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Fig. 1 | Biotechnology for Biofuels

Fig. 1

From: Trace element and temperature effects on microbial communities and links to biogas digester performance at high ammonia levels

Fig. 1

Methane production and hydrogen partial pressure after feeding of the continuous laboratory-scale digesters. The kinetics of methane production in the anaerobic digesters was estimated after a 20, b 160 and c 311 days of operation, in order to represent operating period 1, 2 and 3, respectively. The relative hydrogen partial pressure in the digesters was analysed on days b 160 and c 311

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