ASTRADA has its state of art, innovative and Engineered MULTIMEDIA Filtration solution for every water conditioning requirement, no matter in which corner of the planet. ASTRADA Engineers study the water quality and advice / provide the most effective, feasible and economic solution to its customers. ASTRADA Multimedia Filtration vessels go through a stringent Quality check to make sure it serves its purpose for its customers giving them greatest Customer Satisfaction. At ASTRADA we always make sure we are using the latest innovation in MULTIMEDIA Filtration, to make this sure ASTRADA Engineers are always well informed about the various Media used throughout the world for specific Filtration purpose. ASTRADA uses the best and the most effective Media which is chosen, proven and widely used in most part of the globe.

 

WATER SOFTENING:

When water is referred to as 'hard' this simply means, that it contains more minerals than ordinary water. These are especially the minerals calcium and magnesium. The degree of hardness of the water increases, when more calcium and magnesium dissolves.
Magnesium and calcium are positively charged ions. Because of their presence, other positively charged ions will dissolve less easily in hard water than in water that does not contain calcium and magnesium.This is the cause of the fact that soap doesn't really dissolve in hard water. In many industrial applications, such as the drinking water preparation, in breweries and in sodas, but also for cooling- and boiler feed water the hardness of the water is very important.When water contains a significant amount of calcium and magnesium, it is called hard water. Hard water is known to clog pipes and to complicate soap and detergent dissolving in water.

ASTRADA Multimedia media filtration systems are Engineered and Tested to provide solutions to its customers to deal with the hardness of water, no matter which corner of the world the issue is.

 

IRON REMOVAL:

The red-brown staining of bathroom fixtures and laundry is generally treated as an iron problem. Iron generally occurs in its ferrous state in It also affects the taste of food and beverages if left in during the production process. Water should be tested to determine the amount and type of iron you have (oxidized, soluble, colloidal, bacteria, or organic-bound, see below) to then ensure the correct method of iron removal is used.well water.

ASTRADA has an extensive and comprehensive range of Iron Removal products for use across a variety of applications. Iron is a natural substance typically found in water. Filtration plants are used when a relatively high concentration of inorganic iron is present. They are similar in appearance and size to water softeners but contain beds of media that have oxidizing capabilities.

 

Oxidized:
This type of iron is usually found in a surface water supply. This is water that contains red particles when first drawn from the tap. The easiest way to remove this type of iron is by a fine mechanical filter. A cartridge-type filter is usually not a good solution due to the rapid plugging of the element. Another method of removal is by dosing a chemical into the water to cause the small particles of iron to clump together. It will then fall to the bottom of a holding tank where it can be removed by means of a pump or flushing to drain etc.

 

Soluble:
Soluble iron is called “clear water” iron. After being drawn from its source and making contact with the air, the iron oxidizes (rusts), forming reddish brown particles in the water. Depending on the amount of iron in the water, there are several ways of dealing this problem, one possible action is a combination of base-exchange, softening and filtration. Another possible solution is an iron removal system that regenerates with chlorine or potassium permanganate. You can also feed chemicals to oxidize the iron, followed by filtering it with a mechanical filter. You can sometimes hide the effects of soluble iron by adding chemicals that, in effect, coat the iron in the water and prevent it from reaching oxygen and oxidizing.

 

Colloidal:
Colloidal iron is very small particles of oxidized iron suspended in the water. They are usually bound together with other substances. They resist clustering together due to the static electrical charge they carry. Because these particles are so small, when looked at in a clear glass this iron looks more like a color, rather than particles. There are two popular treatments for colloidal iron: feed chlorine to oxidize the organic away from the iron. This will allow clustering to occur. Another way is to feed polymers that attract the static charge on the particles, forming larger clumps of matter that is filterable.

 

Bacterial:
Iron bacteria are living organisms that feed on the iron found in the water, pipes, fittings, etc. They may create a heavy bacterial film along the water flow path. Occasionally, these slimy growths may break free, causing extremely discolored water. In severe cases it can pass to the point of use, even blocking fixtures or fittings. Initial signs of bacteria iron can cause a reddish or green film to build up in tanks etc. This type of iron problem can be hard to eliminate. Normally these types of bacteria are removed by cleaning/ sanitizing, usually by chlorination. It may be necessary to dose with chlorine continuously to prevent re-growth. Filtration alone is not an effective way to solve this problem.

 

Organic Bound:
When iron combines with other organics, complex compounds are formed that cannot be removed by ion exchange or oxidizing filters. This iron is often mistaken for colloidal iron. In these cases tests to identify the organics etc should be carried out. If they are present, it is most likely combined with the iron. Low-level amounts can be removed by using carbon filtration. This absorbs the complex compounds. Regular replacement of the carbon bed is essential when it becomes totally saturated. Higher amounts may well require dosing with chlorine. This will oxidize the organics causing them to break apart from the iron allowing both to precipitate out into filterable particles.

 

PH and its effects on iron:
The pH (potential Hydrogen) of a water source plays a very important role in understanding the way that the iron can convert from a ferrous (dissolved) state to a ferric (un-dissolved) state. The higher the pH level, the faster iron can convert.

 

Care must be taken when considering iron removal advice from different regions of the country as water temperature, pH, alkalinity, dissolved oxygen content and other factors will affect the actual results. Most application failures are caused simply by not selecting the right equipment for the water conditions present. It is important to follow manufacturer's guidelines regarding flow rates, backwash rates, pH levels, maximum iron input levels, water temperatures and any other applicable limitations that the manufacturer has noted in order for the equipment and media to deliver their best result as designed.

                                                                                             ASTALON ECO ENGINEERS

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