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Sewage pollution: genotoxicity assessment and phytoremediation of nutrients excess with Hydrocotyle ranunculoides
- Source :
- Environmental monitoring and assessment. 189(4)
- Publication Year :
- 2016
-
Abstract
- The discharge of sewage effluents into low-order streams has negative effects on water quality. Macrophytes can be efficient in the treatment of this wastewater due to the removal of the main pollutants. The genotoxicity of sewage-polluted water discharging into La Choza stream was evaluated by testing with Allium cepa. Also, a phytoremediation assay with continuous recirculation of the residual water was conducted for 12 days. Three treatments were carried out. One treatment (Hr) was performed with a macrophyte (Hydrocotyle ranunculoides), and two treatments were conducted without macrophytes: with lighting (Ai) and without lighting (Ao). The wastewater was toxic according to all the evaluated indexes (mitotic index, frequency of chromosomal aberrations and micronucleus). High concentrations of ammonium, dissolved inorganic nitrogen (DIN), total (TP) and soluble reactive phosphorous (SRP) and indicators of faecal contamination were determined in the wastewater. The ammonium, DIN, SRP and TP loads at the end of the assay were significantly lower in the treatments with light (Hr and Ai). So, the nutrient removal was due to their absorption and adsorption by the periphyton and H. ranunculoides. Our results lead us to recommend the maintenance and planting of macrophytes in lowland streams subject to sewage pollution. Fil: Basílico, Gabriel Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad de Flores; Argentina Fil: Magdaleno, Anahí. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Paz, Marta Laura. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Moretton, Juan Agustin. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Faggi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad de Flores; Argentina Fil: de Cabo, Laura Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad de Flores; Argentina
- Subjects :
- 0301 basic medicine
Nitrogen
GENOTOXICITY
Sewage
010501 environmental sciences
Management, Monitoring, Policy and Law
NUTRIENTS
01 natural sciences
Waste Disposal, Fluid
Ciencias de la Tierra y relacionadas con el Medio Ambiente
03 medical and health sciences
Centella
Water Quality
Periphyton
MACROPHYTES
Effluent
0105 earth and related environmental sciences
General Environmental Science
DOMESTIC WASTEWATER
biology
business.industry
Water Pollution
Phosphorus
General Medicine
biology.organism_classification
Pollution
Macrophyte
Phytoremediation
030104 developmental biology
Biodegradation, Environmental
Wastewater
Environmental chemistry
Environmental science
Water quality
Hydrocotyle ranunculoides
business
Meteorología y Ciencias Atmosféricas
CIENCIAS NATURALES Y EXACTAS
Water Pollutants, Chemical
Environmental Monitoring
Subjects
Details
- ISSN :
- 15732959
- Volume :
- 189
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Environmental monitoring and assessment
- Accession number :
- edsair.doi.dedup.....54778adb80d21d32eb3dae5dfd3577d0