FEROLOX

High efficiency filter material

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Medium volume, liters	Medium quantity, bags

Purpose

The mixture of natural materials based on manganese dioxide; it is used for the efficient reduction of high iron, hydrogen sulphide and manganese concentrations.

Description

The media action is based on the following principle: hydrogen sulphide, iron and manganese are transformed into non- soluble forms and are caught by the media with the subsequent removal during backwashing by the untreated or treated water.

Advantages

Efficient removal of hydrogen sulphide, iron and manganese
Material strength, long service life and low wear percentage
Requires no additional chemical products for regeneration except for periodic backwashing.

Analogs

It is a close equivalent of Pyrolox media but with lower density (20% lighter)

Specifications

Color Dark grey
Effective size 0.7 – 1.5 mm
Pour density 1.5 g/cm³
Working range of PH 6.5 - 9
Filtering rate, m/h 10 - 15
Back washing rate, m/h 40 - 55

The requirements for untreated water

pH range	pH 6.5 – 9*
Temperature	From 5°С to 35°С
Oxygen	more than 6 mg/l
Total iron	15 mg/l
Total manganese	5 mg/l
Clay, loam	none
Hydrogen sulphide	Significantly reduces the level of hydrogen sulfide
Sulphides (by H2S)	less than 0.2 mg/l
Free chlorine concentration	-
Carbon oxide CO	none
Oil products	none
Colloidal silicic acid	none

* if pH > 8.5, Fe²⁺ removal is difficult

Recommendations for use

The optimal practical application is mixing with Ecoferox in a proportion corresponding to the water composition at the inlet.

Proportions for mixing Ecoferox/Ferolox:

Proportion	70/30	50/50	30/70
Back washing rate, m/h	43	46	50

Service life of the medium is up to 5 years.

Commissioning and operation

Due to the heavy weight of the material, the intensive washing of filters with Ferolоx media is important. Complying with the bed expansion condition during back washing will ensure high performance of the material throughout its service life.

The first washing Ferolоx is performed until the complete washing of the media. Visually, the washing water should be the same as the untreated water. The approximate washing time is 5 – 15 minutes.

The formula for approximate calculation of the filtration cycle:

V = VFF / (2 * СMn + СFe) * 1000

V - filtration cycle, m3

VFF - Ferolox volume, l

СFe - iron concentration in untreated water, mg/l

СMn -manganese concentration in raw water, mg/l

*The formula provides an approximate indication of the actual filtration cycle. The most optimal is the experimental selection of the period between regenerations and washing time, which enables using the water treatment system at minimal consumption of regenerate and washing water.

Washing is required at least once every 7 days.

Package

Ferolox is packaged in convenient 5 l bags ± 8 kg, 100 bags per pallet.

Specifications

Color Dark grey
Bulk density 1.5 g/cm³
Working range of PH 6.5 - 9
Maximum content of iron (Fe) and manganese (Mn) in raw water, mg/l Fe up to 50*
Mn up to 3*
*with aeration and reagent treatment
Filtering rate, m/h 10 - 15
Back washing rate, m/h 40 - 55