Coagulation Stage

It is a process in which the liquid is injected into the coagulation tank and the raw water is rapidly coagulated to form fine alum flowers in a very short period of time. At this time, the water becomes more turbidity, which requires the water flow to produce intense turbulence. In the beaker experiment, it is advisable to stir quickly (250-300 RPM) for 10-30S, generally not more than 2min.

Flocculation Stage 

It is the process of alum growth and coarsing, which requires appropriate turbulence and sufficient residence time (10-15min). In the later stage, a large number of alum can be observed to gather and sink slowly to form a clear surface layer. The beaker experiment was stirred at 150 RPM for about 6 minutes, and then stirred at 60 RPM for about 4 minutes until it was suspended.

Settlement Stage 

It is the settling process of flocculant in settling tank, which requires slow water flow. In order to improve efficiency, inclined tube (plate) settling tank is generally adopted (it is best to separate flocculant by air flotation). A large number of coarse alum flowers are blocked by the inclined tube (plate) wall and deposited at the bottom of the pool. The upper water is clarified water. The residual turbidity remained basically unchanged in the later stage. The beaker experiment should be stirred at 20-30 RPM for 5 minutes, and then settled for 10 minutes to measure the remaining turbidity.

Strengthening filtration, mainly the reasonable selection of filter layer structure and filter aid, in order to improve the removal rate of filter, it is an important measure to improve water quality.

This product is used in environmental protection, industrial wastewater treatment, the use of the same as the water plant, high chroma, high COD, BOD raw water treatment, supplemented by additives effect is very good.

For enterprises using chemical coagulation method, the original equipment does not need to be greatly reformed, and the product can be used only by adding an alum dissolving pond.

This product must be stored in a dry, moisture-proof and heat-proof place (<80oC, do not damage the package, the product can be stored for a long time).

This product must be dissolved before use, and the dissolving equipment and dosing facilities should be made of corrosion-resistant materials.