Horizontal subsurface flow constructed wetlands for tertiary treatment of dairy wastewater
| Autor: | María Cecilia Panigatti, María Celeste Schierano, Maria Alejandra Maine |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Typha domingensis
Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente 0208 environmental biotechnology 02 engineering and technology Plant Science Wastewater 010501 environmental sciences Waste Disposal Fluid 01 natural sciences Ciencias de la Tierra y relacionadas con el Medio Ambiente Phragmites chemistry.chemical_compound Nitrate Environmental Chemistry MACROPHYTES Effluent 0105 earth and related environmental sciences WETLANDS Suspended solids biology Chemical oxygen demand Pulp and paper industry biology.organism_classification Pollution 020801 environmental engineering Biodegradation Environmental chemistry Wetlands DAIRY WASTEWATER Environmental science Sewage treatment Water Pollutants Chemical CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | International Journal of Phytoremediation. 20:895-900 |
| ISSN: | 1549-7879 1522-6514 |
| Popis: | The aim of this work was to evaluate the efficiency of horizontal subsurface flow constructed wetlands (HSFCWs) planted with Typha domingensis and Phragmites australis in the final treatment of dairy wastewater. Ten microcosms-scale reactors simulating HSFCWs were arranged outdoors under a semi-transparent plastic roof. Five replicates were planted with T. domingensis and five with P. australis. In both cases, light expanded clay aggregate (LECA) 10/20 was used as a substrate. Real effluent with previous treatment was used. In order to evaluate contaminant removal efficiencies in each reactor, pH, electrical conductivity, suspended solids, ammonium, nitrate, nitrite, total phosphorus, and chemical oxygen demand (COD) were analyzed before and after treatment. HSFCWs planted with T. domingensis and P. australis were efficient for the final treatment of dairy wastewater. Removal efficiencies obtained in microcosms planted with both macrophytes were over 96% for ammonium and nitrite. Nitrate removal efficiency was 39%. COD decreased along the experiment near 75% for both treatments. High removal percentages for suspended solids (78.4–81.1%) were also achieved. However, systems planted with T. domingensis were significantly more efficient for total phosphorus removal (88.5%) than those planted with P. australis (71.6%). Fil: Schierano, María Celeste. Universidad Nacional del Litoral. Instituto de Química Aplicada del Litoral. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Química Aplicada del Litoral.; Argentina. Universidad Tecnológica Nacional. Facultad Regional Rafaela; Argentina Fil: Panigatti, Maria Cecilia. Universidad Tecnológica Nacional. Facultad Regional Rafaela; Argentina Fil: Maine, Maria Alejandra. Universidad Nacional del Litoral. Instituto de Química Aplicada del Litoral. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Química Aplicada del Litoral.; Argentina |
| Databáze: | OpenAIRE |
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