Across the country, communities struggle with managing fats, oils, and grease (FOG) generated by restaurants and food processors. While many municipalities have FOG abatement programs, disposal options remain limited. This leaves haulers under pressure to find solutions, often resulting in landfill disposal or delivery to wastewater treatment plants (WWTPs). Unfortunately, landfill disposal wastes a valuable resource and produces methane emissions, while untreated FOG at WWTPs creates costly maintenance challenges.

Greasezilla™ introduces a sustainable alternative by transforming FOG into a resource. Its advanced separation technology extracts brown grease—a high-value biofuel feedstock for renewable diesel and sustainable aviation fuel (SAF)—while reducing the remaining water to a low-BOD, low-TSS effluent that can be safely treated at WWTPs.

The process is straightforward. Upon arrival at a Greasezilla facility, FOG is screened to remove grit and solids, then transferred to decant tanks for stratification. Water is separated and returned to the WWTP headworks, while the concentrated FOG undergoes thermal separation in the Greasezilla system. This produces three layers:

• Brown grease – automatically recovered and stored for biofuel feedstock sales

• Batter – suitable for composting, blending with municipal solid waste, or digestion

• Effluent water – clean enough for standard treatment by converting waste into a marketable product, Greasezilla helps communities cut disposal costs, reduce environmental impact, and support renewable fuel production.

Core Value Proposition

Greasezilla offers a turnkey, scalable solution for the recovery and separation of brown  grease—turning a costly waste problem into a profitable clean fuel opportunity. The system  delivers high Return on Investment (ROI) through tipping fees and the sale of advanced  biofuels.

Key Features

• High Throughput: Processes up to 60,000 gallons/day
• Fully Automated: SCADA & sensor-driven system
• Energy Efficient: Powered by reclaimed biofuel or gas
• Compact & Modular: Fits within 2,000 sq ft footprint
• Scalable: Interior or exterior deployment options
• Environmentally Sustainable: Diverts waste from landfills and reduces methane emissions

Strategic Relevance

Greasezilla is aligned with growing demand for renewable diesel, SAF (Sustainable Aviation  Fuel), and marine fuels, offering: 

• Compliance with IMO, RFS, LCFS 
• Eligibility for RINs, 45Z, and IRA tax incentives 
• Use of low Carbon Intensity (CI) feedstocks like brown grease and UCO