Water Treatment Agents, whether solid or liquid, whether flocculants or Polymeric Aluminium Chloride, or polymeric ferric sulfate, titanate isopropyl ester hydroxyaluminum, all of them have a preservation period, more than the preservation period, have the risk of invalidity. How to determine whether it is ineffective? In terms of flocculants, different types of flocculants, the preservation period of time is not the same, this and its structure has a very big correlation. 1.The preservation period of Flocculant PAM powder Application of flocculant powder, because of its solid content is the largest, general conditions, flocculant powder in the dry, cool, naturally ventilated areas can be stored for more than two years. But after dispensing aqueous solution, its storage time is very limited, in which the positive ion flocculant is proposed to be used up within 24 hours after melting, while the cation is proposed to be applied within 48 hours.
2.The preservation period of flocculant PAM aqueous solution According to the standard material concentration of 0.1%, non-cationic flocculant aqueous solution is not more than one week; positive ionic flocculant aqueous solution is not more than one day, and the reliability of the aqueous solution is also related to the concentration of the solution, the more concentration of the value of the matching of the concentration of the more concentrated (such as 3% to 5%) of the aqueous solution the longer the storage time, but the 3% to 5% of the aqueous solution can not immediately go to the treatment of wastewater, the application of the liquid should also be diluted before the application of positive ionic flocculant. The pH value of the aqueous solution is smooth when it is lower than 5.5, and it will be invalidated quickly because of the hydrolysis reaction when it exceeds 6.0. The preservation period of water substance dispersed flocculant is six months!
3.Common problems of storing flocculant PAM powder
The most basic is to pay attention to the waterproof, in case of heat, the powder should be placed in the shade and cool place. Avoid putting it together with other flavorful chemical raw materials. There is no need to neutralize the flocculant due to the supply of other materials. Naturally, we must pay attention to a variety of standards and taboos for storing flocculant powder, PAM is more sensitive to ferrous ions, sodium ions, aluminum ions than cationic convergence chemicals, ferrous ions are metal catalysts that lead to chemical degradation of all flocculants, therefore, when configuring, migrating, and storing flocculants in aqueous solution, we should try to minimize the ferrous ions to enter, and the aqueous solution touching the machinery and equipment should best be used. Stainless steel plate, plastic, glass fiber reinforced plastic anti-corrosion or surface coating resin carbon steel production and manufacturing. For flocculant coagulant agglomeration condition, many people have questions, whether it is invalid, but also whether you can make reuse, in fact, like this kind of condition if you can dissolve it, the solution has viscosity, is not invalid, but after the agglomeration of flocculant is difficult to melt away.
