The Influence of YataÄźan Power Plant Ashes on the Properties of Nearby Soils
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2012)
Coal-fired power plants are used to meet the energy need of the country. However, fly and bottom ash originate as combustion residues from these plants. The amount of each residue depends on the power plant configuration and on the emission control device used at the plant
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2012)
Coal-fired power plants are used to meet the energy need of the country. However, fly and bottom ash originate as combustion residues from these plants. The amount of each residue depends on the power plant configuration and on the emission control device used at the plant
Alternatives to wheeled loaders: Tracked conveyors and program-controlled conveyor belts have advantages:
© Deutscher Fachverlag (DFV) (6/2010)
Wheeled loaders are still indispensable working machines in many companies – also in construction material recycling plants. They are used because of the long operating hours they are capable of. In addition to the final loading, in many cases intermediate stockpiles are created, although these can result in considerable costs and risks.
© Deutscher Fachverlag (DFV) (6/2010)
Wheeled loaders are still indispensable working machines in many companies – also in construction material recycling plants. They are used because of the long operating hours they are capable of. In addition to the final loading, in many cases intermediate stockpiles are created, although these can result in considerable costs and risks.
Chemical fractionation and phytoextraction capacity of maize plant grown on chromated copper arsenate soil
© Aristotle University of Thessaloniki (6/2009)
A pot experiment was performed to study the single and sequential extraction of As, Cr and Cu in chromated copper arsenate (CCA) contaminated soil and the potential of maize (Zea mays) for the removal of the metals from the CCA contaminated soil.
© Aristotle University of Thessaloniki (6/2009)
A pot experiment was performed to study the single and sequential extraction of As, Cr and Cu in chromated copper arsenate (CCA) contaminated soil and the potential of maize (Zea mays) for the removal of the metals from the CCA contaminated soil.
The influence of soil to solution ratio on cadmium removal from soils using anionic surfactants
© Aristotle University of Thessaloniki (6/2009)
The effectiveness of cadmium removal from soils by two anionic surfactants at different soil/solution ratio (m/V) was investigated. At critical micelle concentration (CMC) Rosulfan L reduced surface tension of water more sufficiently than ABS Na/S. In soil/surfactant systems CMC values clearly increased in comparison with fresh solutions, indicating surfactants sorption.
© Aristotle University of Thessaloniki (6/2009)
The effectiveness of cadmium removal from soils by two anionic surfactants at different soil/solution ratio (m/V) was investigated. At critical micelle concentration (CMC) Rosulfan L reduced surface tension of water more sufficiently than ABS Na/S. In soil/surfactant systems CMC values clearly increased in comparison with fresh solutions, indicating surfactants sorption.
Application of computer modelling for forecasting of contaminants distribution in soil
© Aristotle University of Thessaloniki (6/2009)
An outlook of various methods of computer modeling application for the analysis and forecasting of contaminants migration in the soil is being discussed. A new mathematical model of contaminants transport in near-surface soil layer under non-isothermal conditions is being proposed. The given model takes into account the soil moisture content change effecting the solute transport and sorption owing to evaporation processes and recondensation of water vapor. The article also covers the possibility of hybrid expert systems (HES) application for solving contaminants migration in the soil. Distinguish structure of HES that includes models hybridization is being proposed. On the basis of given methods and models a new software has been developed.
© Aristotle University of Thessaloniki (6/2009)
An outlook of various methods of computer modeling application for the analysis and forecasting of contaminants migration in the soil is being discussed. A new mathematical model of contaminants transport in near-surface soil layer under non-isothermal conditions is being proposed. The given model takes into account the soil moisture content change effecting the solute transport and sorption owing to evaporation processes and recondensation of water vapor. The article also covers the possibility of hybrid expert systems (HES) application for solving contaminants migration in the soil. Distinguish structure of HES that includes models hybridization is being proposed. On the basis of given methods and models a new software has been developed.
Soil carbon sequestration affected by cultivation of poor pastures in arid regions of Central Iran
© Aristotle University of Thessaloniki (6/2009)
Soil carbon sequestration through changes in land use and management is one of the important strategies to mitigate the global greenhouse effect. This study was conducted to estimate the rate of soils carbon sequestration in land use changes from poor pastures (PP) to wheat fields (WF) and poor pastures to alfalfa fields (AF) occurring in Abarkooh plain, Central Iran.
© Aristotle University of Thessaloniki (6/2009)
Soil carbon sequestration through changes in land use and management is one of the important strategies to mitigate the global greenhouse effect. This study was conducted to estimate the rate of soils carbon sequestration in land use changes from poor pastures (PP) to wheat fields (WF) and poor pastures to alfalfa fields (AF) occurring in Abarkooh plain, Central Iran.
Lead fractionation in soil as affected by organic and inorganic amendments
© Aristotle University of Thessaloniki (6/2009)
The Pb fractionation in the sewage sludge and cow manure before and after removal of organic carbon, reducible Fe, iron oxide and Pb(NO3)2 salt was determined by a sequential extraction method. Despite cow manure and sewage sludge had high level of organic carbon (54 and 31%, respectively), most of the Pb in these amendments was found in the inorganic (oxide) fraction.
© Aristotle University of Thessaloniki (6/2009)
The Pb fractionation in the sewage sludge and cow manure before and after removal of organic carbon, reducible Fe, iron oxide and Pb(NO3)2 salt was determined by a sequential extraction method. Despite cow manure and sewage sludge had high level of organic carbon (54 and 31%, respectively), most of the Pb in these amendments was found in the inorganic (oxide) fraction.
Analysis of the regional-scale influence of agricultural ecosystem parameters on zinc concentrations of soil and rice grains using regression methods
© Aristotle University of Thessaloniki (6/2009)
We investigated the influence of various metrical and categorical parameters characterizing soil, climate, parent material, physiography and agricultural management on soil and rice grain Zn concentrations in two provinces of Central Iran. Total soil Zn was found to be a function of parent material, physiographic unit, crop rotation system, total soil P concentration and soil clay content. Except for soil CaCO3 and OC the parameters considered in our analysis, however, had no strong effect on grain Zn concentrations. The analysis showed that generally available information such as basic soil properties, parent material and crop rotation system can be very helpful in predicting the Zn status of agricultural soils on a regional scale, while it helped much less in predicting grain Zn concentrations in rice.
© Aristotle University of Thessaloniki (6/2009)
We investigated the influence of various metrical and categorical parameters characterizing soil, climate, parent material, physiography and agricultural management on soil and rice grain Zn concentrations in two provinces of Central Iran. Total soil Zn was found to be a function of parent material, physiographic unit, crop rotation system, total soil P concentration and soil clay content. Except for soil CaCO3 and OC the parameters considered in our analysis, however, had no strong effect on grain Zn concentrations. The analysis showed that generally available information such as basic soil properties, parent material and crop rotation system can be very helpful in predicting the Zn status of agricultural soils on a regional scale, while it helped much less in predicting grain Zn concentrations in rice.
The FOOTPRINT software tools: Pesticide risk assessment and management in the EU at different spatial scales
© Aristotle University of Thessaloniki (6/2009)
In the EU-project FOOTPRINT three pesticide risk assessment and management tools were developed, for use at different spatial scales. The three FOOTPRINT tools share the same underlying science, based on the consistent identification of environmental characteristics driving the fate of agriculturally applied pesticides and their interpretation to parameterise state of the art modelling applications thus providing an integrated solution to pesticide risk assessment and management in the EU.
© Aristotle University of Thessaloniki (6/2009)
In the EU-project FOOTPRINT three pesticide risk assessment and management tools were developed, for use at different spatial scales. The three FOOTPRINT tools share the same underlying science, based on the consistent identification of environmental characteristics driving the fate of agriculturally applied pesticides and their interpretation to parameterise state of the art modelling applications thus providing an integrated solution to pesticide risk assessment and management in the EU.
Impact of nuclear energy objects on lake environment: Lake Druksiai case
© Aristotle University of Thessaloniki (6/2009)
The impact of a nuclear power plant on the environment consists basically of the thermal load,radioactive and chemical waste produced during its operation. Lake Druksiai – the cooling basin of the only Nuclear Power Plant in Lithuania (INPP) has been exposed to severe anthropogenic pressures since 1984 when the first unit (out of two) was put into operation.
© Aristotle University of Thessaloniki (6/2009)
The impact of a nuclear power plant on the environment consists basically of the thermal load,radioactive and chemical waste produced during its operation. Lake Druksiai – the cooling basin of the only Nuclear Power Plant in Lithuania (INPP) has been exposed to severe anthropogenic pressures since 1984 when the first unit (out of two) was put into operation.
