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通过添加纳米颗粒来改善污水污泥的无氧消化

Alfredo Córdova Lizama¹, Cristian Carrera Figueiras¹, Alejandro Zepeda Pedreguera¹

¹Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Mérida, México.

Environmental technology

|September 18, 2024

概括

纳米颗粒 (CoNPs) 显著增强污水污泥无氧消化 (AD),提高生物气产量和减少有机物质. 3-7 mg/gVS的剂量改善了AD的性能和稳定性.

科学领域:

环境科学环境科学
生物技术是生物技术.
材料科学材料科学材料科学

背景情况:

污水污泥无氧消化 (AD) 对废物管理和可再生能源至关重要.
提高AD的效率和稳定性对于最大限度地提高生物气生产和有机物去除至关重要.

研究的目的:

评估纳米粒子 (CoNPs) 对加剧污水污泥无氧消化 (AD) 的影响.
确定CoNPs的最佳剂量,以提高AD的性能和稳定性.

主要方法:

生物化学甲潜力 (BMP) 测试用于评估AD的性能.
在不同的剂量 (0.025-7 mg/gVS) 中添加了纳米粒子 (CoNPs).
分析包括挥发性固体的减少,生物气产量,甲含量,挥发性脂肪酸,氧化还原潜力和电子转移系统活动.

主要成果:

服用3-7mg/gVS的CoNPs显著改善了AD的性能.
生物气的最大产量达到232mL/gVS (7mg/gVS CoNPs),与对照组 (132mL/gVS) 相比大幅增加.
挥发性固体和甲含量的减少分别达到16%和74.3%,并添加了CoNP.

结论:

纳米粒子 (CoNPs) 有效地加剧了污水污泥的无氧消化过程.
CoNPs增强了系统稳定性和乙类甲生成,导致生物气产量增加和有机物降解.
这项研究为优化CoNP剂量以提高AD效率提供了新的见解.

关键词:

纳米粒子是的纳米粒子.无氧生物降解无氧生物降解生物气体是一种生物气体.污水污泥污水污泥污水污泥一个微量元素的痕迹.

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