Charge neutralization
Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate will undergo hydrolysis in water to generate a large amount of iron ions and a variety of hydroxyl complexes. These hydrolysis products are positively charged, while the colloidal particles in sewage are usually negatively charged. When Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate is added to sewage, the positively charged substances produced by its hydrolysis will neutralize the negative charges carried by the colloidal particles. As the charges are gradually neutralized, the electrostatic repulsion between the colloidal particles weakens, allowing them to approach each other, thereby destroying the stability of the colloid and creating conditions for subsequent flocculation and precipitation.
Adsorption bridging effect
The hydroxyl complexes formed by the hydrolysis of Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate have a large specific surface area and strong adsorption capacity. These complexes can be adsorbed on the surface of the colloidal particles, connecting multiple colloidal particles together through intermolecular forces to form a bridge-like structure. As more and more colloidal particles are adsorbed and bridged, they gradually aggregate to form larger flocs. This adsorption bridging effect effectively increases the particle size of the colloidal particles, making it easier to precipitate under gravity, and realizes the flocculation and removal of colloids in sewage.
Net-catching and sweeping effect
With the increase of the dosage of Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate, the hydrolysis product will gradually form iron hydroxide precipitates. These iron hydroxide precipitates will capture and sweep together the surrounding colloidal particles and tiny suspended matter like a net during the formation process. The flocculent structure of the iron hydroxide precipitate has a large gap and surface area, which can accommodate and adsorb a large number of impurity particles and make them precipitate to the bottom of the water together. This net-catching and sweeping effect further enhances the removal effect of Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate on colloids and other pollutants in sewage, and improves the efficiency and quality of sewage treatment.
Compressed double layer effect
In sewage, there is a double layer composed of counterions around the colloidal particles. The existence of the double layer keeps a certain distance between the colloidal particles, thereby maintaining the stability of the colloid. The high-valent ions produced by the hydrolysis of Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate can enter the double layer of the colloidal particles, making the thickness of the double layer thinner and the potential lower. This compression of the double layer reduces the stability of the colloidal particles, making them more prone to collision and coagulation, thereby achieving flocculation and precipitation. Through this process, Highly Efficient Sewage Treatment Agent Polymeric Ferric Sulfate can effectively destroy the stability of the colloids in the sewage and achieve the purpose of purifying the sewage.
