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Mathematical modeling and analysis of the flocculation process in chambers in series

机译:串联室中絮凝过程的数学建模与分析

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In this study, the flocculation process in continuous systems with chambers in series was analyzed using the classical kinetic model of aggregation and breakup proposed by Argaman and Kaufman, which incorporates two main parameters: K_a and K_b. Typical values for these parameters were used, i. e., K_a = 3.68 ×10~(-5)-1.83 ×10~(-4) and K_b = 1.83 ×10~(-7)-2.30 ×10~(-7) s~(-1). The analysis consisted of performing simulations of system behavior under different operating conditions, including variations in the number of chambers used and the utilization of fixed or scaled velocity gradients in the units. The response variable analyzed in all simulations was the total retention time necessary to achieve a given flocculation efficiency, which was determined by means of conventional solution methods of nonlinear algebraic equations, corresponding to the material balances on the system. Values for the number of chambers ranging from 1 to 5, velocity gradients of 20-60 s~(-1) and flocculation efficiencies of 50-90 % were adopted.
机译:在这项研究中,使用Argaman和Kaufman提出的经典的聚集和分解动力学模型,分析了串联有连续腔室的连续系统的絮凝过程,该模型包含两个主要参数:K_a和K_b。使用这些参数的典型值,即。例如,K_a = 3.68×10〜(-5)-1.83×10〜(-4),K_b = 1.83×10〜(-7)-2.30×10〜(-7)s〜(-1)。分析包括在不同操作条件下进行系统行为的仿真,包括使用的腔室数量的变化以及单元中固定或成比例的速度梯度的利用。在所有模拟中分析的响应变量是达到给定絮凝效率所需的总保留时间,这是通过非线性代数方程的常规求解方法确定的,该方法对应于系统中的物料平衡。腔室数的取值范围为1-5,速度梯度为20-60 s〜(-1),絮凝效率为50-90%。

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