Universiteto leidyba / University's Publishing: Recent submissions
Now showing items 21-40 of 4783
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Risk management methods in hot water distribution systems to negate health risks from microbiological contamination
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Water distribution systems are exposed to a number of risks, i.e. hazards and hazardous events that may result in bad drinking water quality. Microbiological contamination due to e.g. source water contamination, insufficient ... -
Influence of slurry on organic matter fluctuation in groundwater
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The paper analyses the data on the change of the groundwater organic matter content in the observed boreholes, equiped in light soils fertilized with the slurry from pig-breeding enterprise. The investigations aimed to ... -
The trends of drainage runoff change in loam soils during a multiyear period
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The article presents the influence of fluctuation of the main climatic factors over time on drainage runoff, the analysis of drainage runoff distribution in the course of a year. For the preparation of the present paper ... -
Seasonal changes of phosphorus concentrations in lime filter drainage water
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The drainage outflow may be identified as the leading source of water quality in agricultural regions. Phosphorus concentrations above background levels increase the risk of eutrophication in water bodies. Various technologies ... -
Efficiency of petroleum products removal from aqueous mixtures with different sorbent materials
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The aim of this paper was to investigate the performance parameters and efficiency of different sorbent materials (FIBROIL® and DUCK) for oil removal from aqueous mixtures and natural surface runoff water in dynamic mode. ... -
The research of deformation processes in regulated streams
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Different kinds of deformation occur in the most regulated rivers and stream channels. That courses the changes of stream channels in cross-sectional and longitudinal profiles. Regulated streams banks overgrow with dense ... -
The impact of rural settlements on water quality in small rivers and drainage channels
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)According to the requirements of the EU Water Framework Directive 2000/60/EC, good water quality in all EU countries should have been achieved by 2015. One of the most important environmental problems is river pollution ... -
The influence of lithological structure on river runoff in the South-Eastern Lithuanian hydrologic area
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Due to the recently increasing frequency of extreme changes in river runoff regime, scientific literature deals with the characteristics of runoff formation. Works are carried out in analyzing climate changes and a lot of ... -
Evaluation method of groundwater qualitative and quantitative fluctuations in the small river cathments of urbanized territories
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Preservation of groundwater resources and improvement of its quality are the main environmental problems of urbanized territories. The increasing levels of pollution reduce the number of surface water basins suitable for ... -
Application of hydrodynamic cavitation for leachate of municipal landfill site
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Landfill leachate is generated as a result of rainwater percolating through the landfilled waste and leaching organic and inorganic compounds formed during landfill transformation. Typically, landfill leachate is characterized ... -
Start-up of trickling filters using novel filter medium under low temperature conditions
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Start-up of three pilot scale trickling filters (3.05 m in height and 0.6 m (1 TF), 0.8 m (2 TF) and 1.0 m (3 TF) in diameter) using the stone-wool substrate medium at low wastewater temperature (2.5–8.5 ºC) was investigated ... -
Influence of the Klaipėda Seaport development on the water balance of the Curonian Lagoon
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Klaipėda Seaport is near the Klaipėda Strait that joins the Baltic Sea with the Curonian Lagoon. The development of Klaipėda Seaport is implemented by the dredging of the fairway of the Klaipėda Strait and the building of ... -
Rudinė river environmental state‘s assesment and improvement
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)This article analyses the Ignalina city wastewater treatment plant‘s (WWTP) impact on water quality of the river Rudinė and presents assessment of environmental quality of this surface water body. Assessment is based on ... -
Hydraulic characteristics of the plastic pipes of drainage colletors
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)In Lithuania, plastic drain pipes are being used when building new land reclamation systems or reconstructing already existing. It is connected with the better constructions and technological characteristics of plastic ... -
Wastewater treatment plant hydraulic performance improvement
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Sloka WWTP case study. The effluent suspended solids concentration is important parameter as the high fraction of organic matter, nitrogen and phosphorus are in suspended form, and to avoid suspended solids particle escaping ... -
Oxygen transfer rate and bod removal efficiency of constructed wetlands with dependence on construction
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Most cases of wastewater treatment involve three main types of constructed wetlands (CW). They are free-water surface wetlands (FWF) and subsurface flow CW including filters of vertical flow (SVF) and horizontal flow (SHF). ... -
The influence of morphometric characteristics on the functional usage of Lithuanian lakes
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Functional usage of lakes is the usage of lake shores and water area in order to meet different needs of people. A lot of factors influence the suitability of a lake for certain activities, i.e. geographical position of a ... -
Method for evaluation water budget in small river catchments
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The atmospheric water infiltrating the underground predetermines the water storage of large and small rivers, groundwater and inter-stratum water supplies and base-flow. Climate fluctuation cycles affect the natural ... -
Riparian buffer strips – foreign experience and readjustment to lithuanian conditions
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Intensification of agricultural activity, increasing areas of cultivable land and reclamation works in the river valleys (canalizing and deepening of the river bed, installation of drainage systems) have a significant ... -
Modeling of hydraulic conductivity in the regulated streams of southeast Lithuania
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The presented work aims to evaluate the changes in hydraulic conductivity and the planning possibilities for the naturalization of regulated streams in the Southeast Lithuania. The investigations have been carried out in ...