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The manufacturer from Xintai Group will explain: Can polyaluminum chloride directly treat wastewater?
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2022-07-08
A customer recently asked the technical staff at a polyaluminum chloride manufacturer: “Their factory thinks it’s too much trouble to dissolve polyaluminum chloride before use. Can the water treatment agent be used directly without dissolving—can it treat wastewater directly?” Regarding this question, the answer is that polyaluminum chloride can indeed be used directly—but doing so will definitely lead to financial losses! When polyaluminum chloride water treatment agents are added directly into wastewater, they quickly coat suspended solids, causing them to flocculate and settle out, which in turn clogs equipment. Moreover, the dosage of the undissolved agent is 2 to 3 times higher than that of its aqueous solution. While this approach may seem convenient, it ultimately results in significantly higher usage costs.
The manufacturer from Xintai Group will explain: Can polyaluminum chloride directly treat wastewater?
A customer recently asked the technical staff at a polyaluminum chloride manufacturer: “Their factory thinks it’s too much trouble to dissolve polyaluminum chloride before use. Can the water treatment agent be used directly without dissolving—without worrying about it not dissolving?” Regarding this question, the answer is that polyaluminum chloride can indeed be used directly—but doing so will definitely lead to financial losses! When polyaluminum chloride water treatment agents are added directly into wastewater, they quickly coat suspended solids, causing them to flocculate and settle, which in turn can clog equipment. Moreover, the dosage of the undissolved agent is 2-3 times higher than that of its aqueous solution. While this approach may seem convenient, it ultimately results in significantly higher usage costs.
Polyaluminum chloride (PAC) is an inorganic polymeric water treatment agent with a high molecular weight and high charge. It is an inorganic polymer coagulant formed by the bridging of hydroxide ions and the polymerization of polyvalent anions. PAC exhibits rapid flocculation and sedimentation, has a wide pH tolerance range, is non-corrosive to pipeline equipment, and delivers remarkable water purification performance. It can effectively remove suspended solids (SS), chemical oxygen demand (COD), biochemical oxygen demand (BOD), as well as heavy metal ions such as arsenic and mercury from water.
Xintai Group Manufacturer: Proper Use of Polyaluminum Chloride
1. When using water purification agents, conduct a small-scale trial based on the water quality to identify the optimal dosage that delivers the best purification effect with the least amount used. The solution should be prepared and used immediately. For non-potable water, the dosage should be selected according to the actual conditions.
2. When using the solid form, first dissolve it in water to prepare a solution with a concentration of 10-25%, then dilute it to the desired concentration. During dissolution, add water slowly while continuously stirring.
3. Water treatment agents from different manufacturers or brands must not be mixed, nor should they be used in combination with other chemicals.
4. The stock solution and diluent are mildly corrosive, but less so than other inorganic flocculants.
5. The product’s shelf life is: one year for the liquid form and two years for the solid form. The product remains usable even after the solid form becomes damp.
6. After appropriately adding polyaluminum chloride, the purified water meets the hygienic standards for drinking water.
Xintai Group Manufacturer: Usage and Precautions for Polymeric Aluminum Chloride
1. Determine the product model and dosage through small-scale trials.
2. Prepare an aqueous solution of this product at a concentration of 0.1% (solid content), preferably using neutral water that is free of salts.
3. When dissolving in water, evenly sprinkle the product into stirring water and heat it appropriately.
4. Solid products are packaged in polypropylene woven bags with a plastic liner inside, 25 kg per bag. The gel-like substance is packaged in plastic drums with a plastic liner inside, 50 kg or 200 kg per drum.
5. This product is hygroscopic and should be stored in a sealed container in a cool, dry place at a temperature below 35℃.
6. Avoid scattering solid products on the floor to prevent the floor from becoming slippery due to moisture absorption by the products.
7. When preparing an aqueous solution of PAM, it should be done in an enamel, galvanized, aluminum, or plastic container; never prepare or store it in iron containers.
That’s all for today’s explanation from Xintai Group’s manufacturer. Thank you all for watching!
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