In order to discharge or reuse the Sewage after Treatment, a variety of Chemicals need to be used in the Sewage Treatment process. Today, PAM (Polyacrylamide) suppliers will tell you about flocculants:
Flocculant: Sometimes also called coagulant, it can be used as a means to strengthen solid-liquid separation, and it can be used in primary settling tank, secondary settling tank, flotation tank, tertiary treatment or advanced treatment and other process links.
Flocculants are used as a means of strengthening solid-liquid separation in the field of sewage treatment. They can be used to strengthen the primary sedimentation of sewage, flotation treatment and secondary sedimentation after activated sludge process, and can also be used for tertiary treatment or advanced treatment of sewage. When used for conditioning before dehydration of excess sludge, flocculants and coagulants become sludge conditioners or dehydrating agents.
When using traditional flocculants, the method of adding coagulant aids can be used to enhance the flocculation effect. For example, using activated silicic acid as a coagulant aid for inorganic flocculants such as ferrous sulfate and aluminum sulfate and adding them in sequence can achieve good flocculation. Therefore, in layman’s terms, the inorganic polymer flocculant IPF is actually prepared by combining the coagulant aid and the flocculant and then added together to simplify the user’s operation.
Coagulation treatment is usually placed in front of the solid-liquid separation facility, and combined with the separation facility, it can effectively remove suspended solids and colloidal substances with a particle size of 1nm to 100μm in the raw water, reduce effluent turbidity and CODCr, and can be used in the pretreatment of sewage treatment processes. Treatment, advanced treatment, can also be used for residual sludge treatment. Coagulation treatment can also effectively remove microorganisms and pathogenic bacteria in water, and remove emulsified oil, chroma, heavy metal ions and other pollutants in sewage. The removal rate of phosphorus contained in sewage can be as high as 90% when coagulation sedimentation is used to treat phosphorus. ~95%, is the cheapest and most efficient method of phosphorus removal.
In the process of sewage treatment, other agents will be used. Today, the PAM Manufacturer introduced only one of them. Do you still understand? Pay attention to Yuncang and answer more sewage treatment knowledge for you!
Post time: Dec-01-2022