ECOFEROX

Purpose

A filter material intended for precipitating filtration, catalytic water treatment in industrial iron removal and waste water treatment.

Description

The new generation auto-catalytic silica-alumina sorbent developed based on the natural mineral raw material of the deposits of Sverdlovsk region - the opal-cristobalite rock related to the natural zeolite tuffs with the primary substance content of 85-95%. It was developed and is applied for purifying any type of water of a large spectrum of impurities, including iron in concentrations up to 50 mg/l. ECOFEROX is chemically stable to such common oxidizers as sodium hypochlorite, manganese solutions, coagulants, ozone, etc.

ECOFEROX acts as an oxidation catalyst in interaction reactions of dissolved oxygen with Fe²⁺ and compounds resulting in the formation of iron hydroxide Fe³⁺, which is an insoluble compound easily removable by the back water flow. As water passes through the filter material, an iron hydroxide coat is formed on its granules, thus additionally increasing its sorption properties. ECOFEROX transforms them into particulate pollutants which are easily retained by the filter bed.

Equivalents

The equivalents of filter media are the sorbent AS, ODM-2F.

Specifications

• Bulk weight 0,6 – 0,7 g/cm³
• Abradability 0,06 %
• Grindability 0,04 %
• Conditional mechanical strength 0,79 %
• Intergranular porosity 49 ± 3 %
• Granule shape factor 1,65 - 1,71
• Fraction 0,3 - 0,7 / 0,7 - 1,5 mm
• Package 20 l
• Bed height 0.4 - 1 m (max. 70% of the tank volume)
• Filtering rate 8 - 20 m/h
• Washing rate with 15-30% expansion 25 - 37 m/h
• Back washing duration 8 - 10 min
• Total capacity of iron and suspended material 1.1 g/l

The requirements for raw water

* if pH > 8.5, Fe²⁺ removal is difficult

Recommendations for use

The medium is recommended both for pressure and gravity systems as a main or an element of the mixed bed. It is particularly efficient in mixed bed filters with catalytic-treated media such as SUPERFEROX, МSFerox, Ferolox, MZhF, etc.

For the efficient Fe²⁺ of oxidation of more than 3 mg/l the pre-treatment stage is recommended based on the composition of the untreated water (to be selected by engineers).

Upon loading the filter, back washing should be performed.

Service life of the media is 7 years and more.

Commissioning and operation

Upon loading the filter, back washing should be performed.

The formula for approximate calculation of the filtration cycle:

V = (0.8 * VEF) / (2 * СMn + СFe) * 1000

V - filtration cycle, m3

VEF - the volume of Super Ferox, l

СFe - iron concentration in untreated water, mg/l

СMn -manganese concentration in untreated 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

Ecoferox is packaged in convenient 20 l bags 10 - 13 kg, 60 bags per pallet