The effect of carbonate and biochar on carbon and nitrogen losses during composting

文献类型： 外文期刊

第一作者： Wang, Pengcheng

作者： Wang, Pengcheng;Huang, Qiuyun;Xiao, Henglin;Zhang, Zhi;Qiao, Yan;Chen, Yunfeng;Hu, Cheng

作者机构：

关键词： Carbon and nitrogen losses; Carbonate; Composting; Greenhouse gas; Layer manure

期刊名称：JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT （ 影响因子：3.579； 五年影响因子：3.458 ）

ISSN： 1438-4957

年卷期： 2022 年 24 卷 4 期

页码：

收录情况： SCI

摘要： Limited options and high prices have limited the application of additives in composting. The effect of applying carbonate (SRC) and biochar (BC) to composting in a 100 L reactor was evaluated to determine the carbon and nitrogen losses. Three treatments were prepared in a 3:1 ratio of layer manure mixed with cereal chaff: CK (no additive), SRC and BC. These were composted for 30 days. The results showed that both carbonate and biochar increased the average temperature of the thermophilic phase of compost. There were no significant difference in organic matter degradation and nitrogen transformation between SRC and BC treatments. SRC and BC addition did not reduce the total carbon (TC) loss, but BC addition reduced CH4-C loss by 42.9% as compared to CK. In addition, BC reduced total nitrogen (TN) loss by 16.2%, and presented the lowest loss of NH3-N and N2O-N. SRC decreased the N2O-N loss by 33.3% as compared to CK, but the difference was not statistically significant. Therefore, the potential of carbonate in reducing nitrogen loss as a new composting additive is worthy of further research to explore, especially in N2O mitigation.

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