介绍了一种评价混凝效果的新方法———透光率脉动检测法 ,并以不同浊度的高岭土悬浊液为研究对象 ,投加 3种不同剂量的混凝剂 (硫酸铝、聚合氯化铝、高分子有机絮凝剂HCA) ,通过PDA2 0 0 0检测仪对混凝效果的检测 ,以R指数评价不同混凝剂在多种浊度水样中的混凝效果。结果表明 ,透光率脉动检测技术是一种检测混凝性能的可靠方法 A new method to evaluate the coagulation effect was introduced, which is called light transmittance pulsation detection. The kaolin suspension with different turbidity was taken as the research object. Three kinds of coagulants (aluminum sulfate, Aluminum chloride and macromolecule organic flocculant HCA). The coagulation effect of different coagulants in a variety of turbid water samples was evaluated by the PDA2 0 0 0 detector. The results show that the transmissivity pulsation detection technique is a reliable method of detecting coagulation performance