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Πεδίο DCΤιμήΓλώσσα
dc.contributor.authorAndra, Syam S.-
dc.contributor.authorQuazi, Shahida-
dc.contributor.authorSarkar, Dibyendu-
dc.contributor.authorDatta, Rupali K.-
dc.contributor.authorBach, Stephan B H-
dc.contributor.authorMakris, Konstantinos C.-
dc.date.accessioned2015-03-20T08:02:36Z-
dc.date.accessioned2015-12-08T11:09:11Z-
dc.date.available2015-03-20T08:02:36Z-
dc.date.available2015-12-08T11:09:11Z-
dc.date.issued2010-06-
dc.identifier.citationEnvironmental Science and Pollution Research, 2010, vol. 17, no. 5, pp. 1167-1173en_US
dc.identifier.issn16147499-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/3615-
dc.description.abstractBackground, aim, and scope: Organoarsenical-containing animal feeds that promote growth and resistance to parasites are mostly excreted unchanged, ending up in nearby wastewater storage lagoons. Earlier work documented the partial transformation of organoarsenicals, such as, 3-nitro-4-hydroxyphenylarsonic acid (roxarsone) to the more toxic inorganic arsenate [As(V)] and 3-amino-4-hydroxyphenylarsonic acid (3-AHPAA). Unidentified roxarsone metabolites using liquid chromatography coupled to inductively coupled plasma mass spectrometry (LC/ICP-MS) were also inferred from the corresponding As mass balance. Earlier batch experiments in our laboratory suggested the presence of organometallic (Cu) complexes during relevant roxarsone degradation experiments. We hypothesized that organocopper compounds were complexed to roxarsone, mediating its degradation in field-collected swine wastewater samples from storage lagoons. The objective of this study was to investigate the role of organometallic (Cu) complexes during roxarsone degradation under aerobic conditions in swine wastewater suspensions, using electrospray ionization mass spectrometry (ES-MS). Materials and methods: Two swine wastewater samples differing in % solids content and total recoverable Cu concentrations were reacted with 500 ppb of roxarsone under aerobic conditions for 16 days. LC/ICP-MS and ES-MS were used for As speciation analyses, and characterization of metal-organoarsenical complexes in swine wastewater subsamples, respectively. Results and discussion: An organocopper roxarsone metabolite was found only in the high-Cu wastewater sample, suggesting the role of Cu in roxarsone degradation under aerobic conditions. The organocopper metabolite was not found in the low-Cu wastewater sample, because roxarsone did not undergo degradation under aerobic conditions even after 16 days. Conclusions: Aerobic degradation of organoarsenicals (roxarsone) has not been documented before. Preliminary dataset from this study illustrates the direct and/or indirect association of particulate Cu in catalyzing roxarsone degradation under aerobic conditions in samples with high % solids content. Recommendations and perspectives: Concerns regarding the degradation of roxarsone in wastewater to the more toxic inorganic As may be partially linked to the presence of particulate Cu. The presence of Cu in wastewater-suspended particle surfaces has never been coupled before to organoarsenicals degradation reactions, thus, further studies are needed to elucidate the related reaction mechanisms and pathways. Water depth-dependent solid particle distribution profiles in wastewater storage lagoons could provide empirical evidence towards the design of effective degradation practices for nitrophenol-containing compounds, such as, organoarsenical-containing antibiotics, or explosive munitions compounds.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofEnvironmental Science and Pollution Researchen_US
dc.rights© Springeren_US
dc.subjectAnimal wasteen_US
dc.subjectAntibioticsen_US
dc.subjectCopperen_US
dc.subjectDegradationen_US
dc.subjectEnvironmental healthen_US
dc.subjectExplosivesen_US
dc.subjectNitrophenolsen_US
dc.subjectOrganoarsenicalsen_US
dc.subjectRemediationen_US
dc.titleOrganocopper complexes during roxarsone degradation in wastewater lagoonsen_US
dc.typeArticleen_US
dc.collaborationUniversity of Texasen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationUniversity of Minnesotaen_US
dc.collaborationMontclair State Universityen_US
dc.collaborationMichigan Technological Universityen_US
dc.subject.categoryEarth and Related Environmental Sciencesen_US
dc.journalsSubscriptionen_US
dc.reviewPeer Revieweden
dc.countryCyprusen_US
dc.countryUnited Statesen_US
dc.subject.fieldNatural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1007/s11356-009-0281-7en_US
dc.dept.handle123456789/108en
dc.relation.issue5en_US
dc.relation.volume17en_US
cut.common.academicyear2009-2010en_US
dc.identifier.spage1167en_US
dc.identifier.epage1173en_US
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn1614-7499-
crisitem.journal.publisherSpringer Nature-
crisitem.author.deptDepartment of Rehabilitation Sciences-
crisitem.author.facultyFaculty of Health Sciences-
crisitem.author.orcid0000-0001-5251-8619-
crisitem.author.parentorgFaculty of Health Sciences-
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