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Volatilization is a valid concern in the solidification of wastes containing organics. In the presence of strongly adsorbing substances, however, even volatile compounds may not rule out solidification. In order to distinguish between wastes having negligible emissions and those from which emissions may be problematic, a definition of a “volatilization potential” and a method of determining this potential is needed. The assessment method can be based on the emission rate measured in a standardized laboratory setup.
This paper begins to develop a laboratory setup and a reference framework for the interpretation of the measured emissions from sludges. A “volatilization quality index” is derived, which can be used to evaluate and rank the potential of volatilization from sludges during mixing operations. This quality index is related to the measured emissions from an organic sludge taken from a waste site. The implications of the experimental results are related to practice.
volatilization, emissions, test procedures, solidification, stabilization, immobilization, hazardous waste, toxic waste, waste treatment, treatability studies, equipment design
Project Engineer, DuPont Environmental Remediation Services, Wilmington, DE
Research Fellow, DuPont Central Research and Development, Wilmington, DE
Research Professor, University of CincinnatiCenter for GeoEnvironmental Science and Technology, Cincinnati, OH