Commonly used industrial water treatment agent - scale inhibitor.
The commonly used scale inhibitors include: polyacrylate PAA, HPMA, MA/AA, t-225, etc. Although these agents can be dissolved in water quickly, the corrosion inhibition effect of the equipment and system can be reduced.However, there are significant differences between the application characteristics, applicable temperature, concentration and PH control range, as well as the materials generated in water.Therefore, the local water quality conditions and operation condition are the important determinants of scale inhibitors.
Commonly used industrial water treatment agents - fungicides.
There are many kinds of fungicides, such as sodium hypochlorite and chlorine dioxide, which can be used in combination with scale inhibitor and corrosion inhibitor.However, in order to ensure the best effect of bactericide, the following items should be noted when using fungicide:
(1) for the open cooling water system, it is strictly prohibited to add the fungicide to the water back pipe. The fungicide pipe should be directly connected to the water surface of the cooling tower.
(2) the large system and small and medium-sized systems should be used in a continuous manner to be added to the water treatment agent, so as to avoid the addition of the medicine at a time, with a time interval of 2 ~ 3h.
(3) when adding fungicide, it should be avoided to join with copper corrosion inhibitor, and the PH value of circulating water should be 7 ~ 8;The sludge in the cooling tower sink should be eliminated in time.
Commonly used water treatment agent - flocculant.
Flocculant can be divided into inorganic flocculant and organic flocculant according to its chemical composition.
Inorganic flocculants include inorganic flocculants and inorganic polymeric flocculants, such as aluminum sulfate, aluminum chloride, ferric sulfate, polymerization chlorination, polymerization of ferric sulfate, etc.
Organic flocculant can include: synthetic organic polymer flocculant, natural organic polymer flocculant and microbial flocculant, such as polyacrylamide, starch chitosan, etc.
Whether organic flocculant or inorganic flocculant, they have the common characteristics of the aggregation of particles that can be suspended in a solution to form a large flocculated pellet or lump.