In recent years, awareness of the hazardous nature of much of the wastes require capabilities in dealing with hazardous waste treatment problems.
Treatment must be considered after all practical efforts to eliminate the production of waste products have been explored. The treatment technologies that may be employed are as diverse as the range of hazardous materials produced. These technologies may include:
- Carbon adsorption
- Air/stream stripping
- Ion exchange
- Soil flushing/soil washing
- Dissolved air flotation
- Ultraviolet photolysis
- Chemical precipitation
- In situ biodegradation
- Bioreactor/slurry-liquid processing
- Rotating biological contactors
- Rotary kiln incineration
- Circulating bed combustion
- Infrared incineration
- Fluidized bed incineration
- Advanced electric reactor
- Pozzolonic solidification
- Asphalt-based microencapsulation
SPI carefully examines the specific needs of each project and considers all available treatment technologies before selecting the appropriate treatment technology. Frequently, multiple technologies are used to form a single, effective, and efficient treatment process.
SPI's designs include complete specifications of most equipment and materials, as well as a full set of drawings. .
The final design considers all aspects of the problem and the client's needs. Close attention is given to costs and labor requirements and to maintaining a design capable of meeting all regulations and of minimizing the client's future liabilities. If complete recovery or destruction of the hazardous waste cannot be achieved by practical means, feasible disposal alternatives must be considered. The best overall design must also consider the volume and management cost of the treatment residues and effluents.