Industrial Uses (Fats, Oils, and Grease)
Fats, Oils, and Grease Resources
Liquid fats and solid meat products are materials that should not be sent to landfills or disposed of in the sanitary sewer system. Fats, oils, and grease (FOG) can clog pipes and pumps both in the public sewer lines as well as in wastewater treatment facilities. This prevents combined sewer overflows, which protects water quality and lowers bills. FOG should be sent to the rendering industry to be made into another product, converted to biofuels, or sent to an anaerobic digester.
Ways to Recycle FOG
Liquid fats and solid meat products can be used as raw materials in the rendering industry, which converts them into animal food, cosmetics, soap, and other products. Many companies will provide storage barrels and free pick-up service.
Converting FOG to Biodiesel
FOG are collected and converted by a local manufacturer into environmentally friendly biodiesel fuel. Biodiesel is an alternative fuel produced from renewable resources such as virgin oils (soybean, canola, palm), waste cooking oil, or other biowaste feedstock. Biodiesel significantly reduces greenhouse gases, sulfur dioxide in air emissions, and asthma-causing soot. Along with creating less pollution, biodiesel is simple to use, biodegradable and nontoxic.
Adding FOG to Wastewater Treatment Plant Digesters
FOG can be added to anaerobic digester at waste water treatment plants to generate renewable energy in the form of biogas.
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- Pacific Biodiesel in Hawaii converts recycled cooking oil into fuel that powers generators, commercial equipment, vehicles, and marine vessels. Biodiesel production diverts cooking oil from landfills, while its use reduces emissions of major greenhouse gases and substances such as carbon monoxide, carbon dioxide, volatile organic compounds, hazardous diesel particulates, and the acid-rain-causing sulfur dioxide. Learn more (PDF) ( 1 p, 310.99k)
- The wastewater treatment plant in Millbrae, CA turns kitchen grease into renewable energy by adding it to its anaerobic digester. By adding restaurant grease to the digesters, the wastewater treatment plant is able to power 80% of its on-site energy needs. Learn more