Polyaluminum Chloride Used as Water Treatment Agent

Polyaluminum chloride (PAC) is a widely used flocculant for water treatment, and its properties are directly related to the water treatment effect and water quality safety. In the application process of PAC, there are several key quality indicators that have an important impact on the flocculation effect. This article will explore these metrics in detail to better understand how they affect the flocculation performance of PACs.   First, the salt base Basicity, also known as alkalization, is a measure of the degree of hydroxylation or alkalization in PAC, usually expressed as a percentage of the hydroxy-aluminum molar ratio B=[OH]/[Al]. This index is one of the most important quality parameters of PAC, and has a close relationship with the flocculation effect.   In the range of raw water turbidity of 86 to 10,000 mg/L, the optimal basicity of PAC is usually between 40% and 85% (in molar ratio, the corresponding value is about 409 to 853). When the concentration of raw water is…

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