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Updated: Feb 11, 2026

Transformation of Organic Household Leftovers into a Peat Substitute
Published on: July 9, 2019
Transformation of organic nitrogen fractions with different molecular weights during different organic wastes
Haixuan Zhou1, Yue Zhao1, Hongyu Yang1
1College of Life Science, Northeast Agricultural University, Harbin 150030, China.
Abstract:
This study aimed to investigate different transformation mechanisms of organic nitrogen (N) fractions during composting with different raw materials, and the contributions of bacterial communities and environmental factors to organic N fractions transformation. The results showed that high molecular weight organic N was first degraded to low molecular weight organic N and then turned into NH4+ during chicken manure composting. In comparison, organic N fractions were stored in composts rather than mineralization during garden waste and municipal solid waste composting. Meanwhile, bacterial communities, environmental factors and the combination of them were the main drivers of N transformation during chicken manure, municipal solid waste and garden waste composting, respectively. In conclusion, the proposed organic N transformation mechanisms in this study provided a theoretical basis for improving the quality of compost products.
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