Development and application of a multi-channel monitoring system for near real-time VOC measurement in a hazardous waste management facility

作     者：Je, Chung-hwan Stone, Richard Oberg, Steven G. 

作者机构：Univ Nevada Dept Environm Hlth & Safety Reno NV 89557 USA 

出 版 物：《SCIENCE OF THE TOTAL ENVIRONMENT》 (整体环境科学)

年 卷 期：2007年第382卷第2-3期

页      面：364-374页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

主　　题：chemical bulking multi-channel data logger system PID sensor volatile organic compounds walk-in hood 

摘      要：This paper describes the development and application of a multi-channel monitoring system for recording, processing, and analyzing volatile organic compound (VOC) levels discharged to the atmosphere from a walk-in hood in a hazardous waste management facility. The monitoring system consists of an array of PID (photo ionization detector) sensors and a networked control program that provides operational schematic diagram, performs data analyses, and illustrates real-time graphical displays. Furthermore, the system records potential worker exposures, exhaust filtration efficiency and environmental release levels. Multi-channel continuous monitoring of VOCs is successfully implemented during chemical bulking operations. It is shown that a real-time monitoring system is effective for early warning detection of hazardous chemicals and for predicting the performance of adsorption filters used for VOC removal. In addition, a connected local weather visualization system supports efforts to minimize potential health and environmental impacts of VOC emissions to surrounding areas. (c) 2007 Elsevier B.V. All rights reserved.