The Oregon Department of Environmental Quality is taking comment until Nov. 22, with a Nov. 17 local public hearing, on a draft air permit that would allow SORT Bioenergy LLC to build an anaerobic digester solid waste facility that would feed biogas into a 2.4-MW power project.
SORT Bioenergy proposes to accept and anaerobically digest commercial and industrial liquid and solid food waste to produce biogas. The biogas will be combusted to generate electricity. Other byproducts include heat and liquid and solid residues which can be used as fertilizer and soil amendments.
The SORT Bioenergy facility will be located at 10295 SW Ridder Road in Wilsonville adjacent to the Willamette Resources Inc. material recovery and transfer station facility. Biogas produced will be combusted in two generator engines and the electricity produced will be transmitted to the Portland General Electric supply grid.
Food waste (solid and liquid organic waste) from commercial producers including grocery stores, restaurants, and industrial food and beverage processors will be used as feedstock. The throughput is up to 65,000 tons/year. Biogas, biologically produced in an enclosed anaerobic digestion process, will be used to fuel biogas-fired engines that will generate approximately 2.4 MW as well as usable heat. The byproduct heat will be used onsite to heat the anaerobic digester. Additional byproducts include liquid fertilizer, digestate fiber,and process water.
The project includes two Caterpillar CG170-12 engine generator sets, rated at 1,200 kW (1668 bhp) each. The engines are to be spark ignition reciprocating engines fueled by digester biogas.
A project contact is: Paul Woods-President, SORT Bioenergy LLC, 3668 LaFontana Way, Boise, Idaho 83702, phone 208-859-8257, firstname.lastname@example.org.