Changes in water quality of treated sewage effluents by their receiving environments in Tablas de Daimiel National Park, Spain
| Autor: | Maximo Florin Beltran, David Sanchez-Ramos, Gema Sánchez-Emeterio |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Health
Toxicology and Mutagenesis Parks Recreational 0208 environmental biotechnology Sewage Wetland 02 engineering and technology 010501 environmental sciences 01 natural sciences Waste Disposal Fluid Water Purification Water Quality Tributary Environmental Chemistry Effluent 0105 earth and related environmental sciences Hydrology geography geography.geographical_feature_category business.industry General Medicine Pollution 020801 environmental engineering Macrophyte Wastewater Spain Wetlands Environmental science Sewage treatment Water quality business Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental science and pollution research international. 23(7) |
| ISSN: | 1614-7499 |
| Popis: | The Tablas de Daimiel National Park (TDNP), a floodplain wetland located in the Upper Guadiana Basin (central Spain), receives pollution from wastewater treatment plants (WWTPs) discharging their treated sewage effluents (TSEs) to tributary channels to the wetland. The TSEs suffer transformations on their way to the TDNP, but the water quality is controlled only at the point of discharge. In this work, we analyse the change in water quality of the TSE from four urban WWTPs in the surroundings of the TDNP (Alcazar de San Juan, Daimiel, Manzanares and Villarrubia de los Ojos towns). The water samples were taken at the outlet of the plants and in the receiving environments, to analyse the water quality transformation of the TSE. The different discharge configurations of each WWTP have been related with the water quality transformation of their TSE, to interpret the influence of the hydro-geomorphology in the improvement or deterioration of the water quality of TSE. We found that the discharge of TSE into slow flow channels with macrophyte vegetation facilitates water self-purification but, with time, the accumulation of sludge in the beds of the effluents tends to be the cause of the deterioration of the water quality. |
| Databáze: | OpenAIRE |
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