... black powder. According to the needs, PAM commonly knows as flocculants, cation, anionic, nonionic with mixer ionic composing four type ... filtering, then the APAM can be used as the flocculant. Its dosage is 2%-5% of that of the ... in the long fiber paper-making, and also the flocculant for the waste water from the paper-making.Package25Kg Packed ... or on the request of customers High viscosity anionic PAM