This article reviews the mechanisms that drive nutrients and carbon sequestration from wastewaters by microbial electrochemical technologies (METs). In this framework, a new generation of METs is also presented (to be called microbial recycling cells, MRCs), based on 100%-recyclable materials (biomass-derived char coal, clay, terracotta, paper, ligno-cellulosic plant materials, etc.), which can act as bio-electrodes, separators and structural frames. In traditional METs architectures (based on technological materials such as carbon cloths, plastic panels, membranes, binders), inorganic salts precipitation and adsorption, as well as biofouling due to organic-matter deposition, are considered as main drawbacks that clog and hinder the systems over relatively short periods. In MRCs, these mechanisms should be maximized, instead of being avoided. In this perspective, both inorganic and organic forms of the main nutrients are sequestered from wastewater and deposited on METs modules. Once the systems become saturated, they can entirely be recycled as agricultural soil conditioners or as base for organic-mineral fertilizers.
Microbial recycling cells (MRCs) : a new platform of microbial electrochemical technologies based on biocompatible materials, aimed at cycling carbon and nutrients in agro-food systems / A. Goglio, M. Tucci, B. Rizzi, A. Colombo, P. Cristiani, A. Schievano. - In: SCIENCE OF THE TOTAL ENVIRONMENT. - ISSN 0048-9697. - 649(2019 Feb 01), pp. 1349-1361.
|Titolo:||Microbial recycling cells (MRCs) : a new platform of microbial electrochemical technologies based on biocompatible materials, aimed at cycling carbon and nutrients in agro-food systems|
SCHIEVANO, ANDREA (Corresponding)
|Parole Chiave:||Biochar; Microalgae; Microbial electrochemical technologies; Microbial recycling cell; Renewable fertilizers; Wastewater|
|Settore Scientifico Disciplinare:||Settore ICAR/03 - Ingegneria Sanitaria-Ambientale|
Settore AGR/13 - Chimica Agraria
|Progetto:||Agro-industrial wastewater purification as source of cheap electricity and biohydrogen. Towards Microbial Fuel/Electrolysis Cells scaling-up and field application|
|Data di pubblicazione:||1-feb-2019|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.scitotenv.2018.08.324|
|Appare nelle tipologie:||01 - Articolo su periodico|
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