Presentation of IWA Groundwater Specialist Conference 8-10 September 2011, Belgrade, Serbia - page 4



Groundwater status was presented for several countries, namely Serbia (Dimkić et al.., 2011b), Austria (Samek, 2011) and Iran (Raesi, 2011). In his invited paper, Raeisi presented both current and ancient groundwater management practices in Iran.

A large number of papers dealt with various aspects of groundwater quality and its control. Brauch & Richter (2011) reported on the occurrence and fate of new pesticide metabolites in groundwaters in Germany and elsewhere, while Levi et al. (2011)discussed the aerobic degradation potential of the herbicides mecoprop, dichlorprop and bentazone in groundwater from chalk aquifers. Tomšević et al. (2011) studied photocatalytic degradation of the insecticide methomyl in aqueous suspension of TiO2. Vasiljević et al. (2011) presented the current status and recent trends in methods for monitoring of pesticide residues in water, while Radović et al. (2011) reported on the results of a two-year survey of pharmaceutical residues in the Danube River Basin. Dujaković et al. (2011) presented a poster on pesticide residues in the Danube River.

Van Halem et al. (2011a) studied the influence of the multi-component groundwater matrix in the process of subsurface iron and arsenic removal for drinking water production, while Van Halem et al. (2011b) studied effects of accumulated deposits near subsurface iron removal wells on the catalyzation of the Fe2+ removal process. Uwamariya et al. (2011) studied effects of phosphate on chromium removal from groundwater by iron oxide based adsorbents while Bruins et al. (2011) carried out a critical review of manganese removal from groundwater within 100 manganese removal treatment plants, in the Netherlands, Belgium, Germany, Jordan and Serbia. Miljević et al. (2011) studied the origin of nitrate influence on a site in Serbia, by the combined determination of the isotopic ratios of nitrogen and oxygen. Salifu et al. (2011) studied fluoride occurrence in groundwater in the Northern Region of Ghana, where the presence of fluoride in groundwater beyond the 1.5mg/L has resulted in the closure of many otherwise successful boreholes for consumption in the region, in order to avoid the incidence of fluorosis.

Papić et al. (2011) presented a case study of the water quality as an indicator of hydrogeological conditions (Belgrade Water Source), while Nicolae and Verioti (2011) reported on the evolution of hydrogeological parameters and water chemistry of underground aquifers in one region in Rumania. Hernández et al. (2011) studied the effects of the soil aquifer treatment (SAT) technique for improving recharge water quality in Managed Aquifer Recharge systems, in the laboratory and field (on a 5600 m2 infiltration pond). Tevi G. and A. Tevi (2011) studied Remote Sensing and GIS techniques for assessment of soil water content in order to improve agricultural practice and reduce the impact on groundwater. The working methodology is based on the correlation of remote sensing data with field observations.

Mathematical models for groundwater flow and quality were dealt with in a significant number of papers. A complex water balance tool (computational techniques and models) was used by Cisotto et al. for studying a phreatic aquifer in North East Italy. Randjelović et al. (2011) made an attempt to quantify soil heterogeneity influence on aquifer recharge by using a vertical 1D numerical model (Richards equation) that was solved using both finite difference and finite element discretisation methods. Petrović and Polomčić (2011) used a hydrodynamic model based on Mod-Flow open-source software to study negative impacts on the environment of an inconsistent planning and partial problem-solving in the development of an urban area in Serbia. Vidović et al. (2011) presented a finite volume method for well-driven groundwater, in which well drains are represented by one-dimensional elements.

Kübeck et al. (2011) used a modelling tool that allows for assessment of future trends in raw water quality, to test the efficiency of agricultural measures as an instrument of quality improvement and to control the quality of measures by establishing a model based monitoring system. Caniani et al. (2011) presented a conceptual model based on a fuzzy logic approach that was applied to a region in Southern Italy for the assessment of the pollution risk of aquifers which underlie some uncontrolled landfills. Azizur Rahman et al. (2011) applied geostatistical methods using the Kriging interpolation technique to produce a simulated groundwater surface of Dhaka City to visualise groundwater level mining with the implementation of historical data.

Climate Change impacts on groundwater were discussed in several papers. In his invited paper, McBean (2011) gave an assessment of sustainability of groundwater in the developing world in a climate changing world, with Bangladesh as a case study. Bonacci (2011) discussed the groundwater problems caused by global change, while Castell-Exner (2011) concentrated on consequences of climate change and potential adaptation strategies to the water supply. Rojanschi et al. (2011) analyzed the need for new concepts in urban hydrology in the context of climate change. Four papers presented their results achieved to date under the SEE project entitled "Climate Changes and Impacts on Water Supply (CC- WaterS)", namely papers by Kurschnig et al. (2011), Dimkić D. et al. (2011a, 2011b ), and Radu E. and C. Radu (2011). Bettin et al. (2011) presented the management of coastal aquifers under climate change scenario with an outline of remediation actions to control salt intrusion (EU LIFE SALT project). Stevanović et al. (2011) presented the concept of Karst Aquifer serving as a "Buffer" for climate variations and changes. According to some estimates, around 20-25% of the world's population consumes groundwater originating from karstic aquifers. A similar situation exists in SE Europe and in Balkan countries.

Specific anthropogenic impacts on groundwater were dealt with in four papers. Lotram et al. (2011) reported on physical and chemical characterisation related to the transfer of pollutants from an old urban landfill to an underlying aquifer in France. Vojnović-Miloradov et al. (2011) reported on chemical reactions in the aquatic phase of a heterogeneous landfill system. Matić et al. (2011) presented some findings on the impact of an open sand pit located at the Belgrade Groundwater Source. Rončević et al. (2011) evaluated anthropogenic influences on groundwater supplies to the City of Novi Sad in Serbia). Fridrich and Dalmacija (2011) reported on organic xenobiotics in the groundwater layer near pig farms. Finally, Kažić et al. (2011) presented results of the examination of the bacterial populations in the water sampled at the outlets of 20 water coolers at different locations in Novi Sad.