What is Polymer?
Polymer is a highly effective chemical sedimentation aid, used for the purpose of treating swimming pool water, wastewater treatment in factories and factories. This chemical will participate in the flocculation process when it is added to the wastewater. The presence of the polymer causes floc to be formed with larger sizes, thus settling more efficiently.
More details:
hoa chat xu ly nuocIn fact, just a tiny amount of polymer is enough to make dirty water clear. And a few hundred grams of polymer is enough to dry a ton of sludge. That is a testament to the effectiveness of this chemical in the wastewater treatment industry.
Chemical nature of Polymer
The chemical nature of Polymer is clearly reflected by its constituents, which are Poliacrylamin and Copolime. Specifically, polymers used in wastewater treatment are classified into 3 groups of electrical properties as follows:
Cationic: Carrying polymer molecules positively charged, soluble in water.
Anionic: carries a negatively charged polymer molecule, soluble in water.
Nonionic: Polymeric polymer molecule that is polar or non-charged, soluble in water.
In each of the charged groups above, the Polymer is also differentiated by many other factors. These can be mentioned as molecular weight or polymerization, viscosity of Copolime solution, ratio of monomers in copolime molecule.
Regarding the role these electrolytes play in wastewater treatment, you can understand that Nonionic will contribute to the bonding of colloidal particles. And Cationic and Anionic will take care of both that are flocculation and creating adhesive between colloidal particles.
More details:
hoa chat khu mauMechanism of action of Polymer when added to treat wastewater
When you put Polymer into the wastewater source, it will impact on the colloidal particles, the suspended residues, from which two phenomena are flocculation and flocculation. So what is flocculation and flocculation? Why is it effective in wastewater treatment?
Flocculation mechanism
Wastewater contains many different compounds, typically solutes, suspended sediments and colloidal particles. These colloidal particles can be
Fe2O3 or
SiO2, collectively referred to as inorganic particles, but also organic particles such as grease. These jeo particles have the ability to absorb ions available in wastewater to form a protective ionic shell around it. Therefore, the colloidal particles are not deposited, but they will be mixed in the wastewater.
The ionic shell around the colloidal bead can be either negative or positive. The potential jump from the surface of the colloidal grain to the sheath is called the zeta potential. The larger zeta potential means that the structure of the colloidal particles is more stable and difficult to break. However, when we add to the water source, the highly charged negative ions will be broken down easily, the strength of the colloidal seed and the shell weakens until zero. Colloidal granules will automatically be separated from the solution. This is exactly the flocculation process.
Flocculation mechanism
When we put Polymer into the water to be treated, the colloidal particles will no longer be sustainable, this mechanism has been stated above.
When there is no protective cover left, the glue particles will stick together into a cotton ball, until it is big enough, it will settle. This is the flocculation phenomenon.
Inherently, the settling rate of colloidal particles is very slow because their size is too small. To speed up the cleaning process of wastewater, one must find a way to make the settling process faster. That is why long-chain, high-viscosity organic substances are used, in other words to increase the polymer content.
However, if you add too much Polymer content, it will happen colloidal phenomenon, the colloidal particles create a new ionic shell, leading to the reaction. That is why it is very important to learn carefully about the dosage of Polymer used.
Advantages of using Polymer in wastewater treatment
The ability to aid in sedimentation, flocculation, flocculation is superior compared to other solutions.
Cost savings, as the amount of Polymer use per unit cubic meter of wastewater is extremely small.
Easy storage method.
Easy to use.
Thanks to the variety of electrical properties and abundant items, it is possible to clean a lot of water if you know how to use polymers.
Effective application in many different industrial production fields.
The flux polymer types are popular in the market today
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