Key factors in the clogging process of horizontal subsurface flow constructed wetlands receiving anaerobically treated sewage.
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| Title: | Key factors in the clogging process of horizontal subsurface flow constructed wetlands receiving anaerobically treated sewage. |
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| Authors: | Matos, M.P.1 mateus.matos.deg@ufla.br, Sperling, M. von2 marcos@desa.ufmg.br, Matos, A.T.2 atmatos@desa.ufmg.br, Miranda, S.T.3 suymara.miranda@ufv.br, Souza, T.D.3 tamara.souza@ufv.br, Costa, L.M.4 liovandomc@yahoo.com.br |
| Source: | Ecological Engineering. Sep2017 Part A, Vol. 106, p588-596. 9p. |
| Subjects: | Anaerobic digestion, Constructed wetlands, Advection, Sewage purification, Biofilms |
| Abstract: | The influent solids load, biofilm formation and occupation of void spaces by precipitates have been identified as major contributors to clogging the pores of horizontal subsurface flow constructed wetlands (HSSF-CWs). Several publications suggest that most of the accumulated material is inorganic, and this indicates that wear of the substrate may be an important constituent of clogging. The objective of this study was to characterize, in mineralogical, physical (specific mass) and chemical terms (neutralization power and volatile and fixed solids) the clogging material from the pores and the substrate medium (blast furnace slag) in two small full-scale HSSF-CWs, one planted with cattail ( Typha latifolia ) and another kept unplanted. The system received urban wastewater pre-treated in an upflow anaerobic sludge blanket reactor, was operating for seven years and showed signs of heavy clogging leading to overland flow. Samples were collected at intermediate points along the two units in order to identify the origin of the accumulated material and thereby enable the proposition of a conceptual model for the clogging process of these systems. The results indicated that most of the mass of clogging solids were inorganic and originated from wear of the substrate. However, the volume occupied by the organic solids was larger, and those were the major contributors to the clogging process. [ABSTRACT FROM AUTHOR] |
| Copyright of Ecological Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 124526450 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Key factors in the clogging process of horizontal subsurface flow constructed wetlands receiving anaerobically treated sewage. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Matos%2C+M%2EP%2E%22">Matos, M.P.</searchLink><relatesTo>1</relatesTo><i> mateus.matos.deg@ufla.br</i><br /><searchLink fieldCode="AR" term="%22Sperling%2C+M%2E+von%22">Sperling, M. von</searchLink><relatesTo>2</relatesTo><i> marcos@desa.ufmg.br</i><br /><searchLink fieldCode="AR" term="%22Matos%2C+A%2ET%2E%22">Matos, A.T.</searchLink><relatesTo>2</relatesTo><i> atmatos@desa.ufmg.br</i><br /><searchLink fieldCode="AR" term="%22Miranda%2C+S%2ET%2E%22">Miranda, S.T.</searchLink><relatesTo>3</relatesTo><i> suymara.miranda@ufv.br</i><br /><searchLink fieldCode="AR" term="%22Souza%2C+T%2ED%2E%22">Souza, T.D.</searchLink><relatesTo>3</relatesTo><i> tamara.souza@ufv.br</i><br /><searchLink fieldCode="AR" term="%22Costa%2C+L%2EM%2E%22">Costa, L.M.</searchLink><relatesTo>4</relatesTo><i> liovandomc@yahoo.com.br</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ecological+Engineering%22">Ecological Engineering</searchLink>. Sep2017 Part A, Vol. 106, p588-596. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Anaerobic+digestion%22">Anaerobic digestion</searchLink><br /><searchLink fieldCode="DE" term="%22Constructed+wetlands%22">Constructed wetlands</searchLink><br /><searchLink fieldCode="DE" term="%22Advection%22">Advection</searchLink><br /><searchLink fieldCode="DE" term="%22Sewage+purification%22">Sewage purification</searchLink><br /><searchLink fieldCode="DE" term="%22Biofilms%22">Biofilms</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The influent solids load, biofilm formation and occupation of void spaces by precipitates have been identified as major contributors to clogging the pores of horizontal subsurface flow constructed wetlands (HSSF-CWs). Several publications suggest that most of the accumulated material is inorganic, and this indicates that wear of the substrate may be an important constituent of clogging. The objective of this study was to characterize, in mineralogical, physical (specific mass) and chemical terms (neutralization power and volatile and fixed solids) the clogging material from the pores and the substrate medium (blast furnace slag) in two small full-scale HSSF-CWs, one planted with cattail ( Typha latifolia ) and another kept unplanted. The system received urban wastewater pre-treated in an upflow anaerobic sludge blanket reactor, was operating for seven years and showed signs of heavy clogging leading to overland flow. Samples were collected at intermediate points along the two units in order to identify the origin of the accumulated material and thereby enable the proposition of a conceptual model for the clogging process of these systems. The results indicated that most of the mass of clogging solids were inorganic and originated from wear of the substrate. However, the volume occupied by the organic solids was larger, and those were the major contributors to the clogging process. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ecological Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ecoleng.2017.06.013 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 588 Subjects: – SubjectFull: Anaerobic digestion Type: general – SubjectFull: Constructed wetlands Type: general – SubjectFull: Advection Type: general – SubjectFull: Sewage purification Type: general – SubjectFull: Biofilms Type: general Titles: – TitleFull: Key factors in the clogging process of horizontal subsurface flow constructed wetlands receiving anaerobically treated sewage. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Matos, M.P. – PersonEntity: Name: NameFull: Sperling, M. von – PersonEntity: Name: NameFull: Matos, A.T. – PersonEntity: Name: NameFull: Miranda, S.T. – PersonEntity: Name: NameFull: Souza, T.D. – PersonEntity: Name: NameFull: Costa, L.M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2017 Part A Type: published Y: 2017 Identifiers: – Type: issn-print Value: 09258574 Numbering: – Type: volume Value: 106 Titles: – TitleFull: Ecological Engineering Type: main |
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