Mud treatment agents outside view are white particles or powder, so from the appearance is not to see which kind of mud treatment agent is. Therefore, we must judge from the following methods.
1. Judging from the dissolution time
Different types of mud treatment agents have different times to completely dissolve in water, including anionic mud treatment agents.
Non-ionic mud treatment agent < Cationic mud treatment agent.
The dissolution time of anion is about 30 minutes, the dissolution time of non-ion is about 40 minutes, and the dissolution time of cation is generally about 60 minutes. Therefore, from the time of dissolution can roughly distinguish the type of polyacrylamide.
2. Test the pH value to determine.
Through testing the pH value of mud treatment agent aqueous solution, because the pH of different types of polyacrylamide is different, it can be identified by this method.
3. Mixed adding method.
Often contact with mud treatment agents are probably clear, anionic and cationic ionic type two can not be mixed, mixed to add the reaction effect, because positive and negative charge contact will form a cotton-like substance, and the liquid will become muddy and not clear. Therefore, this method can also be used for judgment.
If you want to determine, you can let the manufacturer make clear test results.
4. Judge by sewage test.
Through different mud treatment agents in sewage fitness, you can clearly determine the classification of polyacrylamide.
General anionic polyacrylamide is suitable for high concentration, positive charge suspension, and PH value is neutral or alkaline.
The cationic mud treatment agent is suitable for suspension with a negative charge.
Non-ionic polyacrylamide is suitable for suspension of organic and inorganic mixed state, PH value is neutral or acidic.
