Summary of Hazards Control Department participation in B-624 incinerator miniburn and trial-burn series, January-February 1989.

摘要

In November 1988 we were requested by the Administration and Operations Directorate to observe and participate in the stack-sampling portion of the B-624 incinerator miniburn and trial burn series of January-February, 1989. We procured equipment, conducted a dry run on January 20, 1989. Our sampling of the miniburn series was done in parallel with Acurex. We have compiled a summary of our participation and the results we obtained during our period of testing. We observed a number of procedures in the stack-sampling chemistry that were inconsistent with the Quality Assurance Project Plan (QAPP) of November 16, 1988 or Revision 1 of that document dated January 11, 1989. In this miniburn series, three Principal Organic Hazardous Constituent (POHC) feeds were incinerated. These were formaldehyde, formic acid, and phenol. During a burn, concurrent stack gas samples were withdrawn by the Acurex and LLNL sampling crews. In many cases, samples were split and analyzed by both the Acurex Laboratories and the LLNL Chemistry Department. Samples taken by the LLNL sampling team and analyzed by LLNL yielded destruction and removal efficiencies (DREs) in excess of 99.999% for all POHC burns. A minimum DRE of 99.99% is required by the government agencies. Samples taken by and analyzed by Acurex were greater than 99.99% except for two formaldehyde burns. The lower-than-acceptable DREs were attributed to deviations in the QAPP, and were rectified in later testing. By far the most difficult part of the stack-sampling chemistry is that used for the collection and analysis of formaldehyde. A bibliography of pertinent literature on the subject is included. We have summarized the equipment used during this period of stack sampling for the convenience of the Environmental Protection Department if that capability is needed in the future. A detailed description of the equipment operation and performance is included here.