Improving the recovery of organic matter and phosphorus (P) from hazardous biowastes such as swine manure using acidic substrates (ASs) in conjunction with aerobic composting is of great interest. This work aimed to investigate the effects of ASs on the humification and/or P migration as well as on microbial succession during the swine manure composting, employing multivariate and multiscale approaches. Adding ASs, derived from wood vinegar and humic acid, increased the degree of humification and thermal stability of the compost. The ³¹P nuclear magnetic resonance spectroscopy and X-ray absorption near-edge structure analyses demonstrated compost P was in the form of struvite crystals, Ca/Al-P phases, and Poly-P (all inorganic P species) as well as inositol hexakisphosphate and Mono-P (organophosphorus species). However, the efficiency of P recovery could be improved by generating more struvite by adding the ASs. The flows among nutrient pools resulted from the diversity in the dominant microbial communities in different composting phases after introducing the ASs and appearance of Bacillus spp. in all phases. These results demonstrate the potential value of ASs for regulating and/or improving nutrients flow during the composting of hazardous biowastes for producing higher quality compost, which may maximize their beneficial benefits and applications.

使用酸性底物 (AS) 与好氧堆肥相结合，提高有害生物废物（如猪粪）中有机物和磷 (P) 的回收率具有重要意义。这项工作旨在采用多变量和多尺度方法研究 AS 对猪粪堆肥过程中腐殖化和/或 P 迁移以及微生物演替的影响。添加源自木醋液和腐殖酸的 AS 可提高堆肥的腐殖化程度和热稳定性。³¹ _P 核磁共振光谱和 X 射线吸收近边缘结构分析表明堆肥 P 呈鸟粪石晶体、Ca/Al-P 相和 Poly-P（所有无机 P 物质）以及肌醇六磷酸和 Mono -P（有机磷物质）。然而，可以通过添加 AS 生成更多鸟粪石来提高 P 回收效率。营养池之间的流动是由于引入ASs和芽孢杆菌出现后不同堆肥阶段优势微生物群落的多样性spp. 在所有阶段。这些结果证明了 AS 在危险生物废物堆肥过程中调节和/或改善养分流动以生产更高质量堆肥的潜在价值，这可以最大限度地提高其有益效益和应用。