ã€China Aluminum Network】Polyferric sulfate is a new type of high-efficiency inorganic polymer flocculant that can be widely used in the purification of domestic water, drinking water, municipal wastewater, industrial water, and wastewater.
The flocculation mechanism of polyferric sulfate mainly uses the polynuclear complexes produced in the hydrolysis process to strongly adsorb the sol in the wastewater, promote flocculation through aggregation, bridging, cross-linking, etc. to promote flocculation and reduce the turbidity of wastewater. Color, remove a variety of macromolecules, organic matter, certain heavy metal poisons (mercury, cadmium, lead) and radioactive substances, but also remove phosphorus, sulfur and so on.
The effect of the use of polyferric sulfate depends on factors such as the dosage of the pharmaceutical agent, stirring conditions, pH, temperature, and surface area concentration of the colloidal particles.
The effect of pH on the ability of polyferric processing wastewater:
When the pH value of the polyferric solution is low, iron ions exist as hydrated iron complex ions. When added to the wastewater, if the pH value increases, complex hydrolysis reactions will occur with these hydrated complex ions, resulting in the formation of various hydroxy-iron ions, which will eventually result in the precipitation of ferric hydroxide chemical precipitates. Due to the precipitation arrest mechanism, the flocculation effect is getting better and better. If the pH is too low, the complex hydrolysis reaction is difficult and the flocculation effect is poor.