Fig. 1From: Hyperthermophilic pretreatment composting can reduce ammonia emissions by controlling proteolytic bacterial community and the physicochemical propertiesThe nitrogen loss (a), nitrogen balance (b), NH3 flux rate (c) and cumulative NH3 emission (d) during traditional composting (TC) and hyperthermophilic pretreatment composting (HPC). The “UN”represent unclassified nitrogen, the WISN represent the water-insoluble nitrogen, the WSON represent the water soluble organic nitrogenBack to article page