Combined treatment based on synergism between hydrodynamic cavitation and H2O2 for degradation of cyanide in effluents

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dc.contributor.authorMontalvo Andia J.P, J.P.
dc.contributor.authorTicona Cayte, A.E.B.
dc.contributor.authorIllachura Rodriguez, J.M.B.
dc.contributor.authorLópez Belón, L.A.
dc.contributor.authorCárdenas Málaga M.A.b, M.A.B.
dc.contributor.authorTeixeira, L.A.C.
dc.date.accessioned2022-03-10T23:59:04Z
dc.date.available2022-03-10T23:59:04Z
dc.date.issued2021
dc.description.abstract"The main purpose of this research has been to evaluate and optimize the application of hydrodynamic cavitation (HC), combined with hydrogen peroxide, as a promising process for the effective degradation of cyanide in aqueous effluents. The experimental work was carried out using cavitation equipment with a venturi device connected to a tubular circuit which allowed a closed-cycle flow to run for 120 min, in which the effect of control parameters as inlet pressure, H2O2:CN─ ratio, pH, and temperature have been evaluated for the treatment of solutions with initial cyanide concentration in range 100 to 550 mg L─1. The results showed that in optimal conditions cyanide degradation using only HC reached 70% and, using solely H2O2 as oxidizing agent it reached 63%. Efficiency of the combined treatment process was evaluated on the basis of their synergetic effect as it turned out to be more effective showing a 99.9 % cyanide degradation in less than 120 min. The optimum set of conditions that produced the highest degradation rate and efficiency was: inlet pressure 4 bar; pH 9.5; and H2O2:CN─ ratio = 1.5:1. The process was also evaluated on the basis of cavitational yield and in terms of energy and chemical treatment costs. The results have demonstrated that the combined treatment technology of HC + H2O2 can be effectively used as a fast and highly efficient treatment of wastewater containing cyanide." es_PE
dc.description.uriTrabajo académicoes_PE
dc.identifier.doi10.1016/j.mineng.2021.107119es_PE
dc.identifier.issn08926875
dc.identifier.urihttps://hdl.handle.net/20.500.12590/17070
dc.language.isoenges_PE
dc.publisherElsevier Ltdes_PE
dc.publisher.countryPEes_PE
dc.relationinfo:eu-repo/semantics/articlees_PE
dc.relation.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85112548850&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=bf6bae9a56b2331387d9f5550bd7ed65&sot=aff&sdt=cl&cluster=scopubyr%2c%222021%22%2ct&sl=48&s=AF-ID%28%22Universidad+Cat%c3%b3lica+San+Pablo%22+60105300%29&relpos=11&citeCnt=2&searchTerm=&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1es_PE
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_PE
dc.sourceUniversidad Católica San Pabloes_PE
dc.sourceRepositorio Institucional - UCSPes_PE
dc.subjectCyanide removales_PE
dc.subjectHybrid treatmentes_PE
dc.subjectHydrodynamic cavitation;es_PE
dc.subjectKinetic studyes_PE
dc.subjectOperational costes_PE
dc.subjectSlit venturies_PE
dc.subject.ocdehttps://purl.org/pe-repo/ocde/ford#2.11.04es_PE
dc.titleCombined treatment based on synergism between hydrodynamic cavitation and H2O2 for degradation of cyanide in effluentses_PE
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_PE
renati.typehttps://purl.org/pe-repo/renati/type#trabajoAcademico
thesis.degree.disciplineIngeniería Ambientales_PE
thesis.degree.grantorUniversidad Católica San Pablo. Departamento de Ingenierias de la Industria y el Ambientees_PE
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