Hastreiter R J, Falken M C, Smith G G, Wunderlich H C, Roesch M H
Minnesota Department of Health, Minneapolis 55440.
J Public Health Dent. 1991 Summer;51(3):170-7. doi: 10.1111/j.1752-7325.1991.tb02209.x.
This study was conducted to determine whether Venturi Fluoride Saturator (VFS) systems could be used to fluoridate small community and school water supply systems with an acceptable level of maintenance. VFS systems were installed and operated at four school and six community well sites according to state and federal regulations and recommendations. School VFS systems were unable to maintain optimum fluoride residuals even with substantial maintenance. All six community well site VFS systems performed acceptably, with only a few short lapses. VFS system maintenance was labor intensive. Recurring problems were caused by lengthy equipment delivery delays, the unavailability of timely technical assistance to support the VFS system, and the inadequate quality of VFS equipment and design. Based upon these findings, further expansion of the use of VFS systems either for community or school fluoridation cannot be recommended. Additional study of and improvements in the VFS system are indicated. Three major recommendations appear appropriate: (1) extensive laboratory testing of the VFS system concept under controlled conditions should be performed to determine the functioning parameters of this equipment under different hydrodynamic conditions; (2) additional research and development of the VFS unit to improve the quality of operations and the quality control of manufacturing and assembly should be undertaken; and (3) a VFS equipment distribution network should be developed, with sufficient logistical and technical support to supply equipment parts and expertise for installation, monitoring, and maintenance in a timely and efficient manner.
本研究旨在确定文丘里氟饱和器（VFS）系统是否可用于为小型社区和学校供水系统进行氟化处理，并达到可接受的维护水平。根据州和联邦法规及建议，在四个学校和六个社区水井站点安装并运行了VFS系统。即使进行大量维护，学校的VFS系统仍无法维持最佳的氟残留量。所有六个社区水井站点的VFS系统运行情况尚可，仅有少数短暂中断。VFS系统的维护工作劳动强度大。反复出现的问题是由设备交付长时间延迟、缺乏及时的技术支持来维护VFS系统以及VFS设备和设计质量不足导致的。基于这些发现，不建议进一步扩大VFS系统在社区或学校氟化处理中的使用。需要对VFS系统进行更多研究并加以改进。提出三项主要建议似乎是合适的：（1）应在受控条件下对VFS系统概念进行广泛的实验室测试，以确定该设备在不同水动力条件下的运行参数；（2）应开展对VFS装置的更多研发工作，以提高运行质量以及制造和组装的质量控制；（3）应建立一个VFS设备配送网络，提供足够的后勤和技术支持，以便及时、高效地供应设备部件以及安装、监测和维护方面的专业知识。
