Project Info

Project Title 
Project Number 
Project Year(s) 
2005 - N/A

Project Description: The purpose of this project is to develop energy-efficient processes that reduce the cost and energy consumption associated with the treatment and disposal of industrial, commercial, and residential waste streams. Major activities under this project are placed in two categories. The first focuses on a cement-lock technology process that will convert contaminated sludge into environmentally safe cement. This technology could reduce the disposal cost of contaminated materials by $25 per ton. The second, an advanced Thermo-Depolymerization (TDP) process to convert organic waste into graphite and oil for industrial and commercial use, is in the early stages of development. If successful, a pilot test facility will develop data for full-scale waste reduction in food processing, petroleum, tires, plastics, municipal solid waste, sewage sludge, and animal husbandry.

This project supports the PIER Program objectives of:
• Improving the environmental and public health costs/risks of California's electricity by providing a process to convert contaminated sludge into environmentally safe cement.
• Improving the energy cost/value of California's electricity by reducing the energy used for disposal of contaminated sludge and organic waste by California energy consumers.

Proposed Outcomes:
• TDP: Demonstrate the technical feasibility of direct conversion of organic wastes in the food, paper/pulp and tire industry to middle distillates, fatty acids and power.
• Sewage Sludge: Design and construct a two-ton per day pilot plant for converting sewage sludge in the Seattle area.
• Cement Lock: Produce a validated cement-locking process technology for a variety of contaminants and a first commercial site to prove the technology. Conversion of Resource Recovery and Conservation Act (RCRA) class III estuarine sediments to Portland cement.
Actual Outcomes:
• TDP: A 7.5 tons per day (tpd) pilot facility located in the Philadelphia Navy Yard is operational and turbines are connected to the grid.
• Sewage Sludge: GRI, microGas, Inc. and the city of Seattle teamed to build a 2 tpd pilot unit. The unit is operational. Data is being collected and the technology is under evaluation by the city of Seattle for incorporation into their Reton facility.
• Cement Lock: A demonstration facility has been sited in New Jersey during the fourth quarter of 2000. The first commercial unit has been sold to Taiwan.

Project Status: This project is complete.