Changing regulatory requirements drive the development of innovative technologies for cleaning up existing sites and treating wastes being generated, while minimizing future waste production. Hazen recognizes that successful treatment technologies must also be economically favorable.
We investigate and develop processing technologies for the remediation and recycling of waste materials. The critical first step in treatment technology development is waste characterization. Proper characterization of a waste includes determining both the chemical and physical properties of the material. To characterize a waste, Hazen follows standard analytical procedures, including those published by EPA and ASTM, for evaluating hazardous or nonhazardous waste materials. Waste characterization procedures identify important process baseline information that will be needed in the selection of the appropriate remediation methods. These methods may include, for example, any combination of technologies such as high- and low-temperature thermal treatment, chemical leaching, soil washing, and physical separations, waste stabilization, and bioremediation. Another important aspect of waste characterization studies is the valuable information that is provided prior to pilot testing of potential or selected remediation treatment technologies, particularly the associated and critical materials-handling requirements.
During pilot plant testing, materials-handling problems are identified, then solutions to these problems are developed and demonstrated while the process flow sheet is being evaluated. This information is essential for designing a waste remediation process that is both efficient and economical at the commercial level. Hazen's waste characterization capabilities are listed below. These procedures apply to both hazardous and nonhazardous wastes and cover a wide range of measurements necessary for developing the design of a remediation process.
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