Greensand Filters & applications

Greensand filters are used in an entire range of water treatment applications to remove iron, manganese and hydrogen sulfide from the water. The filter is also used in industrial or commercial water treatment applications to remove radium, radioactive substances, arsenic, and radium.

High-quality Chemical Treatment water Filtration

In large flows such as with industrial water filtration, it is typically accomplished with chlorine and / or potassium permanganate, a strong oxidizer. Because the oxidation reaction required to convert the soluble material into solid particles, followed by successful filtration must be accomplished in 1-2 minutes of filter residence time, the water chemistry must be conducive to rapid reaction kinetics. Technical literature typically recommends pH in the 6.2 to 6.5 range. Our experience with waters in the SE US demonstrates pH 6.8 to be optimal. Alkalinity must be ≥ 120 ppm. These parameters can be adjusted by metering a dilute caustic and / or a soda ash solution into the water upstream of the filter to adjust pH and alkalinity, respectively. For iron alone, chlorine fed at a concentration of 1.0 to 1.2 times the iron should be adequate to oxidize the iron and “regenerate” the manganese greensand. Since excess chlorine is not deleterious to greensand filtration, it is possible to feed enough to provide adequate free chlorine residual in the filtered water sufficient for introducing into the clear well and pumping to service.

Greensand Media
Helps to Remove Iron by using

Help in Various Sectors

  • Industrial Water Treatment
  • Commercial Water Treatment
  • Pharmaceutical Water Treatment
  • Municipal Water Problems Solution

Catalytic Oxidation (CO):  At the same time in the water industry, we also refer to this as continuous operation. Before the Greensand filter, the catalytic oxidation operation involves feeding a strong oxidant directly into the raw water before feeding it to the raw water. It is Chlorine (Cl2) that uses the most common oxidant.

Helps to Remove Iron by using

Greensand Filters

Intermittent Regeneration (IR):In this manner, the greensand catalytic function occurs on the surface of the Greensand media. Once the greensand media has reached capacity it’s going to not be capable of take away dissolved iron. It’ll have turn out to be exhausted and require regeneration. This regeneration method is similar to that of a water softener. The largest distinction is the regenerate chemical this is used. The most common chemical used to regenerate Greensand media is potassium permanganate.

Something about

Greensand Plus...

The Greensand Plus is used to remove and filter manganese, soluble iron, hydrogen sulfide, radium from water. It is also used to remove and filter manganese, soluble iron, hydrogen sulfide, arsenic, and radium from water products. When the Greensand Plus media is coated with manganese dioxide, this coating provides the catalyst in the oxidation reaction of iron and manganese. This coating provides the catalyst in the oxidation reaction of iron and manganese.

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