The method and principle of sodium silicate solution removal sodium silicate

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For various types of pollutants, we can adopt different approaches of elimination approaches. Right here are several usual approaches and concepts of salt silicate option.

Precipitation method

The precipitation technique is a technique that makes use of contaminations ions to respond with specific chemical reagents to generate challenging rainfall so as to remove it from the salt silicate option. For example, for metal ions such as iron ions and aluminum ions, alkaline reagents such as salt hydroxide or potassium hydroxide can be contributed to form it. The response formula is as complies with:

Fe ⁻ + 3oh f → Fe (OH) ↓

Al ⁻ + 3oh a → Al (oh) ↓

For calcium and magnesium ions, carbonate reagents such as sodium carbonate or potassium carbonate can be included in develop carbonate precipitation. The response equation is as follows:

CA ₃ ² ⁻ + Carbon monoxide c → CACO ₃ ↓

Mg ₃ ² ⁻ + Co m → mgco ₃ ↓

The rainfall approach is simple and the expense is reduced, but you need to take note of the amount and response conditions of the debris to ensure that the contaminations ions can be totally precipitated.

Ion exchange method

The ion exchange technique is to selectively adsorb and exchange the ions in the service with an ion exchange resin to eliminate the method of impurities ions. Ion exchange resin is a polymer product with an ion exchange feature. It can trade responses with the ion in the remedy, soak up pollutants ions to the material, and keep the helpful ions in sodium ions in salt silicate option in the solution.

The ion exchanges are excellent and can remove a variety of pollutants ions, but the rate of ion exchange resin is greater, and regeneration is needed routinely.

Membrane splitting up

The membrane layer separation approach makes use of the semi-diaphragm to precisely travel through the different elements in the solution so as to accomplish the method of separation and elimination. Depending upon the diameter dimension and separation concept of the membrane, the membrane splitting up technique can be split right into numerous kinds, such as microfiltration, ultrafiltration, filtration and turn around osmosis.

For contaminations such as insoluble strong granules and macromolecular raw material in salt silicate solution, mini fillets or ultrafiltration membranes can be made use of for getting rid of; impurities ions of some tiny molecules can be eliminated with the filtration or reverse osmosis membrane layer. The membrane separation method has the advantages of simple operation, high separation efficiency, and low energy usage.

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