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As we all know, the main function of the centrifuge separator equipment is to remove the insoluble matter in the fluid. Whether it is solid or liquid, the insoluble matter is removed. So the question is many heavy metal pollution ions are soluble, what should we do? SAIDELI will discuss with you how these sewage treatment agents like precipitants and flocculants are used in centrifuge in industry solid-liquid separation processes and how to choose them.
The precipitant reacts with the chemical properties of the free ions to form an insoluble precipitate. The flocculant makes the solid suspension with extremely small particle size aggregate together to form a large particle size polymer, and pretreatment of the fluid facilitates the solid-liquid separation operation of the decanter separator. The combined use of sewage treatment agents such as precipitants and flocculants enables the aggregation and sedimentation of solid particles to remove part of the dissolved organic matter at the same time, which simplifies the operation and saves costs, and makes the removal of pollutants in wastewater treatment more thorough, efficient and complete. The cost is also lower. This allows the chemical industry sewage with more ionic pollution and complex suspended solids to be treated by a decanter separator for solid-liquid separation.
In order to achieve a good sewage treatment effect, the physical and chemical properties of the sewage should be specially analyzed when selecting the agent in the sewage treatment of the decanter separator. It is necessary to know the ion distribution of sewage, the nature and concentration of colloids and suspended solids, and select the chemicals in a targeted manner. If the pollutants in the water are colloidal, inorganic flocculants are the first choice for destabilizing and coagulating the polluted suspended solids. If the flocs are small, it is necessary to add a polymer flocculant or use a coagulation aid such as activated silica gel.
Sometimes in-depth analysis of material properties can bring unexpected surprises. In view of the charged condition of particles in sewage, choosing the appropriate charged properties of flocculants is often more effective with less effort. According to the principle of charge, the same sex repels and opposites attracts each other, and the use of negatively charged flocculants to complex positively charged suspended particles can achieve twice the result with half the effort. Positively charged flocculants are more suitable for capturing negatively charged particulate suspended solids with extremely small particle size in sewage. Of course, in order to confirm whether the charge characteristic of the pollutant particles is the best partner of the decanter separator, a small sample test and an on-machine experiment are essential.
In the pollution control of the decanter separator, the selection of the flocculant precipitant is best determined by the sampling test to determine the optimal plan. Take sewage samples to determine the plan through the experimental centrifuge equipment, and then fine-tune the production to confirm the best ratio of the chemicals.
Filtration, flotation and other treatment processes are often used in sewage and centrifuge wastewater treatment. By using inorganic flocculants and polyelectrolyte coagulants, the effluent quality is greatly improved by extending the treatment range and enhancing the treatment capacity. Flocculants, precipitants and other agents are combined with the characteristics of wastewater water quality. Flocculants can be used alone, or in combination with multiple flocculants or in combination with one main and one auxiliary (the auxiliary is used as a flocculant). In many cases, the combined use of inorganic flocculants and polymer flocculants can significantly improve the coagulation effect and extend the separation and processing application range of centrifuges in industry.