These characteristics have made them useful in manufacturing polymers and surfactants, as well as a wide range of consumer products. Some products produced using...Continue Reading
The high costs of bottled water and possible health risks due to harmful chemicals such as BPA (Bisphenol A) present in plastics, and many unfavorable environmental hazards, have facilitated to the popularity of point-of-use (POU) and point-of-entry (POE) water filtration systems. POU systems are installed at a single water connection such as kitchen sink faucet...Continue Reading
Ultraviolet (UV) light treatment process involves inactivation of drinking water pathogens or the oxidation of micropollutants. During the oxidation process, it is commonly used in combination with hydrogen peroxide as a part of an advanced oxidation process. UV disinfection or oxidation is a physical process that utilizes UV light and does not require use of...Continue Reading
Hardness of water is defined as the amount of dissolved calcium and magnesium in the water. Hard water is a type of water with high hardness that contains very high amounts of calcium and magnesium. Groundwater typically has higher hardness as compared to surface water sources mainly because as water moves through soil and rock,...Continue Reading
The need for home water filtration system has tremendously increased in the last few decades, owing to limited availability of clean and fresh water sources. Additionally, the development of advanced treatment technologies in the water filtration system has given impetus to the emerging water purification system. In a country like UAE, a number of factors...Continue Reading
Ion Exchange (IX) is a reversible chemical water treatment process for selective removal of charged inorganic species from water using an ion-specific resin and replacing them with other similarly charged ions. As water containing undesired ions passes through a column of resin media, charged ions on the resin surface are exchanged with the undesired ions...Continue Reading
An in-line water filter is a type of a Point-of-Use (POU) filter such as a water filter system for use in refrigerators having water dispenser and/or icemaker features. In-line water filters are either installed with the main water supply that serves cold water in the kitchen faucet or are installed on the feed line to...Continue Reading
Backwashing a drinking water system filter means reversing and increasing the water’s flow to flush out accumulated debris and particles. Backwashing is not only vital to the life of a filter but also is essential to maintain the quality of water coming out of the filter. Depending upon the incoming water quality, age and type...Continue Reading
