Synergistic of Magnetite Nanoparticles and Alkaline Pretreatment on Biogas Yield from Anaerobic Codigestion of Municipal Waste and Sewage Sludge

IF 3.1 3区工程技术 Q3 ENERGY & FUELS

BioEnergy Research Pub Date : 2024-04-02 DOI:10.1007/s12155-024-10742-7

Mansour Ahmadi-Pirlou, Amirhamzeh Farajollahi, AhmadReza Rahmati

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引用次数: 0

Abstract

One of the most important problems and the main obstacle of this process is the transformation of the complex structure of lignocellulose. One of the ways to break the lignocellulosic structure is to use suitable pretreatment compounds and nanoparticles with appropriate concentration. For this purpose, the synergistic effect of 6%NaOH pretreatment with different magnetite nanoparticle (MNP) concentrations was assessed for maximizing the biogas production. In this study, the optimal mixing ratio of MSW and SS codigestion was determined from our previous studies (MSW:SS 60:40). Application of the 6%NaOH pretreatment alone increased biogas and methane production by 24.6 and 35.4%, respectively, compared to the control. Also, the 6%NaOH pretreatment alone elevated cellulose by 85% while reducing lignin and hemicellulose by 64 and 33%, respectively. The greatest biogas and methane production was obtained in the reactor of 6%NaOH with an MNP concentration of 110 ppm, experiencing an 86 and 162% increase compared to the control. The greatest reduction in total solids and volatile solids was also obtained in this digestor by 76.6 and 79%, respectively, compared to the control reactor.

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磁铁矿纳米颗粒和碱性预处理对城市垃圾和污水污泥厌氧消化产生的沼气产量的协同作用

摘要转化木质纤维素的复杂结构是这一过程中最重要的问题和主要障碍之一。打破木质纤维素结构的方法之一是使用合适的预处理化合物和适当浓度的纳米粒子。为此，研究人员评估了 6%NaOH 预处理与不同浓度磁铁矿纳米粒子（MNP）的协同效应，以最大限度地提高沼气产量。在本研究中，根据先前的研究确定了 MSW 和 SS 协同消化的最佳混合比例（MSW:SS 60:40）。与对照组相比，单独使用 6%NaOH 预处理可使沼气和甲烷产量分别增加 24.6% 和 35.4%。此外，单独使用 6%NaOH 预处理可使纤维素增加 85%，同时木质素和半纤维素分别减少 64% 和 33%。在使用 6%NaOH 且 MNP 浓度为 110 ppm 的反应器中，沼气和甲烷产量最高，与对照组相比，分别增加了 86% 和 162%。与对照反应器相比，该消化器中总固体和挥发性固体的减少量也最大，分别为 76.6% 和 79%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

BioEnergy Research ENERGY & FUELS-ENVIRONMENTAL SCIENCES

CiteScore

6.70

自引率

8.30%

发文量

174

审稿时长

3 months

期刊介绍： BioEnergy Research fills a void in the rapidly growing area of feedstock biology research related to biomass, biofuels, and bioenergy. The journal publishes a wide range of articles, including peer-reviewed scientific research, reviews, perspectives and commentary, industry news, and government policy updates. Its coverage brings together a uniquely broad combination of disciplines with a common focus on feedstock biology and science, related to biomass, biofeedstock, and bioenergy production.