Reduction of GHG Emissions Through the Conversion of Dairy Waste to Value-Added Materials and Products

Caryn Wendt, Ellis Chaston, Donna Post Guillen, Kevin Feris, Erik R. Coats, Armando McDonald

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Dairy operations constitute ∼2.5% of annual U.S. greenhouse gas (GHG) emissions, making dairies one of the largest sources of industrial GHG emissions. We are developing a novel, integrated system to achieve a net reduction in dairy GHGs while producing value-added materials and products. This integrated manure-to-commodities system converts dairy manure to bioenergy, sequesters carbon by converting volatile fatty acid-rich fermenter supernatant to bioplastics, and utilizes anaerobic digester (AD) and polyhydroxyalkanoate (PHA) reactor effluents to produce algae that can be harvested and internally recycled to enhance PHA production and sequester carbon. A decision-making tool is being developed for the integrated system that quantifies net GHG reduction, carbon sequestration, nutrient management and economics.

Original languageAmerican English
Title of host publicationReduction of GHG Emissions Through the Conversion of Dairy Waste to Value-Added Materials and Products
DOIs
StatePublished - 1 Jan 2016

Keywords

  • DAIRIEES
  • carbon sequestration
  • integrated system
  • reduction of GHG emissions

EGS Disciplines

  • Biology

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