Dual-Path valorization of organic waste via black soldier fly: Synergistic enhancement of feed efficiency, crop quality, and climate mitigation in closed-loop aquaculture

作者：Longjun Chen, Yu Lin, Xianbo Jia, Xiangzhou Zheng, Yuchen Zhuo, Qianqian Chen, Haiping Fan, Yu Fang, Hui Zhang, Chenqiang Lin · 发表于：Waste Management · 年份：2025 · DOI：10.1016/j.wasman.2025.115186 · 被引用次数：2 · 研究领域：Insect Utilization and Effects、Environmental Sustainability in Business、Animal and Plant Science Education

• Black Soldier Fly larvae convert waste into protein-rich feed, enhancing broiler growth by 7.5%. • Black Soldier Fly frass reduces NH 3 emissions by 34% via pH moderation and nitrification delay. • Frass improves nitrogen retention and nutrient bioavailability. • Frass microbes enhance nitrogen fixation and phosphate solubilization. • Black Soldier Fly compost raises tomato yields by 12.1% and improves fruit quality. The rapid expansion of aquaculture generates vast quantities of hyperhydrated organic waste (e.g., eel feces), posing a severe waste management challenge due to its recalcitrance and high disposal costs. This study presents a circular bio-strategy using black soldier fly (BSF, Hermetia illucens ) larvae to synergistically convert aquaculture waste and agro-industrial residue ( Flammulina velutipes substrate) within a closed-loop system. The process achieved 92.6 % waste utilization efficiency, yielding two valuable co-products: First, BSF larvae accumulated nutrient-rich biomass (17.9 % crude protein, 8.03 % lauric acid). As a 1.0 % supplement in broiler diets, it significantly enhanced feed efficiency by 2.6 % and increased 42-day body weight by 7.5 % (P < 0.01), demonstrating a viable fishmeal alternative. Second, BSF frass was composted into a superior organic fertilizer, which outperformed conventional composting by reducing NH 3 emissions by 34 % (P < 0.001) and increasing total nitrogen retention by 15.3 %, attributed to pH modulation and chitin-NH 4 + co...