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dc.contributor.authorSilva-Castro, Gloria Andrea
dc.contributor.authorRodríguez Calvo, Alfonso
dc.contributor.authorRobledo Mahón, Tatiana 
dc.contributor.authorAranda Ballesteros, Elisabet 
dc.contributor.authorGonzález López, Jesús Juan 
dc.contributor.authorCalvo Sáinz, Concepción 
dc.date.accessioned2021-07-08T08:39:07Z
dc.date.available2021-07-08T08:39:07Z
dc.date.issued2021
dc.identifier.citationSilva-Castro, G.A.; Rodríguez-Calvo, A.; RobledoMahón, T.; Aranda, E.; GonzálezLópez, J.; Calvo, C. Design of Bio-Absorbent Systems for the Removal of Hydrocarbons from Industrial Wastewater: Pilot-Plant Scale. Toxics 2021, 9, 162. https:// doi.org/10.3390/toxics9070162es_ES
dc.identifier.urihttp://hdl.handle.net/10481/69604
dc.description.abstractThe objective of this study was the development and design of a treatment system at a pilot-plant scale for the remediation of hydrocarbons in industrial wastewater. The treatment consists of a combined approach of absorption and biodegradation to obtain treated water with sufficient quality to be reused in fire defense systems (FDSs). The plant consists of four vertical flow columns (bioreactors) made of stainless steel (ATEX Standard) with dimensions of 1.65 × 0.5 m and water volumes of 192.4 L. Each bioreactor includes a holder to contain the absorbent material (Pad Sentec polypropylene). The effectiveness of the treatment system has been studied in wastewater with high and low pollutant loads (concentrations higher than 60,000 mg L−1 of total petroleum hydrocarbons (TPH) and lower than 500 mg L−1 of TPHs, respectively). The pilot-plant design can function at two different flow rates, Q1 (180 L h−1 ) and Q2 (780 L h−1 ), with or without additional aeration. The results obtained for strongly polluted wastewaters showed that, at low flow rates, additional aeration enhanced hydrocarbon removal, while aeration was unnecessary at high flow rates. For wastewater with a low pollutant load, we selected a flow rate of 780 L h−1 without aeration. Different recirculation times were also tested along with the application of a post-treatment lasting 7 days inside the bioreactor without recirculation. The microbial diversity studies showed similar populations of bacteria and fungi in the inlet and outlet wastewater. Likewise, high similarity indices were observed between the adhered and suspended biomass within the bioreactors. The results showed that the setup and optimization of the reactor represent a step forward in the application of bioremediation processes at an industrial/large scale.es_ES
dc.description.sponsorshipCompañía Logística de Hidrocarburos S.Aes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightsAtribución 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectHydrocarbons es_ES
dc.subjectBioremediationes_ES
dc.subjectIndustrial wastewateres_ES
dc.subjectPilot scalees_ES
dc.subjectMicrobial diversityes_ES
dc.subjectBiofilmes_ES
dc.titleDesign of Bio-Absorbent Systems for the Removal of Hydrocarbons from Industrial Wastewater: Pilot-Plant Scalees_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.3390/toxics9070162


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