中国农学通报2025，Vol.41Issue(27)：71-78,8.
蚯蚓与生物炭耦合堆肥对污泥有机组分分解过程的影响
Effect of Earthworm and Biochar Coupled Composting on Decomposition Process of Organic Components in Sludge
摘要
Abstract
The purpose of this study was to investigate the effects of Eisenia foetida and corn stover biochar coupled composting on the decomposition of organic components in the mixture of sewage sludge and corn stover.Chemical testing combined with FTIR and 2DCOS technologies were applied to analyze the changes of chemical properties,organic matter composition and degradation sequence in material during composting.The results showed that by the end of composting,inoculation of earthworms could significantly reduce the pH of sludge,while adding biochar did not significantly change the pH of sludge;adding earthworms and biochar could increase the electrical conductivity(EC),total nitrogen(TN),total phosphorus(TP),and total potassium(TK)content in sludge,with earthworms having a greater effect than biochar.Adding earthworms and biochar could alter the structure of functional groups in sludge and increase the relative peak area ratio of 1633/2924.FTIR combined with 2DCOS analysis showed that the separate application of earthworms and biochar could slightly alter the degradation process of organic matter,while the coupling application of earthworms and biochar could completely change the degradation process of organic matter,shifting from preferentially decomposing aliphatic compounds to preferentially decomposing aromatic compounds.This research showed that the coupling treatment of sewage sludge with earthworms and biochar could promote the maturation of compost and improve the fertilizer efficiency of compost products.The coupling composting technology of earthworms and biochar was an effective means to ensure efficient decomposition and maturation of sewage sludge,ultimately forming high-quality organic fertilizers.关键词
赤子爱胜蚓/污泥/生物炭/傅里叶变换红外光谱/二维相关光谱Key words
Eisenia foetida/sludge/biochar/FTIR/2DCOS分类
建筑与水利引用本文复制引用
张继舟,袁磊,吕品,王立民,李雯琪,于志民..蚯蚓与生物炭耦合堆肥对污泥有机组分分解过程的影响[J].中国农学通报,2025,41(27):71-78,8.基金项目
黑龙江省自然科学基金联合引导类项目"蚓炭耦合转化市政污泥中镉的效能和机理"(LH2022C078) （LH2022C078）
黑龙江省科学院科学基金项目"蚯蚓和生物炭转化农业有机废弃物的效能"(KY2023ZR01). （KY2023ZR01）
