Digested Organics – BioEliminator

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Digested Organics – BioEliminator

Harvest Energy | Capture Nutrients | Reclaim Water™

Company Description:

Digested Organics was founded in 2013 in Ann Arbor, Michigan by a team committed to changing the way our society manages waste. Businesses in all sectors of our economy tend to create some unwanted material considered to be waste, and when deciding what to do with it, they typically have two goals in mind: minimize costs and reduce environmental impact.

 

Digested Organics mission is to empower businesses to reclaim their waste. They focus on the conversion of organic wastes, such as food scraps, manures, greases and oils, and high strength wastewater, into clean water and clean energy using their proprietary BioEliminator™ technology and Nutrient Concentration & Water Reclamation (NCWR)™ System.  They have a scalable, modular systems that allows them to help both small and large operators, and they approach every client’s situation as a unique case that requires dedicated evaluation and customized solutions.  When it comes to waste management, there is no one-size-fits-all solution; rather, they size and configure a system for each client’s particular needs to minimize waste-associated costs, maximize value generation, and protect the environment.

 

In an era when landfills are quickly running out of space, waste hauling is becoming increasingly expensive, new legislation is banning the disposal of organics in landfills, and watersheds are stressed by excessive amounts of nitrogen and phosphorus, Digested Organics feels they have a solution to address the growing demand for smarter, less expensive, and greener waste management.  They hope to put their passion for waste management to work for you!

Technology Description:

The BioEliminator is a hybrid plug-flow attached-growth anaerobic digester that quickly and efficiently produces biogas. Typically, Digested Organics designs manure digesters with a 5-day retention time or less, which is about one fifth the size most other digesters, meaning Digested Organics provides a lower cost solution. The Digested Organics system retains the biogas-producing microbes inside the digester so they more efficiently digest the waste. Biogas is typically 65-70% methane content and low in H2S.

Digested Organics 14601 Keel St. Plymouth, MI USA 734-545-8016 Visit Company Website

Technology Type

  • Anaerobic Digestion

Vendor

  • Project Developer

Product

  • Energy

Problem

  • GHG
  • Odor
  • Pathogens

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Technology Strengths, Weaknesses and Critical Indicators

Anaerobic Digestion:

  • Long usable life and can be run reliably
  • Creates energy and generates environmental credits
  • Proper feeding & system monitoring is required to avoid system downtime
  • Proven technology for odor control
  • Proven technology for GHG reduction
  • Proven technology for pathogen reduction
  • Different types of systems produce varying gas production rates
  • Requires proper preparation of the feedstock
  • Requires other technologies for energy utilization
  • Requires other technologies for digestate handling
  • Requires other technologies to prevent nitrogen loss
  • Complex systems may require expertise not available on-farm

Newtrient Comments/Opinions:

Anaerobic Digester technology:

  • Is proven technology for odor, GHG and pathogen reduction and energy production
  • Has a long usable life and can be run reliably
  • Require proper preparation of the feedstock
  • Usually requires other technologies for energy utilization
  • Usually requires other technologies for digestate handling
  • Proper feeding & system monitoring is required to avoid system downtime
  Digested Organics LLC has developed an innovative anaerobic digester and nutrient recovery system capable of producing discharge quality water.  The system, which requires the removal of coarse solids prior to treatment, uses a fixed film anaerobic digester to stabilize the manure before ultrafiltration is used to concentrate fine solids and phosphorus.  After the fine solids and phosphorus are removed, ammonia is stripped out leaving water which is then disinfected for reuse or discharge.  

The Digested Organics system is a modular design allowing for easy scaling.  Due to the removal of coarse solids and short retention time, the digester may produce less biogas compared to other digester technologies treating whole manure.  

In 2015, Digested Organics installed a fully integrated and modular manure treatment system (IMMS) that harvests energy and generates biogas, concentrates and captures nutrients for crops and reclaims clean water for farm use at Majestic Crossing Dairy near Sheboygan Falls, WI.  The system was updated and refined in late 2016 to improve performance.  The system treats 20,000 gpd, equivalent to the manure and wastewater production of approximately 650 dairy cows.  

Newtrient will continue to work with Digested Organics to understand their digester/nutrient recovery system and refine the cost and performance information on the existing dairy farm installation.

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