How to optimize the flocculation effect of flocculants

Coagulation principle: compression electric double layer action, adsorption bridging effect. The destabilized colloidal particles coalesce with each other, which is called coagulation; The process of making particles bond to each other by the adsorption and bridging of polymer substances is called flocculation. Coagulation and flocculation are collectively referred to as coagulation.

The main factors affecting the coagulation effect are: water temperature, water quality, hydraulic conditions, type and amount of coagulant, etc.

1. Water temperature. When the water temperature is low, the hydrolysis (endothermic reaction) of the inorganic salt coagulant is difficult; At the same time, the water temperature is low and the viscosity is large, which is not conducive to the mutual flocculation of the destabilized colloids. Therefore, the right water temperature is ensured.

2. PH value. Different coagulants, only a certain pH range is used. If aluminum sulfate coagulant is used, the effect is better when pH; At higher pH, the resulting aluminium hydroxide is dissolved into metaaluminate, which loses its coagulation effect.

3. Hydraulic conditions. The coagulation process can be divided into mixing and reaction phases. The mixing stage requires rapid and vigorous agitation, and the agent is quickly and evenly diffused into the entire water to create good hydrolysis and polymerization conditions, so that the colloids are destabilized and coagulated with the help of the colloid's Brownian motion and turbulent water flow.

However, for polymer coagulants, the mixing function is mainly to make the agent evenly dispersed in water, and the "fast" and "violent" requirements are not important.

4. The type and amount of coagulant. Different coagulants should be selected for the treatment of different types of wastewater, and the dosage of coagulant should be determined according to the concentration of water and separation requirements.

Usually we talk about viscosity at a certain concentration and temperature. For the existing flocculant, its molecular weight is certain, and the viscosity at a certain concentration is also certain.

For the flocculant that has been produced, it is generally impossible to increase the viscosity, or add a crosslinker to make it partially branched or crosslinked. Changing its fluid dynamics can improve its viscosity to a certain extent.

Of course, the most direct way to improve the viscosity of the flocculant is to increase the degree of polymer and increase its molecular weight, so that it is the most direct and effective.

Another method is to add plasticizers, nucleating agents, etc. at the time of crystallization, which can improve the crystallinity and thus improve the viscosity of the product.

Generally, the latter is not advisable, and the result of this is that for water treatment, it is not able to reduce the unit cost of treating sewage, but may also increase its cost, and it can only be effective when it is used as a thickener. For example, the incense industry.

Is the flocculant you use a generic polyaluminium chloride? If you want to optimize the effect, you can switch to the upgraded product of polyaluminum, polyaluminum iron silicate, and then use it with polyacrylamide, the effect will be better, and if you want to further optimize, it is best to use imported French Aisen polyacrylamide.

The flocculant that the landlord said is an organic flocculant or an inorganic flocculant, if it is organic, you can go to the polyacrylamide consulting service station to see, there seems to be a lot of this, if it is inorganic, I feel that the dissolution is good, the water temperature is suitable, the pH is moderate, and the stirring and mixing can be even.

Summary. Hello, according to your question mine is.

Flocculant belongs to several large molecular organic compounds, soluble in water, mainly mechanical impurities in flocculated water, I don't know where you want to go Flocculant, if it is stuck on the **, clothing or other places, directly clean it with water. If you want to remove the flocculant that has already dissolved in the water (separating the water from the flocculant), it is more troublesome. But it's not impossible:

It can be filtered with a pure water machine, and the water that comes out basically does not contain flocculants, and then there is a flocculant after the process of flocculating impurities, a large amount of flocculant has been consumed, so that the concentration of flocculant in the water has been reduced a lot. There is a direct correlation between the amount of impurities in the water and the consumption of flocculants.

If it helps you, please give it a thumbs up. Thank you!

How can the flocculant be removed.

Hello, according to your question, my flocculant belongs to several large molecular organic compounds, soluble in water, mainly mechanical impurities in flocculated water, I don't know where you want to go where the flocculant is, if it is stuck on the **, clothing or other places, directly clean it with water. If you want to remove the flocculant that has already dissolved in the water (separating the water from the flocculant), it is more troublesome. But it's not impossible:

It can be filtered with a pure water machine, and the water dispersion height that comes out basically does not contain the flocculant of Chongshou Nianchang, and then the flocculant has consumed a large amount of flocculant after the process of flocculating impurities, so that the concentration of flocculant in the water has been reduced a lot. There is a direct correlation between the amount of impurities in the water and the consumption of flocculants. If it helps you, please give it a thumbs up.

Thank you! How can the flocculant be cleaned up when it is adsorbed on the dosing shaft in a gelatinous form?

Hold on. Hello, if the cavity town is an inorganic flocculant, it can be dissolved with acid. If it is an organic flocculant, a solvent solvent can be added, and if it is an inorganic matter to be flocculated, the flocculant can also burn off the wax worm.