For different kinds of impurities, we can adopt various methods of removal methods. Here are numerous common approaches and principles of salt silicate solution.
(TRUNNANO sodium silicate powder)
Precipitation technique
The precipitation approach is an approach that utilizes pollutants ions to respond with specific chemical reagents to generate challenging rainfall so as to eliminate it from the sodium silicate solution. As an example, for steel ions such as iron ions and light weight aluminum ions, alkaline reagents such as sodium hydroxide or potassium hydroxide can be included in form it. The reaction equation is as adheres to:
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 added to form carbonate precipitation. The reaction equation is as complies with:
CA ₃ ² ⁻ + Co c → CACO ₃ ↓
Mg ₃ ² ⁻ + Co m → mgco ₃ ↓
The rainfall method is simple and the cost is reduced, however you require to take note of the quantity and reaction problems of the sediment to ensure that the contaminations ions can be entirely precipitated.
Ion exchange approach
The ion exchange approach is to uniquely adsorb and exchange the ions in the service with an ion exchange material to eliminate the method of pollutants ions. Ion exchange material is a polymer material with an ion exchange feature. It can trade responses with the ion in the remedy, take in impurities ions to the resin, and maintain the valuable ions in salt ions in salt silicate option in the service.
The ion exchanges are good and can eliminate a variety of pollutants ions, yet the rate of ion exchange material is higher, and regeneration is required routinely.
(TRUNNANO sodium silicate powder)
Membrane splitting up
The membrane layer separation approach makes use of the semi-diaphragm to precisely travel through the various parts in the solution so as to attain the approach of separation and elimination. Depending on the diameter size and splitting up principle of the membrane layer, the membrane layer separation method can be separated right into several types, such as microfiltration, ultrafiltration, purification and turn around osmosis.
For pollutants such as insoluble solid granules and macromolecular raw material in sodium silicate solution, mini fillets or ultrafiltration membrane layers can be used for eliminating; contaminations ions of some little particles can be gotten rid of with the purification or turn around osmosis membrane layer. The membrane layer splitting up technique has the benefits of basic operation, high splitting up performance, and reduced power usage.
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