Impact of electro-conductive nanoparticles additives on anaerobic digestion performance - A review

Hassanein, Amro; Kumar, Avanish; Lansing, Stephanie

doi:10.1016/j.biortech.2021.126023

Cited by 23 publications

(7 citation statements)

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As irreplaceable micronutrients, Fe, Ni, Co, Cu, and Zn serve as cofactors for enzymatic systems in the AD process. , Specifically, the final process of the methane formation pathway could be catalyzed by Ni, which is a vital role in the cofactor F 430 , playing a key role in the activity of methyl reductase complex . Fe can influence the activity of iron-containing enzymes and coenzymes involving hydrogenophilic methanogenesis, which increases the rate of H 2 production, and the produced H 2 is consumed by hydrogenophilic methanogens to form CH 4 . , Both Fe and Ni are cofactors of hydrogenase, a key enzyme in the hydrogen production pathway .…”

Section: Insight Into the Complex Mechanismsmentioning

confidence: 99%

Effects of Mixtures of Engineered Nanoparticles and Cocontaminants on Anaerobic Digestion

Wang,

Pan,

Yang

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

The widespread application of nanotechnology inevitably leads to an increased release of engineered nanoparticles (ENPs) into the environment. Due to their specific physicochemical properties, ENPs may interact with other contaminants and exert combined effects on the microbial community and metabolism of anaerobic digestion (AD), an important process for organic waste reduction, stabilization, and bioenergy recovery. However, the complicated interactions between ENPs and other contaminants as well as their combined effects on AD are often overlooked. This review therefore focuses on the co-occurrence of ENPs and cocontaminants in the AD process. The key interactions between ENPs and cocontaminants and their combined influences on AD are summarized from the available literature, including the critical mechanisms and influencing factors. Some sulfides, coagulants, and chelating agents have a dramatic "detoxification" effect on the inhibition effect of ENPs on AD. However, some antibiotics and surfactants increase the inhibition of ENPs on AD. The reasons for these differences may be related to the interactive effects between ENPs and cocontaminants, changes of key enzyme activities, adenosine triphosphate (ATP) levels, reactive oxygen species (ROS) production, and microbial communities. New scientific opportunities for a better understanding of the coexistence in real world situations are converging on the scale of nanoparticles.

show abstract

Section: Insight Into the Complex Mechanismsmentioning

confidence: 99%

Effects of Mixtures of Engineered Nanoparticles and Cocontaminants on Anaerobic Digestion

Wang,

Pan,

Yang

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…NPs without a trace element base provided active sites for microorganisms and absorbed inhibitory substances. In addition, the improvement in biogas generation was attributed to electron transfer between species using electrically conductive materials such as NPs, which is one of the mechanisms responsible for the increase in CH 4 yield [68].…”

Section: The Effect Of Nps On Anaerobic Digestionmentioning

confidence: 99%

Effect of Emerging Micropollutants on the Anaerobic Digestion of Sewage Sludge

Zielińska,

Cydzik-Kwiatkowska

2024

Energies

View full text Add to dashboard Cite

The recovery of valuable resources from wastewater treatment plants (WWTPs) has received a great deal of attention as part of the concept of a circular economy. Anaerobic digestion for stabilizing sewage sludge in WWTPs, which produces biogas and stabilized biosolids, is a mature technology used worldwide. However, despite the necessity of achieving safe and reliable organic recycling, studies on the effect of some emerging micropollutants on this process are rare. This knowledge gap is of growing relevance because of the increasing use of some endocrine-disrupting compounds (EDCs), microplastics (MPs), and engineered nanoparticles (NPs) in industry and human life. These compounds are ubiquitous in wastewater streams and, therefore, may have serious effects on the course of the anaerobic digestion of sewage sludge, raising concerns about their effects on the environment. This article provides a comprehensive overview of the mechanisms by which selected EDCs, MPs, and NPs affect the valorization of sewage sludge, with a focus on the production of CH4, H2, and volatile fatty acids. This study takes into consideration the performance during all stages of anaerobic digestion, the shifts in microbial abundance and diversity, and the activity of key enzymes during the treatment process.

show abstract

“…Addition of such promoters have been reported to mitigate AD process inhibition, improve AD stability, support microbial growth, and enhance DIET, thereby improving methane yield and digestate quality. In the review, Hassanein et al (2021) provided insights on the correlations among DIET, electro-conductive nanoparticles, and AD process stability and efficiency when nanoparticles were added into AD systems. Furthermore, the review explored the interaction of anaerobic microorganisms and DIET, the effect of electro-conductive nanoparticles on microbial community shifts and syntrophic metabolism.…”

Section: Promotor Addition In Anaerobic Digestermentioning

confidence: 99%

Bioconversion of waste-to-resources (BWR-2021): Valorization of industrial and agro-wastes to fuel, feed, fertilizer, and biobased products

Surendra

Angelidaki

Khanal

2022

Bioresource Technology

View full text Add to dashboard Cite

Impact of electro-conductive nanoparticles additives on anaerobic digestion performance - A review

Cited by 23 publications

References 98 publications

Effects of Mixtures of Engineered Nanoparticles and Cocontaminants on Anaerobic Digestion

Effects of Mixtures of Engineered Nanoparticles and Cocontaminants on Anaerobic Digestion

Effect of Emerging Micropollutants on the Anaerobic Digestion of Sewage Sludge

Bioconversion of waste-to-resources (BWR-2021): Valorization of industrial and agro-wastes to fuel, feed, fertilizer, and biobased products

Contact Info

Product

Resources

About