Continuous Monitoring of Chlorophenols in Flue Gas from Waste Incinerators by Liquid Chromatography, (I) Investigation of Sampling and Analytical Conditions, and Development of Sequential Automated Monitoring System with a Drain Condensation Trap

Abstract

In order to analyze 11 compounds of dichlorophenols (Di-CPs) and trichlorophenols (Tri-CPs) in flue gas from waste incinerators by using a high performance liquid chromatograph (HPLC) with electrochemical detector (EChD), the collection efficiency with absorption solutions under different conditions, some kinds of the mobile phases with different pH for HPLC, or the different applied voltage for the detection were investigated. Then, the adequate conditions were determined for the analysis of CPs at 0.1-1000ng/m³ in flue gas. In addition, six kinds of the pre-cut column/valves systems examined for continuous CPs analysis. Two types of the sequential full-automated analytical instrument were developed and the usefulness of these instruments was demonstrated in the actual test at waste incinerators. In this paper, the basic data and the experiences related with the analysis or the instruments are described.