What are the reasons for limiting the effect of anionic polyacrylamide? Anionic polyacrylamide (APAM), as a flocculant with relatively low price and wide use in the polyacrylamide series, has achieved many technological breakthroughs and advancements, with improved molecular weight and stability, and increased viscosity. The flocculation effect is more remarkable. We can more accurately grasp the reason for limiting the effect of anionic polyacrylamide by changing the flocculation effect of the molecular weight and viscometer of anionic polyacrylamide under different conditions.
Because the use cost of anionic polyacrylamide is relatively high, if the factors are improperly controlled during the use of sewage treatment, the effect will be increased and the application cost will be increased. Therefore, caution should be exercised in the application. Let us look at the use of anionic polyacrylamide. What are the influencing factors of the effect:
1. Temperature: The hydrolysis of anionic flocculant is related to temperature. Generally speaking, the water temperature is 20~30 °C. Whenever the temperature is increased by 10 ° C, the hydrolysis rate is increased by 1 time;
2. PH value: PH value affects the effect of use;
3. Stirring time and speed: the speed is too slow, the time is too short, the flocculant can not contact the solid particles completely, which is not conducive to the capture of the flocculant colloidal particles; the flocculant concentration distribution is not uniform, which is not conducive to the role of the flocculant; Water quality or mud quality: source, nature, composition and solid content;
5. Molecular weight or ionicity of anionic polyacrylamide: dosage and cost;
6. Dissolution time: continuity of use;
7. Type of mud press: belt type, plate frame and centrifugal.
The above points are the reasons for limiting the effect of anionic polyacrylamide, and I hope to help you.
