Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China; School of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing, 100048, China.
Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China; School of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing, 100048, China.
J Environ Manage. 2024 Nov;370:122799. doi: 10.1016/j.jenvman.2024.122799. Epub 2024 Oct 10.
This work reported the effects of thermophilic bacterial agents on degrading persistent lignocellulose and reducing the loss of valuable nitrogen in kitchen waste (KW) composting. The results showed that thermophilic bacterial compound agents improved the high temperature period by 8 days, and increased the ligninase activity by 0.5-3 times during the composting process. The activity of cellulase increased up to 1 time in agent A (Geobacillus, Clostridium caenicola, Haloplasma) adding group by improving the microbial activity of lignocellulosic degradation metabolic pathways. Nitrogen storage increased to 70% in group added with agent B (Clostridium caenicola, Geobacillus, Clostridium sp. TG60-81) by increasing the population abundance of nitrogen-fixing microorganisms such as Bacillus, Hungateiclostridium and Herbaspirillum, and changed amino acid metabolic pathways. In general, agents A and B could increase the thermophilic phase, optimize the microbial community structure, realize the synergistic humification of carbon and nitrogen, and convert KW into mature and high quality fertilizers.
本研究报道了嗜热细菌制剂对降解持久性木质纤维素和减少厨余垃圾（KW）堆肥中宝贵氮素损失的影响。结果表明，嗜热细菌复合制剂将高温期提前了 8 天，并且在堆肥过程中木质素酶活性提高了 0.5-3 倍。通过提高木质纤维素降解代谢途径的微生物活性，A 剂（地杆菌、产酸克雷伯氏菌、盐单胞菌）添加组的纤维素酶活性增加了 1 倍。B 剂（产酸克雷伯氏菌、地杆菌、梭菌 sp. TG60-81）添加组通过增加固氮微生物如芽孢杆菌、产琥珀酸丝状杆菌和希瓦氏菌的种群丰度，改变了氨基酸代谢途径，使氮素储存增加到 70%。总的来说，A 剂和 B 剂可以提高高温阶段，优化微生物群落结构，实现碳氮协同腐殖化，并将 KW 转化为成熟的高质量肥料。
