Woods End Laboratories

Healthy Soil

Healthy Science

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Biogas Potential

biogas potential

Lab Digestion of Biomass for methane production utilizes “GB21″ equipment. Results are possible within 21 days.

Organic by-products that result from agricultural processing in animal or fermentation industries possess potentially high levels of latent energy that is recoverable by methane fermentation. The composition of the byproducts affects the variability of measured energy and the level of difficulty in successful fermentation. These qualities can precisely measured with real-time biogas lab digesters followed by specialized wet chemistry.

Biogas (methane) recovery is a very scalable natural technology. While deployment in America lags behind other nations, ther has been a slow steady upturn as experience grows and risk models are understood. Biogas capture is now seen as having advantages over other forms of organic waste recycling and reuse and is advantageous in combination with composting and biodiesel manufacturing.

Woods End is well-positioned to evaluate and analyze these potentials as the firm has a number of years experience in the USA, Europe and C.A. in analysis and measuring of biogas facilities.

The Bio-Laboratory at Woods End: A well-equipped biolaboratory to perform screening of materials, routine biogas-production runs (lab and pilot scale), gas quality analysis, and digestate stability and end-use tests. The staff are actively involved in a variety of pilot scale trials nationwide. Woods End is experienced in comparing liquid and “dry-fermentation” systems for manures, food scraps, energy crops, silage, DDGS and other “green by-products”. Each test of a material results in a chart showing energy traits and a comparison to hundreds of other materials previously analysed.

Tests performed at Woods End enable operators and designers to properly plan details of engineering, process management end digestate utilization. Call us for a quote on your project, or use our Request for Service form.

biogas potential
Lab Characterization
BMP – Biomethane Potential

  • Biogas Potential: biogas cu.ft./ton
  • Methane Quality: CH4 + CO2 + H2S
  • Mix recipes: effects of hydrolysis
  • Buffering: pH, free carbonates
  • Digestate quality: end-products
  • Nutrients: Agricultural utilization
  • Pathogens: Hygiene quality
Biogas Project Services
biogas potential

  • Lab-scale fermentation; batch and continuous processes
  • Site sampling for gas and digestate
  • Testing biogas prototypes
  • Pilot scale runs with Woods End’s BioTank system (see right)
  • Development of field trials for sustainability of AD digestate
  • Design of end-products from biogas digestors.

The Biogas Test Suite

  • Initial Bioenergy-waste characterization: inc. TS, VS, TN, pH
  • Standardized Biogas GB21 (ÖNORM)§ test: 21-day BMP in pilot reactors;
  • Reports as production rate and cumulative quantity
  • Flux chamber on-farm comparisons
  • Gas Chromatography of CH4 and CO2 and H2S and other odors
  • Biogas Recipe development

§ ÖNORM S 2027-3. Stabilitätsparameter zur Beurteilung von mechanisch-biologisch
vorbehandelten Abfällen: Gasbildung im Gärtest (GB21) ( Standard BMP Method).
Other Methods:
- ISO 13641-2:2003 Water quality – Determination of inhibition of gas production of anaerobic bacteria.
- ASTM D5526 Standard Test Method for Determining Anaerobic Biodegradation of Plastic Materials Under Accelerated Landfill Conditions


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