VIP member
Cationic polyacrylamide
Cationic polyacrylamide (CPAM) is a linear polymer compound that, due to its various active functional groups, can form hydrogen bonds by affinity and
Product details
Product Introduction
Cationic polyacrylamide (CPAM) is a linear polymer compound that, due to its various active functional groups, can form hydrogen bonds by affinity and adsorption with many substances. Mainly used for flocculation of negatively charged colloids, it has functions such as turbidity removal, decolorization, adsorption, and adhesion. It is suitable for the treatment of wastewater with high organic colloid content in industries such as dyeing, papermaking, food, construction, metallurgy, mineral processing, coal powder, oil fields, aquatic processing, and fermentation. It is particularly suitable for the dewatering treatment of urban sewage, urban sludge, papermaking sludge, and other industrial sludge.
Characteristics of cationic polyacrylamide
1. Good water solubility and can completely dissolve in cold water.
2. Adding a small amount of cationic polyacrylamide product can achieve great flocculation effect. Generally, only 0.01-10ppm (0.01-10g/m3) needs to be added to fully exert its effect. 3. Simultaneously using cationic polyacrylamide products and inorganic coagulants (such as polymeric ferric sulfate, polymeric aluminum chloride, iron salts, etc.) can demonstrate greater effectiveness.
Guidelines for the Use of Cationic Polyacrylamide
It can fully meet the requirements in waste liquid treatment, sludge concentration and dewatering, mineral processing, coal washing, papermaking and other aspects.
1) Polyacrylamide is an organic polymer compound that can be divided into anionic polyacrylamide, cationic polyacrylamide, and nonionic polyacrylamide. It is a white powder or particle that is soluble in water but has a slow dissolution rate;
2) Anionic polyacrylamide is generally used as a flocculant for wastewater treatment, while cationic polyacrylamide is generally used for sludge dewatering;
3) When used as a flocculant, the dosage is generally 1-2ppm, which means that the dosage for treating 1 ton of wastewater is about 1-2g;
4) When used, anionic type is generally prepared as an aqueous solution of about 0.1%, while cationic type can be prepared as 0.1% -0.5%;
5) When preparing the solution, water should be added to the dissolution tank first, then the mixer should be turned on, and PAM should be slowly added along the vortex. PAM cannot be quickly added at once, otherwise it will clump and form "fish eyes" that cannot be dissolved;
6) After adding PAM, it is generally necessary to continue stirring for more than 30 minutes to ensure its complete dissolution;
7) Dissolved PAM should be used as soon as possible. Anionic PAM should generally not exceed 36 hours, while cationic PAM is easily hydrolyzed after dissolution and should be used within 24 hours.
Precautions for using cationic polyacrylamide:
1. Size of flocs: Too small flocs can affect the speed of drainage, while too large flocs can restrict more water and reduce the moisture content of the mud cake. By selecting the molecular weight of polyacrylamide, the size of flocs can be adjusted.
2. Characteristics of sludge. ******Understand the source, characteristics, composition, and proportion of sludge. According to their different properties, sludge can be divided into two types: organic and inorganic sludge. Cationic polyacrylamide is used to dispose of organic sludge, while anionic polyacrylamide flocculants are used for inorganic sludge. Cationic polyacrylamide is used when the alkalinity is strong, while anionic polyacrylamide is not suitable when the acidity is strong. When the solid content is high, the amount of polyacrylamide used in sludge is usually large.
3. Floc strength: flocs should remain stable and not break under shear action. Improving the molecular weight of polyacrylamide or selecting appropriate molecular structures can help improve floc stability.
4. Ionic strength of polyacrylamide: For dehydrated sludge, coagulants with different ionic strengths can be selected through small-scale testing to select the best and suitable polyacrylamide. This can achieve better flocculant effect, reduce dosage, and save costs.
5. Polyacrylamide dissolution: Only when dissolved well can it fully exert its flocculation effect. Sometimes it is necessary to accelerate the dissolution rate, and at this time, it is advisable to consider increasing the concentration of polyacrylamide solution.
This product is non-toxic. Please pay attention to moisture and rain prevention, and avoid direct sunlight exposure. Storage period: 2 years, 25kg paper bag (lined with plastic bag and covered with plastic coated kraft paper bag).
Online inquiry
-
Contacts
-
Company
-
Telephone
-
Email
-
WeChat
-
Verification Code
-
Message Content
-