title: Several natural indicators of radial well ageing at the Belgrade groundwater source, part 1.
abstract: Over time, the radial collector wells of the Belgrade Groundwater Source, located in the alluvial sediments of the Sava River, exhibit a decline in discharge and a reduction in operating efficiency due to well ageing. An increase in hydraulic losses at the lateral screens, due to chemical and biochemical clogging, has been identified as the primary cause. Certain hydrogeological, hydrochemical and microbiological parameters reflect the well-ageing process and can, therefore, be considered as its indicators. An indicator-based determination of scale is an important aspect in the selection of appropriate well locations, structural characteristics, and maintenance approaches. Well ageing was studied over a period of 5 years (2005-2009). The objective was to investigate the causes of well ageing. The correlations established between the groundwater redox potential, the total iron concentration in groundwater, the grain-size distribution of the aquifer, and well discharge, are presented in the paper.
authors: Jaroslav Cerni Institute for the Development of Water Resources, Jaroslava Cernog 80, 12226 Pinosava, Belgrade, Serbia.
authors: M
authors: M
authors: Dimkić
authors: M
authors: M
authors: Pusić
authors: D
authors: D
authors: Vidovic
authors: A
authors: A
authors: Petković
authors: D
authors: D
authors: Boreli-Zdravković
mesh_terms: D004784:Environmental Monitoring / Q000379:methods*; D045483:Rivers; D055771:Serbia; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014881:Water Supply / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D014867:Water