Question & Answer (Q & A)
1-General Q & A
2-Filtration, Softener and Reverse Osmosis Q & A
The process of passing water through a porous substance to remove solids or other impurities from water. There are several types of filtration, and each of them has responsible to remove certain impurities. It is available as media beds in tanks or as cartridge type devices. A proper filtration system can remove almost all impurities from water.
Regarding the appropriate water softener size for your home, multiply the number of people in your home by the gallons of water they use each day. Multiply that number by the grains of hardness in your water to figure out how many grains need to be removed each day. Then, shop for a water softener equipped to handle the load.
It is a water treatment medium, found in block, granulated, or powdered form. it is produced by heating carbonaceous materials, such as coal, wood, or coconut shells, in the absence of air which creating a highly porous adsorbent material. Activated carbon is commonly used for dechlorination, organic chemical reduction, removing bad smell or color from water. It is recognized by the US EPA as the best available technology for reduction of organic chemicals from drinking water.
The chart below summarizes the types of particles that are removed from the water with each type of membrane filter. The green arrow indicates that the particle is small enough to pass through the filter, whereas the deflected orange arrow indicates that the filter blocks the particle from passing through the filter. As you can see from the following figure, the best quality of water (purest) is obtained when reverse osmosis is applied.
Cross flow filtration is when the flow is applied across the membrane surface. As feed flows across the membrane surface, pure water passes through while concentrate accumulates at the opposite end of the membrane. The cross flow of the membrane creates a shearing effect on the surface of the membrane, which in turn reduces scaling or fouling. it is opposite of traditional filtration (dead-end technique). In simple words, quality reverse osmosis systems use a process known as crossflow filtration to allow the membrane to continually clean itself.
Each of water purifiers are made based on special application. Water softener is generally used to remove calcium and magnesium (hardness) from water to produce soft water.
Water filters are mostly applied to remove sediment, organic materials, bad smell and taste and also chlorine from water.
The ideal location for a water softener is near the water’s point of entry into the house. If your home uses well water, the entry point is generally next to the pressure tank. If your home uses city water, it’s usually next to the water meter. if you prefer not to consume softened water, a separate cold line can be installed for drinking and cooking purposes.
