CSI greensand plus IF10-S2, Руководство по установке и эксплуатации

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SIGNATURE 2 SERIES
SIGNATURE 2 SERIES
Installation
Greensand Plus Iron Filter is capable of removing dissolved iron, manganese and hydrogen sulfide from water through
oxidation and filtration. The maximum practical limit of iron (Fe) and / manganese (Mn) in raw water is 10 ppm. The
maximum practical limit of hydrogen sulfide (h2S) is 3ppm. Raw water pH should be 6.8 to 8.8.
Manganese treated greensand works as an oxidizing filter to remove the dissolved minerals above. The manganese
oxides convert the soluble ferrous minerals in the water into ferric (or floating particles) minerals. As the ferric hydroxide
forms, it is filtered from the water by the granular material in the tank.
When the oxidizing capacity of the filter media becomes exhausted, regeneration is necessary. First the filter valve
bypasses the raw water to the system to provide uninterrupted service. The valve then reverses the flow of the water
through the filter bed to produce a backwash to the drain. Because of the density of the media bed, it is very important to
size the filter to the pump volume thus insuring adequate supply for backflushing.
The valve then brings in dissolved potassium permanganate from the small feeder tank and rinses it slowly through the
greensand media. The introduction of this oxidizing agent replaces the oxygen lost during normal service and restores the
managanese dioxide coating on the filter material renewing it for further service. A fast rinse then follows to settle the me-
dia and insure that the chemical is rinsed away. The valve then refills the potassium permanganate tank to make solution
for the next time. Service flow is downward through the filter media and up through the distributor tube in the center of the
tank.
It is recommended that the greensand media be vigorously regenerated when new and that it be regenerated before it is
exhaused while it is in service.
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