College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China; Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden.
Bioresour Technol. 2019 Nov;291:121845. doi: 10.1016/j.biortech.2019.121845. Epub 2019 Jul 19.
Present study was focused on to evaluate the effectiveness of increasing bamboo biochar (BB) (0%, 2%, 4%, 6%, 8% and 10%) amendment on volatile fatty acids (VFAs) degradation and humification, as well as correlation with interrelated physicochemical parameters during chicken manure (CM) composting. The results showed that the extended thermophilic period and higher humic acid/fulvic acid ratio as well as richness bacteria community during CM composting. In addition, lower quantities of VFAs and odor generation with elevated biochar concentration. Redundancy analysis also supported that 10% BB has strong correlation with physicochemical parameters than other treatments. Overall, the 10% BB amendment could stimulate microbial activities to accelerate the organic waste degradation, reduced VFAs and odor emission so that improve hygiene and end product quality. It is notably assessed that application of 10% BB additive were optimal feasible and effectively channel for disposal of manure.
本研究旨在评估增加竹生物炭（BB）（0%、2%、4%、6%、8%和 10%）对鸡粪（CM）堆肥过程中挥发性脂肪酸（VFAs）降解和腐殖化的有效性，以及与相关理化参数的相关性。结果表明，在 CM 堆肥过程中，延长了高温期，腐殖酸/富里酸比值更高，细菌群落丰富。此外，随着生物炭浓度的升高，VFAs 的数量减少，气味产生减少。冗余分析也表明，10%的 BB 与理化参数的相关性比其他处理更强。总的来说，10%的 BB 添加剂可以刺激微生物活动，加速有机废物降解，减少 VFAs 和气味排放，从而提高卫生和最终产品质量。值得注意的是，应用 10%的 BB 添加剂是处理粪便的最佳可行和有效途径。
