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Fig. 2 | Biotechnology for Biofuels and Bioproducts

Fig. 2

From: Potential of acetic acid to restore methane production in anaerobic reactors critically intoxicated by ammonia as evidenced by metabolic and microbial monitoring

Fig. 2

Progress over time of: a total ammonia nitrogen (TAN) measured; b pH; c free ammonia nitrogen (FAN) calculated; d acetate; e total inorganic carbon (TIC); f total solid (TS) content in the slurry of the reactors; g mass of sugar beet pulp (expressed in volatile solids, VS) introduced weekly into the reactors and their weekly biogas production. The decrease in biogas production observed during week 10 for the LNR reference reactor is due to a reduced pulp input in weeks 9 and 10 (only three feeding days per week). “Process reconditioning I, II, III”, “Process recovery” and “Process stability test” refer to the stages and phases described in Table 1. HNR: free ammonia intoxicated reactor

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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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