Analysis of infrared optical polishing effluents and reduction of COD and TSS levels by ultrafiltration and coagulation/flocculation

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dc.contributor.authorDurazo-Cardenas, Isidro
dc.contributor.authorNoguera-Sagrera, Albert
dc.contributor.authorImpey, Susan A.
dc.date.accessioned2016-09-01T15:42:52Z
dc.date.available2016-09-01T15:42:52Z
dc.date.issued2014-01-27
dc.description.abstractSamples of polishing effluent produced during infrared optics manufacture were analyzed. Their particle size, composition, Zeta potential, chemical oxygen demand (COD), total suspended solids (TSS), and settleable solids were determined. Feasibility of treatment methods such as ultrafiltration (UF) and coagulation/flocculation was investigated to reduce both COD and TSS. It was found that effluents consisted of a suspension of micro- and nanoparticles. Effluent particle size distribution reflected the removal rate of the originating polishing process. Their composition was primarily germanium and other polished substrates as well as polishing abrasives. The effluent Zeta potential was highly negative and prevented particle settling. COD of all specimens was very high, which prevented sewage discharge. Laboratory-scale trials using UF showed substantial COD abatement of up to 74.1%. TSS was reduced to zero after UF. Comparable coagulation/flocculation COD abatement was demonstrated for the highest COD sample.en_UK
dc.identifier.citationDurazo-Cardenas, I. S., Noguera-Sagrera, A. , Impey, S. A. (2014) Analysis of infrared optical polishing effluents and reduction of COD and TSS levels by ultrafiltration and coagulation/flocculation, Desalination and Water Treatment, Vol. 52, Iss. 25-27, pp. 4612-4621en_UK
dc.identifier.cris4233055
dc.identifier.issn1944-3994
dc.identifier.urihttps://cris.cranfield.ac.uk/converis/mypages/editor/Publication/4233055/default
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10485
dc.language.isoenen_UK
dc.publisherTaylor & Francisen_UK
dc.rightsAttribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.en_UK
dc.rightsThis is an Accepted Manuscript of an article published by Taylor & Francis in Desalination and Water Treatment on 27/01/2014, available online: http://www.tandfonline.com/10.1080/19443994.2014.881750.en_UK
dc.subjectPolishing effluentsen_UK
dc.subjectIndustrialen_UK
dc.subjectWastewater treatmenten_UK
dc.subjectAnalysisen_UK
dc.subjectIndustryen_UK
dc.subjectEffluenten_UK
dc.titleAnalysis of infrared optical polishing effluents and reduction of COD and TSS levels by ultrafiltration and coagulation/flocculationen_UK
dc.typeArticleen_UK

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