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The working principle and characteristics of sponge iron filter material.

The working principle of sponge iron filter material.

Sponge iron filter material has the advantages of low investment, simple maintenance, low cost of transportation, oxygen advantages with good effect, can be widely used in boilers and circulating water equipment, is a kind of high performance and energy saving products.

Sponge iron liao deaeration principle: the sponge iron with huge specific surface area as the filter material, when water containing dissolved oxygen through the sponge iron, oxygen radical oxidation reaction with sponge iron.
Its chemical reaction is as follows:

Fe 2 + 2 h2o + O2-2 fe (OH) 2
2 fe (OH) 2 + 2 H2O + o2-2 fe (OH) 3

After the reaction, Fe(OH)3 is a soft flocculent that is insoluble in water. When it accumulates to a certain extent, it can be discharged through the backwash and restored to the initial deoxygenation capacity.

Working environment of sponge iron filter material:

Treatment amount: 4-50t/h;
Backwash strength: 16-21l /m2;
Backwash interval: 24h.
Working temperature: 5-80 ℃
Oxygen removal rate: 15-18m/h;
Working pressure: 0.15-0.5mpa.
Pre-treatment dissolved oxygen content: 6-8mg/L;
Dissolved oxygen content after treatment: 0.03-0.05mg/L.

Application range of sponge iron filter: various kinds of boilers, heat exchangers, heat pipes, industrial circulation cooling water and oil fields.

Characteristics of sponge iron filter material:

1. With the help of a long, non-toxic and non-polluting environment, the oxygen content of the outlet is stable under 0.05mg/L, which is in line with the requirements of the national low pressure boiler water quality standard (gb1576-2001).
2. Normal temperature running, without heating, operating cost is low, and overcome the disadvantages of heat removal and energy dissipation.
3. The dosage is low, and in general, the amount of deoxidizer is 1 ton of water is 10g.
4. Low anti-washing frequency and good regeneration effect.


 The working principle and characteristics of sponge iron filter material.