目前，一个由美国环保局资助开发的计算机模型正在监管开发工作中使用。该模型估计了通过混凝去除三卤甲烷前体的情况，并预测了饮用水处理过程中天然水氯化后三卤甲烷的形成。为了解决模型在DBP规则制定中的适用性问题，AWWA的消毒剂/DBP技术咨询工作组（TAW）进行了一项台架规模研究，旨在为模型的未来扩展、完善和校准提供数据。 该实验室规模项目的主要目标是:1）调查原水和沉淀水臭氧氧化后DBP的形成，2）确定混凝剂类型、混凝剂剂量和混凝pH值对从天然水中去除THM和卤乙酸（HAA）前体物质的影响。本文概述了根据美国环保局的风险水平浓度讨论的实验结果。“混凝和臭氧氧化对消毒副产物形成的影响”研究的完整结果可通过AWWA获得。完整研究的出版顺序号为#55005。

Presently, a computer model developed with funding from the USEPA is being used in the regulatory development effort. The model estimates the removal of trihalomethane precursors by coagulation and predicts the formation of THMs upon chlorination of natural waters during drinking water treatment. In order to address concern regarding the applicability of the model to DBP Rule development, a bench-scale study was performed for the AWWA's Disinfectant/DBP Technical Advisory Workgroup (TAW), which was designed to produce data for future expansion, refinement and calibration of the model. The primary objectives of the bench-scale project were to: 1) Investigate the formation of DBPs upon ozonation of raw and settled waters, and 2) Determine the impact of coagulant type, coagulant dose and coagulation pH on the removal of THM and haloacetic acid (HAA) precursors material from natural waters. This paper presents an overview of the experimental results discussed in terms of the USEPA's risk level concentrations. Complete results of the study, "Effect of Coagulation and Ozonation on the Formation of Disinfection By-Products," are available through AWWA. The complete study is publication order number #55005.