Because of rapid development in the livestock industry, the production of chicken manure has subsequently increased, which may contribute to environmental pollution. In this regard, in-vessel composting of biochar amended chicken manure and sawdust mixtures was investigated to find out the effect of biochar at the ratios of 0% (control), 3% (T1), 5% (T2), and 10% (T3) on ammonia and greenhouse gases (GHGs) emission, compost quality, pathogenic contaminants and phytotoxicity. The composting process was performed in 100-L, pilot-scale, plastic, cylindrical vessels for 50 days. The addition of biochar (3%, 5%, and 10%) increased the thermophilic temperature with a significant reduction in gaseous emissions (ammonia and CO₂), microbial pathogens (Escherichia coli and Salmonella sp.), and phytotoxicity (Lepidium sativum seed germination assay) compared with that of the control compost products. However, according to the obtained results with in-vessel composting, the amendment of 10% biochar showed the most significant effects concerning the quality of the compost nutrients. The study reveals that the addition of biochar during in-vessel chicken manure composting is beneficial in the reduction of gaseous emissions and pathogenic microorganisms apart from improvement in plant nutrients.

由于畜牧业的快速发展，鸡粪的产量随之增加，可能造成环境污染。在这方面，研究了生物炭改良鸡粪和锯末混合物的容器内堆肥，以找出生物炭在 0%（对照）、3%（T1）、5%（T2）和 10% 比例下的效果(T3) 关于氨和温室气体 (GHG) 排放、堆肥质量、病原污染物和植物毒性。堆肥过程在 100 升、中试规模的塑料圆柱形容器中进行 50 天。生物炭的添加（3%、5% 和 10%）提高了高温温度，同时显着减少了气体排放（氨和 CO ₂）、微生物病原体（大肠杆菌和萨尔monella sp.）和植物毒性（Lepidium sativum种子萌发试验）与对照堆肥产品相比。然而，根据容器内堆肥获得的结果，添加 10% 生物炭的添加物对堆肥养分质量的影响最为显着。研究表明，在容器内鸡粪堆肥过程中添加生物炭除了改善植物养分外，还有利于减少气体排放和病原微生物。