Spatial variation of physicochemical parameters in a constructed wetland for wastewater treatment: An example of the use of the R programming language
| Autor: | Rachel Ardón Rivera, Sofía Flores Aguilar, Catalina Solís Calderón, Addy Echevarría Figueroa, Carola Scholz, Junior Pastor Pérez-Molina, Jeslyn Carranza Chaves, Carolina Alfaro-Chinchilla, Leandro Araya Leitón, Ana Abarca Méndez, Mariana Elizondo Blanco, Roy Pérez-Salazar |
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| Rok vydání: | 2021 |
| Předmět: |
biology
R Programming Language Environmental engineering Pennisetum alopecuroides lcsh:A biology.organism_classification Artificial Wetland System of superficial Flow Artificial Wetland System of subsuperficial Flow oxígeno disuelto Reduction potential Wastewater dissolved oxygen conductividad Constructed wetland potencial de oxidación-reducción Environmental science Sewage treatment Spatial variability conductivity lcsh:General Works oxidation-reduction potential sistema de humedales artificiales de flujo sub-superficial |
| Zdroj: | UNED Research Journal; Vol. 13 No. 1 (2021); e3294 UNED Research Journal; Vol. 13 Núm. 1 (2021); e3294 Portal de Revistas UNED Universidad Estatal a Distancia instacron:UNED Cuadernos de Investigación UNED, Volume: 13, Issue: 1, Article number: e3294, Published: JUN 2021 Cuadernos de investigación UNED, Vol 13, Iss 1 (2021) |
| ISSN: | 1659-441X 1659-4266 |
| Popis: | Introduction:The implementation of wastewater treatment systems such as constructed wetlands has a growing interest in the last decade due to its low cost and high effectiveness in treating industrial and residential wastewater.Objective:To evaluate the spatial variation of physicochemical parameters in a constructed wetland system of sub-superficial flow ofPennisetumalopecuroides(Pennisetum) and a Control (unplanted). The purpose is to provide an analysis of spatial dynamic of physicochemical parameters usingRprogramming language.Methods:Each of the cells (Pennisetumand Control) had 12 piezometers, organized in three columns and four rows with a separation distance of 3,25m and 4,35m, respectively. The turbidity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), totalKjeldahlnitrogen (TKN), ammoniacal nitrogen (N-NH4), organic nitrogen (N-org.) and phosphorous (P-PO4-3) were measured in water under in-flow and out-flow of both conditions Control andPennisetum(n= 8).Additionally, the oxidation-reduction potential (ORP), dissolved oxygen (DO), conductivity, pH and water temperature, were measured (n= 167) in the piezometers.Results:No statistically significant differences between cells forTKN, N-NH4, conductivity, turbidity, BOD, and CODwere found; butboth Control andPennisetumcellsshowed a significant reduction in these parameters (P0,05); pero ambas celdas presentaron una reducción significativa en estos parámetros (p |
| Databáze: | OpenAIRE |
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