Abstract：
The augmentation of biogas production can be achieved by incorporating metallic nanoparticles as additives within anaerobic digestion. The objective of this current study is to examine the synthesis of Fe-Ni-Zn and Fe-Co-Zn trimetallic nanoparticles using the co-precipitation technique and assess its impact on anaerobic digestion using palm oil mill effluent (POME) as carbon source. The structural morphology and size of the synthesised trimetallic nanoparticles were analysed using a range of characterization techniques, such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy-dispersive X-ray spectroscopy (EDX) . The average size of Fe-Ni-Zn and Fe-Co-Zn were 19-25.5 nm and 19.1-30.5 nm respectively. Further, investigation focused on examining the diverse concentrations of trimetallic nanoparticles, ranging from 0 to 50 mgL-1. The biogas production increased by 55.55% and 60.11% with Fe-Ni-Zn and Fe-Co-Zn trimetallic nanoparticles at 40 mgL-1 and 20 mgL-1, respectively. Moreover, the lowest biogas of 11.11% and 38.11% were found with 10 mgL-1 of Fe-Ni-Zn and Fe-Co-Zn trimetallic nanoparticles. The findings of this study indicated that the trimetallic nanoparticles exhibited interactions with anaerobes, thereby enhancing the degradation process of palm oil mill effluent (POME) and biogas production. The study underscores the potential efficacy of trimetallic nanoparticles as a viable supplement for the promotion of sustainable biogas generation.
摘要：
可通过在厌氧消化过程中掺入金属纳米颗粒作为添加剂来实现沼气生产的增加。本研究的目的是使用共沉淀技术检查Fe-Ni-Zn和Fe-Co-Zn三金属纳米颗粒的合成，并评估其对使用棕榈油厂废水（POME）作为碳源的厌氧消化的影响。使用一系列表征技术分析了合成的三金属纳米颗粒的结构形态和尺寸，如X射线衍射(XRD)，傅里叶变换红外光谱(FTIR),场发射扫描电子显微镜（FESEM），能量色散X射线光谱(EDX),和透射电子显微镜（TEM）。Fe-Ni-Zn和Fe-Co-Zn的平均尺寸分别为19-25.5nm和19.1-30.5nm。Further,调查重点是检查不同浓度的三金属纳米颗粒，范围从0到50毫克/升，当Fe-Ni-Zn和Fe-Co-Zn三金属纳米颗粒以40毫克/升和20毫克/升的浓度存在时，观察到沼气产量增加了55.55%和60.11%，分别。此外，最低的沼气11.11％和38.11％是从基于POME的批量AD过程中收集到的10mgL-1的Fe-Ni-Zn和Fe-Co-Zn三金属纳米颗粒。这项研究的结果表明，三金属纳米粒子表现出与厌氧菌的相互作用，从而提高棕榈油厂废水(POME)和沼气生产的降解过程。该研究强调了三金属纳米颗粒作为促进可持续沼气产生的可行补充的潜在功效。
