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Excess of phosphorus in surface water is a global problem. Phosphorus found in rivers, streams, agricultural ditches and lakes comes from both point and diffuse sources. To keep water bodies in a good ecological status it is necessary to manage it a at local level. One of the possible solutions is to use reactive materials in wastewater treatment plants as well as in case of diffuse sources of pollution...
The hydraulic conductivity of zero-valent iron treatment zone of permeable reactive barriers (PRBs) may be decreased by reducing the porosity caused by gas production and solids precipitation. The study was undertaken in order to evaluate the influence of chloride and heavy metals on the hydraulic conductivity of ZVI and nZVI using hydraulic conductivity tests as well as continuous column tests. Results...
The study area is located in the southern part of the Warsaw city agglomeration, adjacent to the Chojnowski Landscape Park. The study area is situated in the boundary zone between: (1) the bottom of the river valley reach with peat cover and (2) the Pleistocene glaciofl uvial plain on its lower level. The main aim of the study is the analysis of the investment impact on hydrogeological conditions...
Thermal and snowy conditions in Zagożdżonka River catchment during hydrological years 2003–2013 and winter floods are presented in paper. The meteorological and hydrological data, such as maximum, minimum, mean diurnal air temperatures, daily snow cover depth, and water discharge, collected at Czarna station (WULS-SGGW) have been used. Meteorological conditions were analyzed using indexes proposed...
The paper presents the results of measurements of some chemical properties for 14 drained fen peat-moorsh layers taken from north-east, central and east part of Poland. These areas were drained in order to use as a grassland and most of them in former time were under subirrigation systems. The following basic chemical properties were analysed: organic C, total N, C:N ratio, pH and ash content. In...
The aim of this paperwork was the potential risk assessment from farming for natural-valuable ecosystems in Natura 2000 area, based on selected production and environment indicators. There were selected 75 farms located in Dąbrowy Krotoszyńskie (PLH300002) and in zone of direct effect on the NATURA 2000 area, in the Wielkopolska province. In the research data from years 2004–2011 were used. Dąbrowy...
The results of permeability and compressibility tests of the fly ash from Skawina Power Plant were presented in the paper. These tests were carried out in the aspect of its usage in filtration barriers in municipal and industrial waste landfi lls. It was stated that the tested fly ash can not be used for fi ltration barriers, mainly because of granulation and fi ltration criteria. Although, the addition...
Soft soils, exhibiting low strength properties in the case of external load, require improvement. Chemical stabilization is easy in preparing and presents very good results in improving mechanical properties. In this paper, results of CBR and unconfi ned compressive strength test are presented for cohesive soil – sandy clay. Stabilization medium was Reymix, which is a cement derivative. Conducted...
Road complex which includes a road network with traffic, road services, car repair businesses, and enterprises for the production of fuels and materials for the repair of roads, is an important source of environmental pollution, and the degree of contamination depends on the quality of the road pavement. The present research is aimed to find the interaction between the amount of emissions into the...
The determination of the sludge fertilising influence for the growth and composition of the urban grasslands’ swards and heavy metals concentration in above-ground parts of the plants was the aim of the study. The study was conducted on four research plots along the main roads in Białystok. The plots were seeded with two mixtures of lawn grasses (Eko and Roadside) and three doses of sludge were applied:...
The article presents changes in thermal and precipitation conditions on Polish territory in the years 1971–2010 based on data from six meteorological stations (Koszalin, Olsztyn, Poznań, Lublin, Opole and Kraków). These data concern the monthly average air temperature, precipitation and the number of days with precipitation per month. Based on the analysis of changing trends in the study of meteorological...
The article presents the results of research conducted in order to create nomographs allowing assessment of slope stability. The proposed recommendations involve graphs and charts, where factor of safety (FOS) is computed in according to six different characteristics: slope height and angle, slope surface vegetation cover, applied surcharge, position of water table, soil mechanical conditions. For...
Research presents usability of the River Habitat Survey (RHS) evaluation method in forecasting effects of the Zielawa River restoration, performed in selected section between 18 + 960 km and 19 + 460 km. The EU so-called Water Framework Directive signalizes necessity of achieving a good ecological status of European rivers in the immediate future. Accordingly, river restoration is the main tool for...
The sizing of a storage reservoir, in order to reduce maximum water discharges in stormwater drainage systems, is one of the major topics in the civil engineering. In this article a methodology that allows identifying an optimal capacity of a pipe reservoir is proposed. Applying a simplified water flow model it was possible to bind various reservoir’s parameters (a reservoir diameter, a diameter of...
The Central and Eastern Europe (CEE) is one of the European regions seriously vulnerable to drought events and there is an urgent need in the region to develop better drought management systems. In February 2013 the Global Water Partnership for Central and Eastern Europe region launched the Integrated Drought Management Programme (IDMP CEE) involving more than 40 organizations from 10 CEE countries...
The study tests the ability of hydrological part of SEGMO (SedimentGraph Model), i.e. lumped parametric rainfall-runoff procedure of SEGMO to simulate design storm runoff in a Korean catchment. The aim of the investigation is to predict responses of small catchment of the Jeungpyeong river, located in central part of South Korea, with the area of 133.6 km2, to 100-year rainfall events, applying SEGMO...
This study developed a hybrid wavelet–bootstrapartifi cial neural network (WBANN) model for weekly (one week) urban water demand forecasting in situations with limited data availability. The proposed WBANN method is aimed at improving the accuracy and reliability of water demand forecasting. Daily maximum temperature, total precipitation and water demand data for almost three years were used in this...
The study uses ozone concentrations from stations in Warsaw Agglomeration and its vicinity. Diversity of localizations of considered station, in terms of type of emissivity, allows on comparison of air pollution conditions by ozone in Warsaw area. Concentration of ozone in summer and spring were above twice greater than the concentration in autumn and winter. The greatest differences between weekend...
The paper presents an analysis of the impact of meteorological factors (solar radiation, maximum, minimum and mean temperature, precipitation) on the development and yield of yellow lupin Parys cultivar in the northern Poland in the years 1987–2008. Using multiple regression methods (linear and quadratic function) created regression equations that were estimated using the coeffi cients of determination...
One year after the Xynthia storm surge, which struck the Vendée and the Charente-Maritime counties of the French Atlantic Coast in the night of 27/28 February 2010, French authorities implemented a national plan for mitigation and management of the flash submersions (MEDDTL 2011). In this paper authors analyse partial results of this plan after almost three years of its effectiveness in the perspective...
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