Project List – Biogas / Anaerobic Digestion / Composting

Westminster Farms (Westminster, VT)

  • Prepared a feasibility study for the USDA Rural Development Grant/Loan application for upgrades from a 225 kW to a 450 kW modified plug flow anaerobic digester facility to handle cow manure from 100 additional (700 vs. 600) dairy cows and material handling and feeding of additional food waste and source-separated organics feedstock; Project Manager.

Vermont Technical College (Randolph, VT) – (As a sub-consultant to Bio-Methatech)

  • Provided initial technical assistance and contractor and supplier RFP/selection services for a complete mix anaerobic digester facility to handle cow manure from the VTC dairy farm, source-separated organics, cafeteria food waste and crop feedstock with biogas that fuels a 375 kW CHP generator set and provides process heat and excess heat for the VTC heating plant. Also includes a solids separator system that produces animal bedding to replace purchased bedding; FCE Project Manager.

University of Vermont (UVM), Burlington, VT

  • UVM Miller Farm Anaerobic Digester Feasibility Study- Looked at cow and horse manure plus food waste (from the UVM cafeterias) and other on-campus organics to feed an anaerobic digester to provide heat for adjacent buildings and to power a 100 kW generator.
    • Phase I- Selected as one of two firms hired for feasibility studies to each study three technologies and prepared report with rating and ranking of three technologies; Project Manager.
    • Phase II- Selected as only firm to prepare Phase II feasibility study on overall selected technology and prepared report describing the layout, costs and feasibility of the selected technology; Project Manager.

City of Taunton, MA/Mass DEP

  • Source-Separated Organics/Food Waste Anaerobic Digester and Composting Feasibility Study
  • Prepared a feasibility study for a complete mix anaerobic digester facility to handle 360 tons/day (130,000 tons/year) of source-separated organics/food waste and to produce 3.5 MW of energy and ~10,000,000 btu/hr for process heat and for heat for nearby buildings; Project Manager.
  • Prepared a feasibility study for an aerated static pile compost facility to handle 360 tons/day of dewatered source-separated organics/food waste digestate and 170 tons/day of yard waste to produce valuable compost products; Project Manager.

Town of Stowe, VT

  • Process design team member at Value Engineering Workshop for new 0 mgd SBR wastewater treatment facility with tertiary filtration, UV disinfection, autothermal thermophillic aerobic digestion (ATAD) and centrifuge sludge dewatering; Project Manager.

Spruce Haven Farm, Fleming, NY (As subconsultant to Larsen Engineers, Rochester, NY)

  • Providing process enhancements and start-up assistance for partial mix covered lagoon anaerobic digester system to handle cow manure from 1,660 milking cows, 1,500 heifers and 200 dry cows with biogas that fuels a 500 kW CHP generator set and provides 1,700,000 Btu/hour of thermal energy for process heat and excess heat for nearby buildings. Also includes a solids separator system that produces animal bedding to replace purchased bedding and a sand separation system to remove the sand from the manure for the digester feed and to reuse the sand bedding; Project Manager.

Town of Springfield, VT

  • Construction phase, first year, start-up and operator training services for 1.4 mgd Conventional Activated Sludge WWTF expansion/upgrade including anaerobic selectors for biological nutrient removal, sludge dewatering and anaerobic digester additions and upgrades; Project Associate/Project Manager.
  • Construction phase, first year, start-up and operator training services for upgrades to the aerated static pile composting facility including solid waste full certification; Project Associate/Project Manager.