本研究的目的是在实验室中模拟工业压载絮凝过程，以大幅降低全尺寸工厂的安装和优化成本。对传统的罐试验方法进行了修改，以适应添加微砂和聚合物的情况。然后，该新程序被用于研究若干控制参数或处理变量（混凝剂和聚合物剂量、混凝pH值、微砂剂量、接触时间和温度）对工艺性能的相对重要性。整个研究项目遵循以下研究目标:评估和验证改进的jar测试程序模拟大型试验的能力- 通过比较两种处理规模下的沉淀水质量，进行规模应用；调查影响压载絮凝的因素，确定决定沉淀水质量的关键参数；研究了聚合物和微砂用量对压载絮凝性能的影响。包括12个参考文献、表格和图表。

The objective of this study was to simulate the industrial ballasted flocculation process in the laboratory, with a view to substantially reducing installation and optimization costs in a full-scale plant. The conventional jar test methodology was modified to accommodate the addition of micro-sand and polymer. This new procedure was then used to investigate the relative importance of a number of control parameters or treatment variables (coagulant and polymer dosages, coagulation pH, micro-sand dosage, contact times and temperature) on process performances. The following research objectives were followed throughout the research program: assess and validate the capacity of modified jar test procedures to simulate large-scale applications by comparing the quality of the settled water at the two treatment scales; investigate the factors affecting ballasted flocculation and identify key parameters defining the quality of the settled water; and, study the effect of the dosages of polymer and micro-sand on the performances of ballasted flocculation. Includes 12 references, tables, figures.