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Polyacrylamide The Effect Of The Treatment
Aug 14, 2017

As the sewage treatment sometimes use polyacrylamide, Polyacrylamide and sometimes use poly aluminum chloride, since both are the role of sewage treatment. Why do you have two different categories? Of course there are two different uses of the existence of the two, when it comes to use, indeed polyacrylamide and poly aluminum chloride there are many different places. Polyacrylamide (also known as white medicine), Polyacrylamide also known as PAM, polyacrylamide is mainly used in sewage treatment, raw water treatment and industrial water treatment. In the sewage treatment. Polyacrylamide can be used for sludge dewatering. In raw water treatment, polyacrylamide and activated carbon can be used for coagulation and clarification of suspended particles in living water. Polyacrylamide In industrial water treatment, it is mainly used as formula. In the sewage treatment, the use of PAM can increase the utilization of water reuse cycle. In the raw water treatment, with the organic flocculant PAM instead of inorganic flocculant, in the absence of transformation of the sediment pool, can also improve the water purification capacity of 20%. At present, many large and medium cities in the water shortage or poor water quality, by the poly aluminum chloride (commonly known as xanthate) treatment of sewage is also a good effect, it is a wide range of applications, widely adapted to a variety of water. Can quickly form a large alum flowers, Polyacrylamide precipitation performance. The appropriate PH value range of five to nine wide, and after treatment of water PH value and alkalinity decreased. Water temperature is low, can still maintain a stable precipitation effect. Alkalinity than other aluminum salts, iron salts, the erosion of the device is small.

Polyacrylamide can be divided into anionic polyacrylamide, Polyacrylamide cationic polyacrylamide, nonionic ion polyacrylamide and amphoteric polyacrylamide, each ion structure (such as anion) its molecular weight is very different, generally from 2 million to 22 million , The active ingredient content ranging from 40% to 90%, these differences directly lead to a huge difference in flocculation effect, Polyacrylamide but only from the appearance is difficult to distinguish. Such as Qingpu a company electroplating wastewater treatment process, under the same conditions to join a manufacturer of polyacrylamide, measured after precipitation, Polyacrylamide chromium ion content of up to 12mg / L, increased by 3 times the amount of chromium ions eventually reduced to only 7mg / L , Continue to increase the amount of basic no longer any effect, and will cause the increase in COD. And the addition of high-quality ultra-high molecular weight polyacrylamide, the amount of only the former 1/3, Polyacrylamide so that the chromium ion content reduced to 0.9mg / L.

A simple way to distinguish the quality of polyacrylamide:

(As about half an hour), Polyacrylamide the solid is completely dissolved, the concentration of high molecular weight solution, the viscosity is significantly higher than the concentration of the same, Low molecular weight products. High purity products are usually very transparent, low-quality products, low transparency, Polyacrylamide often with a certain degree of white.

Learn how to choose polyacrylamide (PAM), consumers can choose what they need this thing the importance of the.