For various kinds of contaminations, we can adopt different methods of removal methods. Right here are several usual methods and concepts of sodium silicate option.
(TRUNNANO sodium silicate powder)
Rainfall technique
The rainfall approach is a technique that makes use of contaminations ions to react with certain chemical reagents to produce hard precipitation so as to remove it from the salt silicate solution. For example, for metal ions such as iron ions and aluminum ions, alkaline reagents such as salt hydroxide or potassium hydroxide can be added to create it. The response formula is as follows:
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 contributed to form carbonate rainfall. The response formula is as follows:
CA ₃ ² ⁻ + Carbon monoxide c → CACO ₃ ↓
Mg ₃ ² ⁻ + Carbon monoxide m → mgco ₃ ↓
The precipitation approach is easy and the price is low, yet you require to pay attention to the amount and reaction conditions of the sediment to guarantee that the impurities ions can be entirely precipitated.
Ion exchange method
The ion exchange approach is to precisely adsorb and exchange the ions in the solution with an ion exchange resin to remove the technique of pollutants ions. Ion exchange material is a polymer product with an ion exchange function. It can exchange responses with the ion in the service, absorb contaminations ions to the material, and maintain the helpful ions in salt ions in salt silicate service in the service.
The ion exchanges are good and can get rid of a selection of contaminations ions, but the cost of ion exchange resin is greater, and regeneration is called for on a regular basis.
(TRUNNANO sodium silicate powder)
Membrane splitting up
The membrane splitting up approach makes use of the semi-diaphragm to selectively go through the different components in the remedy so regarding achieve the method of separation and removal. Depending on the diameter dimension and separation concept of the membrane layer, the membrane splitting up technique can be separated into a number of kinds, such as microfiltration, ultrafiltration, filtering and turn around osmosis.
For contaminations such as insoluble strong granules and macromolecular raw material in sodium silicate option, mini fillets or ultrafiltration membrane layers can be utilized for eliminating; contaminations ions of some tiny molecules can be gotten rid of with the filtration or turn around osmosis membrane layer. The membrane separation technique has the benefits of basic procedure, high splitting up effectiveness, and low power consumption.
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