Stabilization/solidification of wastes containing volatile organic compounds in commercial cementitious waste forms.

摘要

Stabilization/solidification (S/S) is one of the most widely used techniques for the treatment and ultimate disposal of both radioactive and chemically hazardous wastes. But does not have regulatory approval for treating organics. Application with volatile organic compounds (VOC) is particularly controversial since it was believed that the necessary mechanical mixing and exothermic cementitious reactions would vaporize the VOC. The objective of this study was to establish whether S/S is a viable alternative for a sludge heavily contaminated (about 1%) with relatively immobile metals, but lightly contaminated (50% of the VOC was retained in the laboratory preparation of cementitious samples cured for 28 d. The performance tests indicated the commercial products could attain leachability indexes from 7 to >9 for the eight VOC studies and distribution coefficients of >10 could be attained for all eight and >100 for some compounds. 6 refs., 9 tabs. (ERA citation 15:034110)