May/June 2019 (Vol. 60, No. 4)

  • Allen Farms installed an anaerobic digester consisting of two fermentation vessels. Manure, used bed pack and crop residues from the 130-cow dairy operation are processed.

    Small-Scale Dairy Digester Fits The Bill

    Wisconsin farm digester processes 82 percent manure, 12 percent bed pack/manure,
    and 6 percent food waste.
    Dan Emerson
    BioCycle May/June 2019, Vol. 60 No. 4, p. 36

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  • The City of Longmont, Colorado expects to be fueling 11 new collection vehicles by the end of 2019 with RNG from the biogas generatedat the city’s wastewater treatment plant.

    Fueling Trash Trucks With RNG

    Replacing 90,000 gallons of diesel fuel with RNG will reduce greenhouse gas emissions by about 1,000 metric tons of carbon dioxide equivalents annually.
    Marsha Johnston
    BioCycle May/June 2019, Vol. 60 No. 4, p. 38

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  • The first component of the certificate program introduces students to fundamentals of organic agriculture through classroom lessons.

    Power Of Sustainability To Change Inmates’ Lives

    Collaborative noncredit certificate program provides experiential learning in composting, urban greening and sustainable land care to low-risk inmates in the Philadelphia prison system.
    James F. Duffy
    BioCycle May/June 2019, Vol. 60 No. 4, p. 32

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  • Kate Bailey

    Commentary: Dear Plastics Industry — We Are Headed For A Divorce

    Kate Bailey
    BioCycle May/June 2019, Vol. 60 No. 4, p. 39

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  • Smalis Conveyors custom builds conveyors to fit a recycler’s specific needs.

    Equipment News

    BioCycle May/June 2019, Vol. 60 No. 4, p. 40

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