来自美国勘萨斯大学、弗吉尼亚理工学院和州立大学（弗吉尼亚理工大学）和Black和ViTCH的一组调查人员与美国水务服务公司和圣母大学的调查人员合作，并与19家自来水公司合作和协助，正在对通过强化混凝和软化去除消毒副产物（DBP）前体进行综合评估。该研究项目的主要目标是由AWWA研究基金会赞助的，其目的是确定DBP前体去除常规凝固和软化的程度可以完全提高。 扩大工厂规模，并检查这样做的优点、缺点和成本。本文的目的是:总结水质调查的初步结果；总结从台架试验和全尺寸工厂取样中获得的结果；并确定与增强前体去除相关的一些潜在益处和危害。

A team of investigators from the University of Kansas, Virginia Polytechnic Institute & State University (Virginia Tech), and Black & Veatch, in cooperation with investigators from the American Water Works Service Company and the University of Notre Dame and with the cooperation and assistance of 19 water utilities, is conducting a comprehensive assessment of disinfection byproduct (DBP) precursor removal by enhanced coagulation and softening. The primary objective of this research project, sponsored by the AWWA Research Foundation, is to determine the degree to which DBP precursor removal by conventional coagulation and softening can be improved in full-scale plants and to examine the advantages, disadvantages, and costs of doing so. The objectives of this paper are: to summarize the preliminary results of the water quality survey; to present a summary of the results obtained from bench-scale tests and sampling of full-scale plants; and to identify some of the potential benefits and detriments associated with enhanced precursor removal.