Poly ferric sulfate is an efficient inorganic polymer coagulant, which has a very good effect on sewage treatment. However, the effect of PFS is affected by the quality of products. So how to judge the quality of the products? 

The quality of the product is generally affected by the iron content, salinity, density and pH value of the PFS. The iron content of polymerized iron sulfate is an important production index of polymerized iron sulfate. The iron content of polymerized iron sulfate directly affects the effect of later use. The basicity of PFS is also a production index of PFS. However, due to the influence of production process, there is a general range. Most of the time, the higher the basicity of PFS, the better the coagulation effect of water treatment.

The density and pH value of PFS are the data obtained after production. These factors have little influence on the product quality of PFS, and generally there will not be much problem in the appropriate range.

At present, most of the polymerized ferric sulfate on the market is yellow brown powder solid, and also has certain irritation, so it needs to have corresponding safety measures. The polymerized iron sulfate is easy to dissolve in water. It is necessary to add water to dissolve it in use, and then configure the solution with reasonable concentration to use it to achieve better water purification effect.