National Repository of Grey Literature 161 records found  1 - 10nextend  jump to record: Search took 0.02 seconds. 
The study of occurrence, collection and disposal of hazardous waste
Wolf, Adam ; Benešová, Libuše (advisor) ; Zimová, Magdalena (referee)
This bachelor thesis provides an overview about the hazardous waste. At the beginning there will be discussed the legislative measures related to hazardous waste management and international cooperation. Following three chapters are dedicated to these hazardous wastes: asbestos waste, sludge from wastewater treatment and ashes from incineration waste. Today forbidden material asbestos occurs in insulation of the old public and industrial buildings. It is essential to prevent release of asbestos fibres. Further currently was proposed several promising processes for treatment of sewage sludge and ashes from incineration waste that management in the Czech Republic overlooks. Presented methods emphasize degradation of hazardous properties from the concerned waste. Thesis shows current occurrence of waste in environment. Main objective is assessment of potential risks for human health or environmental components, consequent from hazardous waste and draw implications for the most effective treatment. A conclusion of literature research summarized advice for treatment of these waste. Key words: hazardous waste, hazardous properties, asbestos containing waste, sludge from wastewater treatment, sewage sludge, waste incineration, bottom and fly ash, vitrification, heavy metals.
Oil accidents anf theis effect on water quality.
Lebdušková, Helena ; Benešová, Libuše (advisor) ; Tonika, Jaroslav (referee)
The basic aim of the thesis is descritpion of oil accidents, which are these days the normal part of our lives. I deal with the issue of oil extraction as a base material for petrol, oil and other oil-based products. The current methods of production make these accidents impossible to avoid. The biggest problems come from using large tankers to transport the oil, other problems bring oil processing and waste production. This thesis focuses on the assessment of oil accidents and their effects on water quality, as well as on the whole ecosystem. Keywords Oil, oil accident, water pollution
Crushes and theirs effect on water quality
Uhrová, Adéla ; Benešová, Libuše (advisor) ; Tonika, Jaroslav (referee)
This thesis is focused on accidents in water and their their division into groups according to different factors. Work detailing the chemical accidents resulting in pollution of surface and groundwater, which became the Czech Republic since 2000. Describes chemicals that often escape into the water and damage to their quality. Furthermore, there is described an accident in 2006, when form "Lučební závody Draslovka, Kolín" leaked into the Elbe dangerous cyanide. Key words: Accidents, water pollution
The effect of WWTP om the water quality in the stream
Kunert, Michal ; Benešová, Libuše (advisor) ; Komínková, Dana (referee)
The aim of this work is to monitor the quality of Čermenka creek by determining the basic physical and chemical parameters and concentration of ions present in water samples and subsequent impact on the quality of the water after the construction of new waste water treatment plant. Keywords : water quality, water pollution, wastewater treatment plant
Ecohydrological survey of streams in urban and suburban landscape. Case study of the Vinor Brook.
Koubková, Lenka ; Matoušková, Milada (advisor) ; Benešová, Libuše (referee)
Ecohydrological survey of streams in urban and suburban landscape. Case study of the Vinoř Brook. Abstract This thesis deals with a ecohydrological survey of the Vinoř Brook which was seriously environmentally burdened in the 90s of the 20th century. The ecological status is determined by the assessment of runoff regime, surface water quality, sediment contamination and ecomorphological survey. Data was compiled by the field survey and measurements. Discharges were measured by the hydrometric propeller. The water quality was determined based on the analysis of physico-chemical parameters. The most problematic are compounds of nitrogen. The highest concentration of nitrate and ammonia nitrogen was measured on the upper stream of the Vinoř Brook in the profile No. 1. This profile is influenced by the outlet of the sewage wastewater treatment plant in Kbely. In order to find the old anthropogenic pollution of bottom sediments with heavy metals and arsenic in the vicinity of Biologický pond, sediments from this location were sampled and content of each element was determined by ICP OES method. Subsequently a comparative analysis was made with previous surveys. The observed concentrations of heavy metals and arsenic in sediments in the...
desalination of see water
Pokorný, Lukáš ; Benešová, Libuše (advisor) ; Pivokonský, Martin (referee)
Along with the Earth's population growth the requirements for water supply increase. Resources of fresh water are already unable to supply citizens, industry and agriculture of some countries. This concerns in particular xeric, long-shore areas as Australia. These areas dispose of huge amount of water. Unfortunately it is saline water. Saline water contains lots of solute matter concentrated in 37000 mg per liter, which makes it unsuitable for any use. With an assistance of membrane processes it is possible to rid the water of this solute matter and hereafter use it as fresh water for industry or agriculture. The most expoited method of saline water purification is reverse osmosis, which offers the best performance in proportion to the consumtion of electric energy.
Utilization and comparing the new filter materials for removing iron and manganese
Lukeš, Jan ; Benešová, Libuše (advisor) ; Pivokonský, Martin (referee)
This bachelor thesis deals with the removal of iron and manganese in water treatment. The main goal is to determine applicability and suitability of commercially available filter materials for the process for removing iron and manganese from water. The issue of iron and manganese removal water treatment was investigated on the basis of a literature review that summarizes the possible methods of removing iron and manganese from water. Subsequently, four industrially produced filter materials were selected and tested in laboratory. Condition for selection was that the materials did not require regeneration. This work has shown that the use of industrially produced filter materials is advantageous in appropriately defined operating conditions. Removing iron and manganese with these materials may be a suitable alternative to the methods used today. Their advantage lies in the long life cycle without requiring dosage of oxidizing agent. The other advantage is the possibility to remove the seasonally occurring increased concentration of iron and manganese. Their use is likely to be suitable for automatic operation of the drinking water treatment plant.
Sink disposers and theirs importance in biological degradable waste removal.
Amemori, Anna ; Benešová, Libuše (advisor) ; Doležalová, Markéta (referee)
Some 30 - 50 % of municipal solid waste (MSW) is biodegradable waste. Most of this waste is sent to landfills or incinerated and is not recovered. According to Waste Management Plan of Czech Republic based on the Landfill Directive of EU, Czech Republic should to reduce weight of biodegradable waste sent to lanndfills to 75 % in 2010 and 35 % in 2020 compared with the amount that had been landfilled in 1995. In rural areas biodegradable waste is fed to animals or treated by home composting. However in urban areas the collection of separated biowaste is problem for a long time. Food waste disposers (FWDs) presents interesting alternative for the biowaste disposal. They enable the separation of food waste at source by shreding it in a kitchen sink. FWDs utilize existing infrastructure of sewer system to transport shreded wastes to wastewater treatment plants (WWTP). Wastes can be disposed in WWTPs by anaerobic digestion - the best method for disposal of food waste of animal origin. This work concentrates on literature research of studies about feasibility of FWD as a instrument for biodegradable waste removal and compares arguments for and against using of FWDs in households. Majority of studies shows no complications in sewer system and on WWTP after instalation of FWDs. Energetic and hydraulic consumption...
Assessment of suitability MSW landfilling in the Czech Republic
Kosová, Kristýna ; Benešová, Libuše (advisor) ; Kotoulová, Zdenka (referee)
The paper examines the suitability of municipal waste landfill in the Czech Republic. Landfill is still the most common method of waste disposal. This is mainly due to the number of landfills in the country, the level of charges, poorly built infrastructure capacity and other technical facilities for waste management. The work deals with the actual construction of landfill, through the production, collection and sorting MSW to the political and economic waste management. It also focusing on current issues of legislation and waste management. Part of this work is survey of public opinion and proffesional's views on this issue, which is divided to supporters and opponents. Although the landfill haves still a decreasing trend, the fact remains that there will be always stay some residual waste that can not to be completly remove. So the landfill will always remain as integral part of waste management.
Mapping of water quality in Prague creeks with GIS
Thompsonová, Tereza ; Matějíček, Luboš (advisor) ; Benešová, Libuše (referee)
This thesis is focused in using of Geographic Information Systems (GIS) for mapping water quality in Prague creeks. The theoretical section focuses in a description of GIS and selected GIS projects (SWAT, ZABAGED) including a description of using GIS abroad. Working processes of chemical analyzes required to determine water quality and pollution sources in the area of urbanized basin are explained in the task. The practical section is focused in processing of data, especially mapping of selected creeks and sampling profiles using GIS. Obtained data is processed in tables and charts and used in correlation analysis. A purpose of the project was to demonstrate a possibility of GIS for modelling basin and its parameters.

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