It is important to note that the application scope of
polyaluminium chloride is now remarkably extensive. Consequently, numerous polyaluminium chloride products exist, with varying degrees of quality. In terms of colour, polyaluminium chloride may appear white, yellow, or other hues. Regarding form, it can be either liquid or solid. Different polyaluminium chloride products also exhibit distinctions in production technology, leading to variations in recommended usage quantities.
How do the usage methods differ? Let us first consider yellow polyaluminium chloride products. When employing yellow polyaluminium chloride, one should conduct water quality tests before selecting an appropriate dosage. This dosage should then be added according to a specific ratio. For solid polyaluminium chloride, application methods vary by product type. It may be added directly or diluted prior to use. Dilution is typically based on aluminium chloride content, with the dilution volume determined by the water quality being treated. Ensure complete dissolution during mixing before diluting according to the tested ratio. Liquid products may be added directly or diluted before application.
The dosage of polyaluminium chloride also varies with water quality. For instance, when treating low-turbidity water with solid polyaluminium chloride, dilution is typically based on weight ratio. After dilution, stir until complete dissolution. For domestic or industrial wastewater treatment, a fixed dosage is applied. Typically, pure polyaluminium chloride is added per tonne of wastewater, followed by the diluted polyaluminium chloride solution. Should the treatment yield unsatisfactory results, the dosage of polyaluminium chloride should be adjusted accordingly, either reduced or increased based on actual conditions. When applied to wastewater treatment in paper mills, the dosage should be configured according to the proportion used for low-turbidity water. Should the effect remain inadequate, additional polyaluminium chloride may be added judiciously.
It is crucial to note that when employing polyaluminium chloride products, precise control over application methods and dosage is essential to achieve optimal purification results. Therefore, prior to use, it is imperative to thoroughly understand the water requiring purification, its specific characteristics, and the properties of the polyaluminium chloride product to formulate a suitable application strategy and attain satisfactory outcomes.
