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dc.creatorDEMERGASSO-SEMENZATO, CECILIA SUSANA
dc.creatorESCUDERO-GONZALEZ, LORENA VICTORIA
dc.creatorGALLEGUILLOS-PEREZ, PEDRO ANTONIO
dc.creatorZEPEDA-ALVAREZ, VICTOR JOSE
dc.date.accessioned2016-08-19T18:09:22Z
dc.date.available2016-08-19T18:09:22Z
dc.identifier.urihttp://hdl.handle.net/10533/114363
dc.description.abstractThe invention discloses a biotechnological process for the treatment of hydroxide sludge containing As produced in potable water production processes which use FeCl3 as a coagulant, through the action of sulfate reducing bacteria, comprising the following stages: a.—preparation of a sulfate reducing microorganisms (SRB) culture for the process, said culture coming from the same sludge to be treated; b.—combining in an anaerobic bioreactor and for an approximate period of 5 days, the sludge to be treated, the inoculum obtained in stage (a) and nutrients such as ethanol, sulfate and yeast, at a controlled temperature and with enough mixing to allow sludge homogenization in a way that no untreated zones remain; c.—decanting the treated sludge for a period of approximately 3 days, recovering the clarified liquid and subjecting the sediment to a dewatering process through filtration or centrifugation; d.—filtrating the solid residue coming from the decanter; e.—characterizing the final residue. The developed biotechnological treatment process seeks to modify the physicochemical properties of the produced sludge in such a way to facilitate the use of mechanical dehydration methods that allow decreasing the sludge volume and facilitating its final disposal.
dc.language.isoeng
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relation.urihttps://www.google.ch/patents/US20080000831?hl=de
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile
dc.titleBIOTECHNOLOGICAL PROCESS FOR THE TREATMENT OF-CONTAINING HYDROXIDE SLUDGE RESULTING FROM POTABLE WATER TREATMENT BACTERIA
dc.typePatente
dc.contributor.corporatenameUNIVERSIDAD CATOLICA DEL NORTE
dc.identifier.folioD99I1026
dc.description.statusCONCEDIDA
dc.country.isoUSA
dc.identifier.patentUS20080000831 A1
dc.identifier.requestnoUS 11/769,388
dc.relation.projectidinfo:eu-repo/grantAgreement/Fondef/D99I1026
dc.relation.setinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93485
dc.type.driverinfo:eu-repo/semantics/patent
dc.type.patdocPATENTE
dc.date.isosolic20070627
dc.date.isocon2008


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