Fig. 1: Parameter measurements of the AD chemical process. Different colours represent the three BPs. The Kecskemét biogas plant (KBP) is shown in red, the biogas plant digesting municipal wastewater sludge (MWBP) is shown in blue, and the Szeged biogas plant (SZBP) is shown in green. | The ISME Journal

Fig. 1: Parameter measurements of the AD chemical process. Different colours represent the three BPs. The Kecskemét biogas plant (KBP) is shown in red, the biogas plant digesting municipal wastewater sludge (MWBP) is shown in blue, and the Szeged biogas plant (SZBP) is shown in green.

From: Inter-kingdom interactions and stability of methanogens revealed by machine-learning guided multi-omics analysis of industrial-scale biogas plants

Fig. 1: Parameter measurements of the AD chemical process. Different colours represent the three BPs. The Kecskemét biogas plant (KBP) is shown in red, the biogas plant digesting municipal wastewater sludge (MWBP) is shown in blue, and the Szeged biogas plant (SZBP) is shown in green.

A Results of the standard BMP test measurements of three BPs (see: “AD samples”). B BMP methane yields over the tested periods. C Anaerobic digestion chemical parameters of the sludge from individual BP digesters (C/N carbon to nitrogen ratio, TAN total ammonia nitrogen, VOAs volatile organic acids, TIC total inorganic carbon, TS total solids, VS volatile solids). Mean differences were analysed via ANOVA and considered statistically significant as follows: p < 0.05 (*), p < 0.001 (**), ns no significant difference.

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