Simultaneous nitrate and organic matter removal from salmon industry wastewater: The effect of C/N ratio, nitrate concentration and organic load rate on batch and continuous process
Abstract: Although simultaneous denitrification-anaerobic digestion has been studied extensively, the use of salmon effluents as organic matter source has received little attention. This study evaluated the effect of C/N ratio, nitrate concentration, and organic load rate (OLR) on simultaneous nitra...
| Publicado en: | Journal of Environmental Management Vol. 101; pp. 82 - 92 |
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| Autores principales: | , , , |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Jun2012
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=73985217&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 73985217 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Jun2012 vid: 101 pid: 735 pub: Academic Press Inc. artinfo: ui: 73985217 10.1016/j.jenvman.2012.02.015 ppf: 82 ppct: 10 formats: tig: atl: Simultaneous nitrate and organic matter removal from salmon industry wastewater: The effect of C/N ratio, nitrate concentration and organic load rate on batch and continuous process aug: au: Huiliñir, C. Hernández, S. Aspé, E. Roeckel, M. affil: Department of Chemical Engineering, University of Santiago of Chile, Santiago, Chile Department of Chemical Engineering, University of Concepción, Concepción, Chile su: Salmon industry Nitrogen removal (Sewage purification) Organic compounds removal (Sewage purification) Batch processing Continuous processing Nitrates Seafood industry waste Industry & the environment sug: subj: Finfish Fishing Fish and Seafood Merchant Wholesalers Salmon industry Nitrogen removal (Sewage purification) Organic compounds removal (Sewage purification) Batch processing Continuous processing Nitrates Seafood industry waste Industry & the environment keyword: C/N ratio Fishery effluents OLR Simultaneous denitrification/anaerobic digestion C/N ratio Fishery effluents OLR Simultaneous denitrification/anaerobic digestion ab: Abstract: Although simultaneous denitrification-anaerobic digestion has been studied extensively, the use of salmon effluents as organic matter source has received little attention. This study evaluated the effect of C/N ratio, nitrate concentration, and organic load rate (OLR) on simultaneous nitrate and organic matter removal using salmon effluents. The study was carried out in a batch reactor with suspended biomass at 37 °C and pH 7.5, and in continuous biofilm tubular reactors at 37 °C fed with a mixture of a synthetic substrate and a saline protein-rich salmon-plant effluent. The results of the batch and continuous experiments showed that nitrate abatement was greater than 95% at all the studied C/N ratios, without effect of the C/N ratio on NO–N transformation and ammonia production. An increase of nitrate concentration increased organic matter consumption as well as the hydrolytic rate. The organic matter reduction varied between 88% and 40% in the continuous process. For a continuous process, the increase of the OLR decreases the removal of organic matter. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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