Poly ferric sulfate
Polyferric sulfate is an inorganic polymer flocculant formed by inserting hydroxyl groups into the network structure of iron sulfate molecular family. It can effectively remove suspended solids, organics, sulfides, nitrites, colloids and metal ions in water. The functions of deodorization, demulsification and sludge dehydration also have a good effect on the removal of planktonic microorganisms.
Polyferric sulfate can be widely used in the turbidity removal of various industrial water and the treatment of industrial wastewater from mines, printing and dyeing, papermaking, food, leather and other industries. The product is non-toxic, low corrosive, and will not cause secondary pollution after use.
Compared with other inorganic flocculants, its dosage is small, its adaptability is strong, and it can obtain good effects on various water quality conditions. It has fast flocculation speed, large alum blooms, rapid sedimentation, decolorization, sterilization, and removal of radioactive elements. It has the function of reducing heavy metal ions and COD and BOD. It is a cationic inorganic polymer flocculant with good effect at present.
Item | Index | |
Drinking water grade | Waste water grade | |
Solid | Solid | |
Relative density g/cm3 (20℃)≥ | - | - |
Total iron %≥ | 19.0 | 19.0 |
Reducing substances (Fe2+)% ≤ | 0.15 | 0.15 |
Basicity | 8.0-16.0 | 8.0-16.0 |
Undissolved substance )% ≤ | 0.5 | 0.5 |
pH(1% water solution) | 2.0-3.0 | 2.0-3.0 |
Cd % ≤ | 0.0002 | - |
Hg % ≤ | 0.000 01 | - |
Cr % ≤ | 0.000 5 | - |
As % ≤ | 0.000 2 | - |
Pb % ≤ | 0.00 1 | - |
Related Product
The raw materials of yellow polyaluminum chloride are calcium aluminate powder, hydrochloric acid and bauxite, which are mainly used for sewage treatment and drinking water treatment. The raw materials for drinking water treatment are aluminum hydroxide powder, hydrochloric acid, and a little calcium aluminate powder. The process adopted is the plate and frame filter pressing process or spray drying process. For the treatment of drinking water, the country has strict requirements on heavy metals, so both raw materials and production process are better than brown polyaluminum chloride. There are two solid forms: flake and powder.
The white polyaluminum chloride is called high purity iron free white polyaluminum chloride, or food grade white polyaluminum chloride. Compared with other polyaluminum chloride, it is the highest quality product. The main raw materials are high-quality aluminum hydroxide powder and hydrochloric acid. The production process adopted is the spray drying method, which is the first advanced technology in China. White polyaluminum chloride is used in many fields, such as paper sizing agent, sugar decolorization clarifier, tanning, medicine, cosmetics, precision casting and water treatment.
The raw materials of brown polyaluminium chloride are calcium aluminate powder, hydrochloric acid, bauxite and iron powder. The production process adopts the drum drying method, which is generally used for sewage treatment. Because iron powder is added inside, the color is brown. The more iron powder is added, the darker the color is. If the amount of iron powder exceeds a certain amount, it is also called polyaluminium ferric chloride at some times, which has excellent effect in sewage treatment.
Poly Aluminium Chloride products for use in water treatment are typically characterised by their level of basification (%). Basification is the concentration of hydroxyl groups relative to aluminium ions. The higher the basicity, the lower the aluminium content and therefore the higher performance regarding contaminant removal. This lower rate of aluminium also benefits the process where aluminium residuals are greatly reduced.
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