Application of nano-structured materials in anaerobic digestion: Current status and perspectives

Baniamerian, Hamed; Ghofrani-Isfahani, Parisa; Tsapekos, Panagiotis; Alvarado-Morales, Merlin; Shahrokhi, Mohammad; Vossoughi, Manouchehr; Angelidaki, Irini

doi:10.1016/j.chemosphere.2019.04.193

Cited by 99 publications

(32 citation statements)

References 109 publications

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“…Yet another prospect is in the area of anaerobic digestion (biomethanation) of organic wastes (including excreta) that includes the steps of hydrolysis, acidogenesis, acetogenesis and methanogenesis. Addition of nanomaterials helps to accelerate the digestion process, resulting in a high amount of volatile fatty acids (VFAs) and biogas being produced [171][172][173] . Instead of biogas production, alternatives such as hydrogen generation, recovery of VFAs for chemicals production etc.…”

Section: Emerging Applications Of Nms-mbr Technologymentioning

confidence: 99%

A critical review on nanomaterials membrane bioreactor (NMs-MBR) for wastewater treatment

et al. 2020

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The concept of nanomaterials membranes (NMs) promises to be a sustainable route to improve the membrane characteristics and enhance the performance of membrane bioreactors (MBRs) treating wastewater. This paper provided a critical review of recent studies on the use of membranes incorporating nanomaterials in membrane bioreactor (NMs-MBR) applications for wastewater treatment. Novel types of nanomaterials membranes were identified and discussed based on their structural morphologies. For each type, their design and fabrication, advances and potentialities were presented. The performance of NMs-MBR system has been summarized in terms of removal efficiencies of common pollutants and membrane fouling. The review also highlighted the sustainability and cost viability aspects of NMs-MBR technology that can enhance their widespread use in wastewater treatment applications.

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Section: Emerging Applications Of Nms-mbr Technologymentioning

confidence: 99%

A critical review on nanomaterials membrane bioreactor (NMs-MBR) for wastewater treatment

et al. 2020

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“…Furthermore, mesoporous silica (SiO 2 ) nanoparticles exhibit outstanding features such as tunable pore size, high chemical and thermal stability, high adsorption capacity, excellent biocompatibility, and large-surface-area [158][159][160][161][162]. These nanomaterials have been used in the enrichment of DF processes by Venkata Mohan et al [163] and Seifert et al [164].…”

Section: Nanotechnologymentioning

confidence: 99%

Revising the dark fermentative H2 research and development scenario – An overview of the recent advances and emerging technological approaches

Sekoai

Daramola

Mogwase

et al. 2020

Biomass and Bioenergy

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The indiscriminate use of fossil fuels has led to several challenges such as greenhouse gas emissions, environmental degradation, and energy security. Establishment of clean fuels is at the forefront of science and innovation in today's society to curb these problems. Dark fermentation (DF) is widely regarded as the most promising clean energy technology of the 21st century due to its desirable properties such as high energy content, its non-polluting features, its ability to use a broad spectrum of feedstocks and inoculum sources, as well as its ability to use mild fermentation conditions. In developing nations, this technology could be instrumental in establishing effective waste disposal systems while boosting the production of clean fuels. However, DF is still hindered by the low yields which stagnate its commercialization. This paper reviews the recent and emerging technologies that are gaining prominence in DF based on information that has been gathered from recent scientific publications. Herein, novel enhancement methods such as cell immobilization, nanotechnology, mathematical optimization tools, and technologies for biogas upgrading using renewable H 2 are comprehensively discussed. Furthermore, a section which discusses the potential of bioenergy in Sub-Saharan Africa including South Africa is included. Finally, scientific areas that need further research and development in DF process are also presented.

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“…Undoubtedly, there is a literature chaos, specifically around CM-based DIET stimulation topic, since DIET occurrence has been claimed in many researches, without revealing vital experimental evidences. Therefore, recent review articles indicated that more experimental observations are required before claiming DIET stimulation [36,80]. Future researches should direct more effort for verifying DIET activation and/or other potential changes in anaerobic growth, which can be implicated in the observed enhancement in CH 4 production rate and/or yield.…”

Section: (B) Scientific Perspectivesmentioning

confidence: 99%

“…This review is expected to draw a panoramic understanding for various aspects related to DIET and figure out the weakness/challenging points in our knowledge about DIET. Recent DIET-related review articles have mainly focused on the evidences of DIET and the addition of CM for stimulating DIET [34][35][36][37]; while the application of EV for stimulating DIET and corresponding microbial community change were not addressed. In this review, we are combing various points regarding DIET, i.e., DIET-caused thermodynamic favorability, recent researches that employed CM and/or EV for DIET stimulation, DIET-driven microbial community change, and future insights for DIET-related hot topics.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Anaerobic Digestion by Stimulating DIET Reaction

Mostafa

Song

et al. 2020

Processes

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Since the observation of direct interspecies electron transfer (DIET) in anaerobic mixed cultures in 2010s, the topic “DIET-stimulation” has been the main route to enhance the performance of anaerobic digestion (AD) under harsh conditions, such as high organic loading rate (OLR) and the toxicants’ presence. In this review article, we tried to answer three main questions: (i) What are the merits and strategies for DIET stimulation? (ii) What are the consequences of stimulation? (iii) What is the mechanism of action behind the impact of this stimulation? Therefore, we introduced DIET history and recent relevant findings with a focus on the theoretical advantages. Then, we reviewed the most recent articles by categorizing how DIET reaction was stimulated by adding conductive material (CM) and/or applying external voltage (EV). The emphasis was made on the enhanced performance (yield and/or production rate), CM type, applied EV, and mechanism of action for each stimulation strategy. In addition, we explained DIET-caused changes in microbial community structure. Finally, future perspectives and practical limitations/chances were explored in detail. We expect this review article will provide a better understanding for DIET pathway in AD and encourage further research development in a right direction.

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Application of nano-structured materials in anaerobic digestion: Current status and perspectives

Cited by 99 publications

References 109 publications

A critical review on nanomaterials membrane bioreactor (NMs-MBR) for wastewater treatment

A critical review on nanomaterials membrane bioreactor (NMs-MBR) for wastewater treatment

Revising the dark fermentative H2 research and development scenario – An overview of the recent advances and emerging technological approaches

Enhanced Anaerobic Digestion by Stimulating DIET Reaction

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