scholarly journals Long-Term Monitoring of a Surface Flow Constructed Wetland Treating Agricultural Drainage Water in Northern Italy

Water ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 644 ◽  
Author(s):  
Stevo Lavrnić ◽  
Ilaria Braschi ◽  
Stefano Anconelli ◽  
Sonia Blasioli ◽  
Domenico Solimando ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Drainage Water ◽  
Northern Italy ◽  
Surface Flow ◽  
Agricultural Drainage ◽  
Agricultural Drainage Water ◽  
Long Term Monitoring ◽  
Term Monitoring

scholarly journals Removal and fate of pesticides in a farm constructed wetland for agricultural drainage water treatment under Mediterranean conditions (Italy)

2021 ◽  
Author(s):  
Ilaria Braschi ◽  
Sonia Blasioli ◽  
Stevo Lavrnić ◽  
Enrico Buscaroli ◽  
Katia Di Prodi ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Drainage Water ◽  
Surface Flow ◽  
Agricultural Drainage ◽  
Rain Event ◽  
Order Model ◽  
Soil System ◽  
Agricultural Drainage Water ◽  
Wetland Water ◽  
Herbicide Glyphosate

AbstractA non-waterproofed surface flow constructed wetland (SFCW), treating agricultural drainage water in Northern Italy, was investigated to gain information on the potential ability for effective pesticide abatement. A mixture of insecticide imidacloprid, fungicide dimethomorph, and herbicide glyphosate was applied, by simulating a single rain event, into 470-m-long water course of the SFCW meanders. The pesticides were monitored in the wetland water and soil for about 2 months after treatment. Even though the distribution of pesticides in the wetland was not uniform, for each of them, a mean dissipation of 50% of the applied amount was already observed at ≤7 days. The dissipation trend in the water phase of the wetland fitted (r2 ≥ 0.8166) the first-order model with calculated DT50 of 20.6, 12.0, 5.8, and 36.7 days for imidacloprid, dimethomorph, glyphosate, and the glyphosate metabolite AMPA, respectively. The pesticide behavior was interpreted based on the chemical and physical characteristics of both the substances and the water-soil system. Despite the fast abatement of glyphosate, traces were detected in the water until the end of the trial. The formation of soluble 1:1 complex between glyphosate and calcium, the most representative cation in the wetland water, was highlighted by infrared analyses. Such a soluble complex was supposed to keep traces of the herbicide in solution.

Groundwater Contamination from Agricultural Sources in Northern Italy: Long-Term Monitoring and Mathematical Modelling

1993 ◽  
Vol 28 (3-5) ◽  
pp. 369-377 ◽  
Author(s):  
Luigi Fortina ◽  
Andrea G. Capodaglio ◽  
Marco Baldi
Keyword(s):  
Potable Water ◽  
Northern Italy ◽  
Government Regulations ◽  
Monitoring Process ◽  
History Of ◽  
Long Term Monitoring ◽  
Almost All ◽  
External Interventions ◽  
Term Monitoring

The province of Pavia, in Northern Italy, is an intensively cultivated agricultural area with substantial urban development Groundwater supplies constitute almost all the potable water available to the resident population. Concern exists about the fate of herbicides applied to farm fields that have been found in measurable quantities in drinking water supplies. This paper describes at first the general environmental conditions and land use activity pattern in which the diffuse contamination occurs, history of contaminant detection is correlated to external interventions, such as government regulations, and the findings of the monitoring process are then illustrated. A mathematical model of groundwater transport is then illustrated and its predictions are compared with monitoring findings.

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