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  • Seasonal assessment of experimental vertical-flow constructed wetlands treating domestic wastewater.

    Author(s) : Sani, A.Scholz, M.Bouillon, L.

    Author Affiliation : Civil Engineering Research Group, School of Computing, Science and Engineering, The University of Salford, Newton Building, Salford M5 4WT, UK.

    Author Email : a.sani@edu.salford.ac.ukm.scholz@salford.ac.ukludivine.bouillon@ensil.unilim.fr

    Journal article : Bioresource Technology 2013 Vol.147 pp.585-596 ref.29

    Abstract : The aim of this work was to compare the impactimpactSubject Category: Properties
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    of different design (aggregate size) and operational (contact time, empty time and chemical oxygen demandchemical oxygen demandSubject Category: Properties
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    (COD) loading) variables on the long-term and seasonal performanceperformanceSubject Category: Properties
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    of vertical-flow constructed wetland filtersfiltersSubject Category: Techniques, Methodologies and Equipment
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    operated in tidal flow mode. Compliance was achieved regarding ammoniaammoniaSubject Category: Chemicals and Chemical Groups
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    -nitrogennitrogenSubject Category: Chemicals and Chemical Groups
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    , nitrate-nitrogen and suspended solidssuspended solidsSubject Category: Miscellaneous
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    (SS), and non-compliance concerning biochemical oxygen demandbiochemical oxygen demandSubject Category: Properties
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    (BOD) and ortho-phosphate-phosphorusphosphorusSubject Category: Chemicals and Chemical Groups
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    . The filter with the highest COD loading performed the best regarding outflow COD concentration. Higher COD inflow concentrations had a significantly positive impact on the treatment performance for COD, ortho-phosphate-phosphorus and SS. The wetland with the largest aggregate size had the lowest mean nitrate-nitrogen outflow concentration. However, the results were similar regardless of aggregate size and resting time for most variables. Clear seasonal outflow concentration trends (low in summersummerSubject Category: Time Periods
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    summerSubject Category: Climate Related
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    ) were recorded for COD, ammonia-nitrogen and nitrate-nitrogen. No filter clogging was observed.

    ISSN : 0960-8524

    DOI : 10.1016/j.biortech.2013.08.076

    Record Number : 20133393090

    Publisher : Elsevier Ltd

    Location of publication : Oxford

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Descriptor(s) : ammoniaammoniaSubject Category: Chemicals and Chemical Groups
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    , artificial wetlandsartificial wetlandsSubject Category: Miscellaneous
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    , assessmentassessmentSubject Category: Techniques, Methodologies and Equipment
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    , biochemical oxygen demandbiochemical oxygen demandSubject Category: Properties
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    , chemical oxygen demandchemical oxygen demandSubject Category: Properties
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    , effectseffectsSubject Category: Properties
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    , effluentseffluentsSubject Category: Commodities and Products
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    , filtersfiltersSubject Category: Techniques, Methodologies and Equipment
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    , impactimpactSubject Category: Properties
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    , nitrogennitrogenSubject Category: Chemicals and Chemical Groups
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    , oxygenoxygenSubject Category: Chemicals and Chemical Groups
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    , performanceperformanceSubject Category: Properties
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    , phosphorusphosphorusSubject Category: Chemicals and Chemical Groups
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    , requirementsrequirementsSubject Category: Properties
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    , summersummerSubject Category: Climate Related
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    , suspended solidssuspended solidsSubject Category: Miscellaneous
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    , waste treatmentwaste treatmentSubject Category: Miscellaneous
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    , wastewaterwastewaterSubject Category: Commodities and Products
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    , wastewater treatmentwastewater treatmentSubject Category: Miscellaneous
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    , water treatmentwater treatmentSubject Category: Techniques, Methodologies and Equipment
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    , wetlandswetlandsSubject Category: Habitats
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    Identifier(s) : BOD, constructed wetlands, waste water, waste water treatment, waste-water treatment