Effective phosphate removal from water by electrochemically mediated precipitation with coffee grounds biocarbon obtained by non-thermal plasma method

dc.creatorSILVESTRIN, G.A.
dc.creatorGONCALVES, M.H.
dc.creatorGODOI, C.M.
dc.creatorMAIA, V.A.
dc.creatorFERREIRA, J.C.
dc.creatorGUILHEN, S.N.
dc.creatorNETO, A.O.
dc.creatorSOUZA, R.F.B. de
dc.date2023
dc.date2023-06-14T19:14:07Z
dc.date2023-06-14T19:14:07Z
dc.date.accessioned2023-09-28T14:26:04Z
dc.date.available2023-09-28T14:26:04Z
dc.identifier2595-1521
dc.identifierhttp://repositorio.ipen.br/handle/123456789/34071
dc.identifier1
dc.identifier7
dc.identifier10.32640/tasj.2023.1.3
dc.identifier0000-0001-8745-3421
dc.identifierSem Percentil
dc.identifierSem Percentil CiteScore
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9004279
dc.descriptionThis study investigates the use of biocarbon electrodes, produced from coffee grounds through plasma pyrolysis, in the electrochemically mediated precipitation process for phosphorus removal in a flow reactor. The structural and electrochemical properties of biocarbon were analyzed using X-ray powder diffraction (XRD), Raman spectroscopy, and cyclic voltammetry. The results show that biocarbon consists of both graphene oxide and lignocellulose with surface OH groups that facilitate the breakdown of water, a key step in the electrochemically mediated precipitation process for phosphorus removal. The addition of graphite to the biocarbon paste was found to be necessary to obtain a response from the biocarbon in cyclic voltammetry. The Gr75BC25 electrode achieved higher phosphorus removal rates than other tested electrodes, particularly at low flows, due to the functional groups present in biocarbon enhancing the breakdown of water. However, electrodes with a greater amount of biocarbon exhibit lower rates of phosphorus removal and higher consumption of electrical power, which can be attributed to their higher electrical resistivity. Thus, to optimize its use, it is important to balance the benefits of increased phosphorus removal rates with the trade-off of increased energy consumption and decreased phosphorus removal at higher levels of biocarbon. The results suggest that biocarbon produced from coffee grounds by plasma pyrolysis has the potential to be used as an effective electrode material for electrochemically mediated precipitation processes.
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionCoordena????o de Pesquisa, Desenvolvimento e Ensino (COPDE/IPEN)
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado do Amazonas (FAPEAM)
dc.descriptionCNPq: 302709/2020-7
dc.descriptionFAPESP: 17/11937-4
dc.descriptionCOPDE/IPEN: 2020.06.IPEN.05
dc.descriptionFAPEAM: 012/2021 - POSGFE
dc.format3-12
dc.relationThe Academic Society Journal
dc.rightsopenAccess
dc.subjectelectrochemistry
dc.subjectsynthesis
dc.subjectphosphates
dc.subjectremoval
dc.subjectcarbon
dc.subjectwater treatment
dc.titleEffective phosphate removal from water by electrochemically mediated precipitation with coffee grounds biocarbon obtained by non-thermal plasma method
dc.typeArtigo de peri??dico
dc.coverageN


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