What Is a Flocculant?

What is a flocculant?

In raw water and sewage, there are often different amounts of various colloidal particles, such as clay minerals, silica or fine dust produced in industrial production, which can suspend in water, scatter natural light, and cause the water to be turbid. In raw water and sewage, there are often some artificial or naturally formed organic or inorganic compounds that can dissolve in water, absorb different degrees of natural light, and cause the water to have a certain degree of color. impurities form colloidal particles in a sol state with water, and due to electrostatic repulsion and Brownian motion, they show stability in aggregation and sedimentation, and often cannot be by the method of natural sedimentation by gravity.To remove these soluble organic substances or insoluble colloidal particles from water, it is generally necessary to add certain chemicals Under the action of these chemicals, these substances can gather into larger particles, which can be removed by filtration or natural sedimentation. This process is called flocculation in water; and the chemicals added are called flocculants.According to the general practice of the water treatment industry in our country, when talking about natural or synthetic organic macrom coagulants, they are generally called "flocculants".Flocculation, as one of the important water treatment methods, has been widely used in the treatment of various different water bodies and treatment industries. And flocculants, as low-cost and effective water treatment agents, are vigorously applied and promoted.At present there are more than two or three hundred kinds of flocculants used in water treatment, and there are many ways to classify them. A common classification is based on their chemical, which can be divided into inorganic flocculants and organic flocculants.