Ammonia nitrogen(NH3-N) content was examined using thespectrophotometer (HACH, DR/2500). The compositionof methane in the biogas produced was analyzed using agas chromatography equipped with a thermal conductivity
Ammonia nitrogen(NH3-N) content was examined using thespectrophotometer (HACH, DR/2500). The compositionof methane in the biogas produced was analyzed using agas chromatography equipped with a thermal conductivity