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Can Polyaluminum Chloride be Replaced

2024-01-10 15:11

    Polyaluminum chloride is an inorganic polymer coagulant. Mainly through the compression of the double layer, adsorption of electric neutralization, adsorption of bridging, precipitates net trapping and other mechanisms, so that the edema fine suspended particles and colloidal ions destabilization, aggregation, flocculation, coagulation, precipitation, to achieve purification and treatment effects. The molecules of polyacrylamide can bridge and adsorb with the suspended particles dispersed in the solution, and it has strong flocculation effect. Density = 1.3 main purpose: the product has the water solubility of polymer compounds and its main chain of lively acyl, and thus has a wide range of applications in petroleum mining, water treatment, textile printing and dyeing, papermaking, mineral processing, coal washing, medicine, sugar, aquaculture, building materials, agriculture and other industries, there is a "hundred industry auxiliaries", "All-purpose products". So polymerization of aluminum chloride and polyacrylamide with the best results, the correct combination of polyaluminum chloride polyacrylamide used in the following ways.

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    The main characteristics of polyaluminum chloride.

    Polyaluminum chloride has the following advantages compared with other coagulants: wide range of applications, adapt to a wide range of water. Easy to quickly form large alum flowers, good precipitation performance. Wide range of suitable PH value (5-9), and the PH value and alkalinity of the treated water are small. When the water temperature is low, it can still maintain stable precipitation effect. Alkalinity is higher than other aluminum and iron salts, and the erosion effect on equipment is small.

    Usage: Dissolve solid polyaluminum chloride into liquid by adding water at 1:3, then add 10-30 times of water to dilute it into the required concentration and use it. The dosage can be determined according to the different turbidity of the raw water, the best dosage, generally the turbidity of the raw water in the 100-500mg / L, per thousand tons of dosage of 10-20kg.

    Main applications: urban water supply and drainage purification: river water, reservoir water, groundwater, industrial water supply purification, urban wastewater treatment, industrial wastewater and waste residue, water purification and recycling. Recovery of useful substances, promotion of coal washing wastewater in the settlement of coal dust, starch manufacturing industry in the recovery of starch, a variety of industrial wastewater treatment: printing and dyeing wastewater, leather wastewater, leather wastewater, fluorine wastewater, heavy metal wastewater, oily wastewater, papermaking wastewater, coal washing wastewater, mining wastewater, brewing wastewater, metallurgical wastewater, meat processing Wastewater, sewage treatment, papermaking auxiliaries, cloth reinforcement, catalyst carriers, pharmaceutical refining, cement quick-setting, cosmetic raw materials, and so on.

    With the increasing intensification of market competition, a variety of water treatment commodities come and go, but in this area of water treatment, it can be asserted that polyaluminum chloride in the next ten years, will still be the mainstream commodities.

    Some users will reflect that, now with aluminum sulfate treatment of sewage is also quite convenient, there is no need to have to use polymeric aluminum chloride to deal with. However, as long as the polymerization of aluminum sulfate a little understanding of the customers know that the use of polymerized aluminum sulfate is very limited, and polyaluminum chloride is very wide range of applications. Polymerization of aluminum sulfate for printing and dyeing plant wastewater treatment effect is very good, but the application of water plants, municipal sewage, sand washing plant wastewater effect is not as good as polyaluminum chloride.

    Polymeric aluminum sulfate and polyaluminum chloride in the field of sewage treatment has a very similar role. Whether its sewage adsorption and sedimentation principle or its neutralization. Even its main ingredients. Lebang polymerized aluminum sulfate manufacturers suggest that in the choice of sewage treatment chemicals, but also to consider there is also its cost-effective, for example, the role of aluminum sulfate is not as good as its polymer, however, the price of aluminum sulfate is more advantageous than polymerized aluminum sulfate.

    However, the residual aluminum content in the water after disposal of polyaluminum chloride is very low, the residual aluminum content in the water disposed of by traditional aluminum sulfate is generally 150~255μg/L, while the residual aluminum content in the water disposed of by polyaluminum chloride is only 40~55μg/L.

    Polyaluminum chloride products from the price point of view is still very practical, but the purchase of water purification agent products, or according to the quality of the wastewater we need to deal with, according to the quality of the water to choose the most suitable water purification agent products, which is the most affordable way.