Polyaluminum iron bisulfate is a new type of high-efficiency water purifier that combines the advantages of aluminum salt and iron salt water purifiers. It is based on the high-efficiency water purifier polyaluminum chloride, and aggregates an appropriate amount of high-efficiency water purifier polyferric chloride, and introduces an appropriate amount of enhancer (SO4) 2- ions to form a new type of high-efficiency water purifier composed of inorganic polymer polysulfide ferric chloride and polysulfide aluminum chloride. Its chemical formula is:
[AL2（OH）nCL6-N-2K（SO4）K]m? X[Fe2（OH）nCL6-N-2K（SO4）K]m， (abbreviated as PAFCS in English).

BaikePolyaluminum iron bisulfateIt has a high content of active ingredients, high basicity, high polymerization degree, dense molecular chain network, and a large structure. It has stronger adsorption and coagulation ability and better purification effect in the process of water purification. It is a new generation of inorganic high-efficiency water purification agent that is efficient, fast, low consumption, non-toxic, and safe. He cleverly utilized the compensatory properties of iron ions, effectively eliminating the harm of aluminum ions in purified water to the human body.

Polyaluminum iron bisulfate (PAFCS) can significantly reduce the dosage and cost investment compared to traditional products such as solid polyaluminum chloride (PAC), liquid aluminum sulfate, liquid polyaluminum sulfate, polymeric iron sulfate, and polymeric ferric chloride. Especially for the serious changes in water quality and the difficulty in decolorization of low and high turbidity water, it can meet the purification requirements that cannot be solved by existing water purifiers. The physical and chemical strengthening of the primary treatment process can be widely applied to urban combined sewage. After treatment, the water quality indicators meet the primary discharge standards, the total phosphorus removal rate is high, and the eutrophication of the water body can be controlled.

The cost of water treatment is lower than that of secondary biological treatment processes, which not only reduces infrastructure investment costs, but also greatly reduces operating costs. It is a very practical and effective water treatment process.
Polyaluminum iron bisulfate not only has inorganic coagulation and sedimentation effects, but also has efficient net capture and sweeping effects of polymer flocculants. Compared with traditional aluminum salt and iron salt water purifiers, it can improve treatment efficiency, reduce water treatment costs, and correspondingly improve the water quality after treatment.

1、 Product performance
1. Polyaluminum iron bisulfate is easily soluble and forms flocs quickly during hydrolysis, with high activity and rapid settling and separation.
2. The dosage is small, the cost is low, and the effect is better when other additives such as polyacrylamide are added.
3. With a wide range of pH values, it has strong adaptability to high turbidity high-temperature water, low turbidity low-temperature water, and organic polluted water, and has good effects.
4. Baike Polyaluminum Iron can effectively remove heavy metal and radioactive contamination from water, as well as fluoride, and has certain abilities in sterilization, disinfection, and decolorization.
5. It has low corrosiveness to equipment and pipelines, easy operation, small dosage, and low purification cost.
2、 Product Usage
Among users of secondary fiber papermaking, it can be used for sedimentation, air flotation, decolorization, and the treated water quality can meet the requirements for reuse or discharge, and its treatment cost is lower than current polyaluminum and other materials.
2. Purifying drinking water, with a water purification effect 3-15 times that of aluminum sulfate; 2-5 times that of ferric chloride. This product forms flocs quickly and large, with tight and highly active flocs. Therefore, the sedimentation rate is fast, the water quality is clear, and the purified water meets the national drinking water standards.
3. It can be widely used for industrial water and urban sewage, and the treated water quality indicators can meet the discharge standards.
4. Baike Polyaluminum Iron can remove trace elements from water, purify wastewater containing lead, chromium, cadmium, sulfides, etc., and has decolorization effect. It can be used for special water purification, various industrial wastewater treatment, widely used in industrial wastewater treatment such as papermaking, dyeing, leather making, mineral processing, steel, heavy metals, pharmaceuticals, food, as well as water purification treatment in electronics and power plants.
3、 Product usage
Polyaluminum iron bisulfate (PAFCS) should be diluted 10 times before being added to water and stirred evenly. The diluted product must be used up within 48 hours. The dosage increases with the increase of turbidity. The treatment of raw water is generally between 10-50mg/L, and the treatment of wastewater is generally between 50-200mg/L. Electronic documents related to polyaluminum iron bisulfate (PAFCS)