iScience
MaREI Centre, Environmental Research Institute, School of Engineering, University College Cork, Cork T23XE10, Ireland.
Published: September 2021
Biomethane is suggested as an advanced biofuel for the hard-to-abate sectors such as heavy transport. However, future systems that optimize the resource and production of biomethane have yet to be definitively defined. This paper assesses the opportunity of integrating anaerobic digestion (AD) with three emerging bioelectrochemical technologies in a circular cascading bioeconomy, including for power-to-gas AD (P2G-AD), microbial electrolysis cell AD (MEC-AD), and AD microbial electrosynthesis (AD-MES). The mass and energy flow of the three bioelectrochemical systems are compared with the conventional AD amine scrubber system depending on the availability of renewable electricity. An energy balance assessment indicates that P2G-AD, MEC-AD, and AD-MES circular cascading bioelectrochemical systems gain positive energy outputs by using electricity that would have been curtailed or constrained (equivalent to a primary energy factor of zero). This analysis of technological innovation, aids in the design of future cascading circular biosystems to produce sustainable advanced biofuels.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8426204 | PMC |
http://dx.doi.org/10.1016/j.isci.2021.102998 | DOI Listing |
J Environ Manage
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College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China. Electronic address:
Bioelectrochemical technology emerges as a promising approach for addressing the challenge of antibiotic residue contamination. This research innovated by incorporating in-situ self-assembled gold nanoparticles (Au-NPs) and reduced graphene oxide (rGO) into a co-cultured electroactive biofilm (EAB) of Raoultella sp. DB-1 and Shewanella oneidensis MR-1 (Au-rGO@R/S-C).
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Universidad de Alcalá, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona Km. 33,600, Alcalá de Henares, 28871, Madrid, Spain.
50% of pharmaceuticals and 25% of herbicides used worldwide are chiral. Each enantiomer has a unique toxicity and biodegradation profile, affecting differently to organisms. Chirality plays a key role in the behavior of these emerging contaminants (ECs) in terms of their pharmacological or herbicidal activity, but this peculiarity is often overlooked in environmental research.
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Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada. Electronic address:
Currently, global annual CO emissions from fossil fuel consumption are extremely high, surpassing tens of billions of tons, yet our capacity to capture and utilize CO remains below a small fraction of the amount generated. Microbial electrosynthesis (MES) systems, an integration of microbial metabolism with electrochemistry, have emerged as a highly efficient and promising bio-based carbon-capture-and-utilization technology over other conventional techniques. MES is a unique technology for lowering the atmospheric CO as well as CO in the biogas, and also simultaneously convert them to renewable bioenergy, such as biomethane.
View Article and Find Full Text PDFWater Res
January 2025
College of Environmental Science and Engineering, Hunan University, Changsha 410082, Hunan, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China. Electronic address:
Recent advancements in bio-electrochemical systems (BESs) for antibiotic removal are receiving great attentions due to the electro-active bacteria on the electrode that could elevate the removal efficiency. Enhanced detoxification performance of BESs compared to the traditional biological processes indicates the great potential serving as a sustainable alternative or a pre-/post-processing unit to improve the performance of biological processes. However, the successfully application of BESs to antibiotic-polluted water remediation requires a deeper discussion on their operational performance and emerging coupled systems.
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December 2024
Division of Environmental Engineering, National Technological Institute of Mexico (TecNM) / Technological of Higher Studies of Tianguistenco, Tianguistenco 52650, Mexico. Electronic address:
The persistent challenge of water pollution, exacerbated by slow progress in ecofriendly technologies and accumulating pollutants, underscores the need for innovative solutions. Constructed Wetland Microbial Fuel Cell (CW-MFC) emerges as an intriguing environmental technology capable of adressing this issue by eliminating contaminants from wastewater while simultaneously producing green energy as an additional bonus. In recent years, CW-MFC technology has gained attention due to its sustainability and promising prospects for a circular waste-free industry.
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