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AD contains methane emissions Use of digestate as a contribution to fertiliser offsets fossil fuel consumption in the production of synthetic fertiliser. Decreased synthetic fertilizer use also reduces N2O emissionsH      >X  ? A(Improved Waste Management0Waste easier to manage Reduction in BOD Reduction in VFA (Important for Swine Waste) Reduced handling cost - solids separated and sold/used ( fibre replaces strategic peat reserves)  Better Crop Response  <,Odor Reduction<Up to 80% reduction in odor based on data from various sources Beats litigation! (Retainers on this issue vary between $10K and $50K) -Weeds and Seeds<Partial to complete destruction of weed seeds and various disease Need to be careful with digester inputs (i.e. no antibiotics or other chemicals)$.Financial Benefits<(Byproducts Liquids (crop response)  Fibre (Solids) Electricity depending on Co-op - may be able to sell power Thermal Recovery Offset heating costs ) /  )  /     $l/ Regulatory Benefits<Considered a mitigation measure under the environmental review process NPDES Permits - Case by Case Basis (General v. Individual)$0! Conclusions <Substantial and quantifiable environmental benefits are achievable with AD Design and Construction Costs can be offset by benefits with the right system Still an emerging technology despite nearly 50 years of experience Public Perception is a major benefit! /l#1234 5 6 7 8 9:PJ  ` ̙33` ` ff3333f` 333MMM` f` f` 3>?" dd@,?lKd@   d lA@  d`"  n?" dd@   @@``PR    @ ` ` p>>0u 0 VN(  28 y yj   :B7 C DEHFP @1?q 6 6 n(dx  G b q %(@B yx2  HG1?   `XXSxaxa1 ?P S T Click to edit Master title style! !@  ZZSxaxa1 ? S RClick to edit Master text styles Second Level Third Level Fourth Level Fifth Level!     S`  Hd޽h @ ? i(3e soarings 0 [Sp(  p  01 ?   6A  ZH/6xaxa1 ? @ 6 SClick to edit Master notes styles Second Level Third Level Fourth Level Fifth Level"     TB  s *޽h ? a(  0(   B  s *޽h ? a(.0u  V(    T,6xaxa1?1 m#Minnesota Pollution Control Agency .$(2"66  TA ?1? CX $ 0 0p  HA1?    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