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ANAEROBIC DIGESTER


                       PRODUCTS


                                          Anaerobic Digester



                               Digestate                                Biogas



                                  Animal     Fuel                 Heating      Electricity
                        Fertilizer                                for Farms     from an
                                  Bedding   Pellets
                                                                  or Homes  Energy Company






                       Anaerobic digesters can supply the materials for many
                       products. The biogas can be used for heat and electricity.
                       The digestate can be used as fertilizer, animal bedding, or fuel
                       pellets. Why are all of these products important?




                       methane, a greenhouse gas. Farm animal manure


                       causes 14.5 percent of annual global greenhouse

                       gas emissions.


                            But scientists are working with farmers to solve

                       the issue. The US Environmental Protection Agency


                       set up a program. It builds anaerobic digesters on US

                       farms. An anaerobic digester is a large machine that

                       acts like a stomach. It uses bacteria to break down


                       poop to make biogas. The biogas is then burned to


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          ABD_UNCO_POOP_FPGS.indd   20                                                             2/22/19   9:22 AM
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