Mechanism study of improving anaerobic co-digestion performance of waste activated sludge and food waste by Fe3O4

Zhu, Ruilin; He, Linyan; Li, Qianyi; Huang, TingXuan; Gao, Meng; Jiang, Qin; Liu, Junyan; Cai, Anrong; Shi, Dezhi; Gu, Li; He, Qiang

doi:10.1016/j.jenvman.2021.113745

Cited by 20 publications

(2 citation statements)

References 49 publications

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“…A similar trend was observed when powdered activated carbon was added to the OFMSW in the HSAD system . According to the literature reports, the methanogen activity of the AD system will be inhibited when the VFA concentration exceeds 6000 mg/L . In all experimental groups, the range of VFA concentrations ranged from 38.1 to 3929.3 mg/L, which did not extend beyond this inhibition range; thus, the AD system was not inhibited by VFAs.…”

Section: Resultsmentioning

confidence: 99%

“…10 According to the literature reports, the methanogen activity of the AD system will be inhibited when the VFA concentration exceeds 6000 mg/L. 33 In all experimental groups, the range of VFA concentrations ranged from 38.1 to 3929.3 mg/L, which did not extend beyond this inhibition range; thus, the AD system was not inhibited by VFAs. In the AD system, the composition of VFAs usually plays an important role.…”

Section: Effect Of the Addition Strategy Of Zvi And Gac On The Hsadmentioning

confidence: 90%

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Adding Granular Activated Carbon and Zerovalent Iron to the High-Solid Anaerobic Digestion System of the Organic Fraction of Municipal Solid Waste: Anaerobic Digestion Performance and Microbial Community Analysis

Zhang,

Yuan,

Zuo

et al. 2024

ACS Omega

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Anaerobic digestion (AD) performance and microbial dynamics were investigated in a high-solid anaerobic digestion (HSAD) system of the organic fraction of municipal solid waste (OFMSW). 1, 5, 10, and 15% (w/w, dry weight of the OFMSW) of granular activated carbon (GAC) and zerovalent iron (ZVI) were added to the HSAD system. The results showed that adding ZVI and GAC can improve the methane yield of the OFMSW. Notably, R-(GAC + ZVI) exhibited the highest cumulative methane yield of 343.0 mL/gVS, which was 57.1% higher than that of the R-control. At the genus level, the dominant bacteria included norank_f__norank_o__MBA03, norank_f__norank_o__norank_c__norank_p__Firmicutes, Fastidiosipila, norank_f__Rikenellaceae, and Sphaerochaeta, while Methanoculleus, Methanobacterium, and Methanosarcina were the dominant archaea. The highest relative abundance of norank_f__norank_o__norank_c__norank_p__Firmicutes was 30.8% for the R-(GAC + ZVI), which was 71.4% higher than that of the R-control. The relative abundance of Methanoculleus and Methanobacterium for the R-(GAC + ZVI) and the R-control group accounted for 79.0 and 90.8% of the total archaeal abundance, respectively. Additionally, the relative abundance of Methanosarcina was 10.6% for R-(GAC + ZVI), which was higher than that of the R-control (1.1%). After the addition of GAC and ZVI, the electron transfer capacity of the HSAD system was enhanced, resulting in promoted methane production. Thus, the simultaneous addition of GAC and ZVI to the HSAD system can be an effective strategy to promote the cumulative methane yield of the OFMSW.

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Section: Resultsmentioning

confidence: 99%

Section: Effect Of the Addition Strategy Of Zvi And Gac On The Hsadmentioning

confidence: 90%

Adding Granular Activated Carbon and Zerovalent Iron to the High-Solid Anaerobic Digestion System of the Organic Fraction of Municipal Solid Waste: Anaerobic Digestion Performance and Microbial Community Analysis

Zhang,

Yuan,

Zuo

et al. 2024

ACS Omega

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Sorghum stover and winery solid wastes co-digestion: application of iron oxide nanoparticles for biogas yield optimisation

Ossinga,

Okudoh,

Chowdhury

2023

Discov Water

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One approach to addressing energy security issues is to produce renewable and sustainable bioenergy using abundant waste resources through anaerobic co-digestion (AcoD). However, the lignocellulosic nature of these biomass resources makes them recalcitrant, and pretreatment is required to make them more amenable to conversion. Iron oxide nanoparticles (ION) have been shown to increase methane yield significantly when added to biomass resources. This study aimed to investigate the effect of ION application on Sorghum stover (SS) and Winery solid waste (WSW) under mesophilic conditions. Hydrothermal synthesis was used to obtain Fe3O4 nanoparticles. Biomethane potential (BMP) tests were carried out in semi-continuous batch reactors with and without ION singly and combined SS: WSW (1:1) during a 30-day retention period. The results showed that the ION application on WSW delivered a higher biogas yield (380 mL), indicating an increase of 162% in biogas production compared to the sample without ION (145 mL). In addition, CH4 generation went from 30 to 114 mLCH4, indicating a 280% increase. However, adding ION to SS inhibited CH4 production. The study found that ION addition significantly improved biogas yield, especially with WSW, where the increase was more than triple, of interest to bioenergy and waste management practitioners. Graphic Abstract

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Direct interspecies electron transfer stimulated by coupling of modified anaerobic granular sludge with microbial electrolysis cell for biogas production enhancement

Yu-fang

Zhao

et al. 2023

Applied Energy

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Mechanism study of improving anaerobic co-digestion performance of waste activated sludge and food waste by Fe3O4

Cited by 20 publications

References 49 publications

Adding Granular Activated Carbon and Zerovalent Iron to the High-Solid Anaerobic Digestion System of the Organic Fraction of Municipal Solid Waste: Anaerobic Digestion Performance and Microbial Community Analysis

Adding Granular Activated Carbon and Zerovalent Iron to the High-Solid Anaerobic Digestion System of the Organic Fraction of Municipal Solid Waste: Anaerobic Digestion Performance and Microbial Community Analysis

Sorghum stover and winery solid wastes co-digestion: application of iron oxide nanoparticles for biogas yield optimisation

Direct interspecies electron transfer stimulated by coupling of modified anaerobic granular sludge with microbial electrolysis cell for biogas production enhancement

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