Now showing items 1-5 of 5

  • Anaerobic co-digestion on dairies in Washington State : the solid waste handling permit exemption 

    Yorgey, Georgine; Kruger, Chad E.; Steward, Kara; Frear, Craig, 1964-; Mena, Nora (Pullman, Washington : Washington State University Extension, 2011-11)
    This factsheet briefly reviews the role of co-digestion within anaerobic digestion (AD), explains the potential regulatory concerns, and details the solid waste handling permit exemption conditions. An overview of other ...
  • Anaerobic digestion effluents and processes : the basics 

    Mitchell, Shannon M.; Kennedy, Nicholas; Ma, Jingwei; Yorgey, Georgine; Kruger, Chad E.; Ullman, Jeffrey L.; Frear, Craig, 1964- (Pullman, Washington : Washington State University. Extension., 2015-09)
    Anaerobic digesters are used worldwide to produce bioenergy and sustainably treat organic waste from municipal, industrial, and agricultural operations. This fact sheet reviews the basic elements of anaerobic digestion and ...
  • Approaches to nutrient recovery from dairy manure 

    Frear, Craig, 1964-; Yorgey, Georgine; Ma, Jingwei (Pullman, Washington : Washington State University Extension, 2018-02)
    To support dairy, dairy-allied industry, and agency knowledge and decision-making, this paper provides an overview of the major nutrient recovery (NR) approaches now emerging or in use for recovery or removal of P, N, K, ...
  • Completing a successful feasibility study for an anaerobic digestion project 

    Jensen, Jim; Frear, Craig, 1964-; Kruger, Chad E.; Yorgey, Georgine (Pullman, Washington : Washington State University Extension, 2018-01)
    Today, anaerobic digesters require significant up-front expenditures. As the cost and complexity of anaerobic digesters has grown, so has the demand for analysis of the technical systems and the financial costs and benefits. ...
  • The dairy bio-refinery 

    Yorgey, Georgine; Frear, Craig, 1964-; Kennedy, Nicholas; Kruger, Chad E. (Pullman, Washington : Washington State University Extension, 2019-03)
    Anaerobic digestion is a notable waste management technology that produces renewable energy while improving livestock manure management. The process reduces the release of greenhouse gas emissions (GHGs), volatile organic ...