Free or Volatile Fatty Acids (VFA)

Typical anaerobic digester monitoring usually consists of daily analysis of  pH, alkalinity and volatile fatty acids (VFA). Online VFA analysers ensure increased monitoring to identify issues and potentially increase performance and energy recovery.

Free fatty acids (FFA) are produced by the hydrolysis of oils and fats. As FFA are less stable than neutral oil, they are more prone to oxidation and to turning rancid. Thus, FFA concentration is a key feature linked with the quality and commercial value of oils and fats.

Online analysis of free fatty acids and volatile fatty acids is typically carried out via titration.

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Products for this application


An industrial titrator for online free or volatile fatty acids monitoring.

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