Webinar: Anaerobic Digestion – Diagnostics and Prevention of Process Disruption (replica)

On line seminar

Date: 19th Jan. 2021, from 14:00 to 17:00 CET ( held in English)

This seminar is a new session of the one held on 10th December 2020, to accomodate for those who were not able to attend the first session.

Who should participate: consultants, researchers, engineers and anybody engaged in getting the maximum profit from a biogas plant.

Required professional level: participants should have at least some basic knowledge of chemistry and anaerobic digestion technology.


  1. Scope and general vision of this course
  • The most common methods for biogas plant management, and why to avoid them:
  • BMP from tables
  • BMP from theoretical formulas (Buswell, Baserga, pFOM)
  • BMP as a function of the BOD test
  • Titration (a.k.a. FOS/TAC, a.k.a. VFA/TA)
  • Electrical conductivity
  • Control of the digester with pH or ORP electrodes
  • Chemical analysis of the trace elements and (or) inhibitors         

  • Introduction to the rational method for biogas plant management
  • Measurement of the VS (or COD) of the feedstock
  • Measurement of the feedstock’s BMP (a brief comparison between the norms VDI 4630:2006, UNI 11703:2018 and IWA Draft 2016)
  • Measurement of the specific biological activity of the ’inoculum (SMA test and the need for its normalization, hydrolytic, proteolytic and lipolytic activity, comparing additives and pretreatments)
  • Measurement of the digestion efficiency
  • Q&A

  •  Some frequent causes of process disruption and how to avoid them. Some study cases.
  • Laboratory techniques in anaerobic digestion
  • Basics of metrology and error propagation: How to measure accurately even with coarse instruments
  • Difference between accuracy and precision
  • Practical application of the error analysis
  • Measurement devices for the gas flow and volume from fermentation processes
    •  volumetric methods
    •  barometric methods
  • Batch and continuous volumetric methods: when to employ one or the other
  • Hands-on: virtual practice on measuring BMP with the AMPTS II
  • Q&A

Speaker: Prof. Eng. Mario A. Rosato, author of “Managing Biogas Plants – A Practical Guide” (CRC Press, 2017), has a wide ranging experience in anaerobic digestion, with a specific experience in plant diagnostics and process control. As a biogas expert, he actively participated in the working group that created the new UNI 11703:2018 standard for biomethane potential assessment (BMP).

Mario Alejandro Rosato

The registration fee for this webinar is 95€

Registered attendees will receive the password for downloading the recording and presentation slides


Payment details are sent with registration, but can be found here too.

Presentation and recorded session available below, for registered users (password protected)