- Author
- Cooke, M. | DeRoos, F. | Rising, B.
- Title
- Hot Flue Gas Spiking and Recovery Study for Tatrachlorodibenzodioxins (TCDD) Using Modified Method 5 and SASS Sampling with a Simulated Incinerator.
- Coporate
- Battelle-Columbus Labs., Columbus, OH
- Sponsor
- Industrial Environmental Research Lab., Research Triangle Park, NC
- Report
- EPA-600/2-84-159; EPA-600/13, October 1984, 35 p.
- Contract
- 68-02-2686,TASK-131
- Keywords
- pollution
- Abstract
- The report gives res ults of an evaluation of the sampling and analysis of ultratrace levels of dibenzodioxins using EPA's recommended source sampling procedures (Modified Method 5 (MM5) train and the Source Assessment Sampling System--SASS). A gas-fired combustion system was used to simulate incineration flue gas, and a precision liquid injection system was designed for the program. The precision liquid injector was used to administer dilute solutions of 1,2,3,3,4-tetrachlorodibenzop-dioxin (1,2,3,4-TCDD) directly into a hot--260 deg. C (500 deg. F)--flue gas stream. Injections occurred continuously during the sampling episode so that very low gas-phase concentrations of 1,2,3,4-TCDD were continuously mixed with the flue gases. Recoveries were measured for iight burn experiments. For all but one, the recoveries could be considered quantitative, demonstrating efficient collection by the EPA sampling systems. In one study, the components and connecting lines from a sampling device were analyzed separately to show where the 1,2,3,4-TCDD deposited in the train.