Manganese dioxide driven the carbon and nitrogen transformation by activating the complementary effects of core bacteria in composting
| Autor: | Zimin Wei, Xinyu Xie, Xu Zhang, Kejia Kang, Haishi Qi, Xinya Su, Junqiu Wu, Xue Wang, Yue Zhao, Chunhao Zhang, Mingzi Shi, Hongyan Yang, Zhanhai Wu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Environmental Engineering Nitrogen chemistry.chemical_element Bioengineering Manganese 010501 environmental sciences complex mixtures 01 natural sciences Soil 010608 biotechnology Food science Waste Management and Disposal 0105 earth and related environmental sciences chemistry.chemical_classification biology Bacteria Renewable Energy Sustainability and the Environment Composting fungi Oxides General Medicine Biodegradable waste biology.organism_classification Carbon Amino acid Citric acid cycle Manure Transformation (genetics) chemistry Manganese Compounds |
| Zdroj: | Bioresource technology. 330 |
| ISSN: | 1873-2976 |
| Popis: | This study revealed core bacterial metabolic mechanisms involved in carbon (C) and nitrogen (N) in composting with adding MnO2. Two tests (control group (CK), adding MnO2 (M)) were performed. The results indicated that the MnO2 accelerated the transformation of carbon and nitrogen in composting. Core bacteria involved in the C and N conversion were identified, the complementarity effects of core bacteria were stimulated in M composting. Additionally, the influence of core bacteria on the C and N conversion could be divided into two pathways in M composting. One was that core bacteria promoted C and N conversion by accelerating the flow of amino acids into the tricarboxylic acid cycle. Another was that the complementarity effects of core bacteria increased the overall bacterial diversity, which contributed to C and N conversion. These findings showed that the addition of MnO2 to composting was a promising application to treat agricultural organic waste. |
| Databáze: | OpenAIRE |
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