Co-treating of chicken manure with wet market waste by black soldier fly larvae for synergetic bioconversion enhancement and gas reduction

IF 6.7 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation Pub Date : 2025-05-24 DOI:10.1016/j.eti.2025.104283

Liwen Wang , Guoyan Zhang , Yiwei Dong, Shuaixin Tian, Zhipeng Wu, Hongliang Wang

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引用次数: 0

Abstract

Adding organic wastes to chicken manure (CM) for co-digestion by black soldier fly (BSF) larvae is an effective means to improve the efficiency of manure degradation and bioconversion, but the trade-off in carbon (C) and nitrogen (N) distribution and environmental impact is still unclear. Six substrates were provided for BSF bioconversion: CM (control), vegetable waste (VEG), slaughtered chicken waste (SCH), discarded fish organs (DFI), the mixture of CM, VEG, and SCH with a 1:1:1 ratio (Mix1) and the mixture of CM, VEG, and DFI with a 1:1:1 ratio (Mix2). The effects on BSF growth performance, nutrient accumulation and environmental emissions were examined. In comparison with CM, VEG reduced 29.65 % of NH₃ emission, but the larvae yield (13.04 %) and nutrient accumulation were also decreased. Final larvae weight (16.20 % and 41.52 %) and survival ratio (26.00 % and 25.78 %) in animal-waste (SCH and DFI) treatments were improved, whereas the NH₃ (SCH) and CO₂ (DFI) emissions were significantly increased. Mix1 and Mix2 greatly improved the larval conversion efficiency and frass maturity, while reducing NH₃ emission (24.45 % and 14.08 %) and GHG emissions (38.42 % and 56.38 %). In addition, the mixed substrates (Mix1 and Mix2) exhibited superior performance in enhancing larval protein (2.93 % and 14.52 %) and biomass yield (75.99 % and 101.07 %) compared to CM. The quantitative distribution of C and N nutrients indicated that Mix1 was functional in gas mitigation, while Mix2 in insect biomass accumulation. In conclusion, co-conversion of CM with VEG and DFI is critical for synergistic emission reduction and nutrient accumulation in the BSF system.

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黑虻幼虫协同处理鸡粪与菜市场垃圾，增强生物转化，减少气体排放

在鸡粪中添加有机废物供黑兵蝇（BSF）幼虫共消化是提高鸡粪降解和生物转化效率的有效手段，但碳(C)和氮(N)分布与环境影响之间的权衡尚不清楚。试验提供了6种培养基用于BSF生物转化：对照培养基（CM）、蔬菜废弃物（VEG）、屠宰鸡废弃物（SCH）、废弃鱼脏器（DFI）、1:1:1比例的CM、VEG和SCH的混合物（Mix1）和1:1:1比例的CM、VEG和DFI的混合物（Mix2）。研究了对奶牛生长性能、养分积累和环境排放的影响。与CM相比，VEG降低了29.65 %的NH3排放量，但也降低了幼虫产量（13.04 %）和养分积累。动物粪便（SCH和DFI）处理显著提高了末仔鱼体重（16.20 %和41.52 %）和成活率（26.00 %和25.78 %），显著增加了NH3 （SCH）和CO2 （DFI）排放量。Mix1和Mix2显著提高了幼虫转化效率和幼虫成熟度，同时降低了NH₃排放量（24.45 %和14.08 %）和温室气体排放量（38.42 %和56.38 %）。此外，混合底物（Mix1和Mix2）在提高幼虫蛋白质含量（2.93 %和14.52 %）和生物量产量（75.99 %和101.07 %）方面均优于CM。C和N养分的定量分布表明，Mix1具有气体减缓功能，而Mix2具有昆虫生物量积累功能。综上所述，CM与VEG和DFI的协同转化对BSF系统的协同减排和养分积累至关重要。

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来源期刊

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.