The essence of the application of the life cycle assessment study is to avoid increasing the quality of individual products and services at the expense of environmental degradation. Life cycle assessment is regarded as a universal method that is useful for any organization, regardless of the nature and scope of business. The effectiveness of wastewater treatment can determine and assesses potential risks associated with operation of wastewater treatment plant to the environment using appropriate methodology. The implementation of the method requires formulizing processes, using exact methods, allowing identifying the environmental impacts on the environment. Life cycle assessment belongs in industrialized and environmentally conscious states among ordinary tool of environmental management.The scientific part is the introduction of general standards for specific wastewater treatment plant. The emphasis is given on correct understanding of the problem, regarding the definition of objectives, functional unit, system boundaries, and evaluation indicators. Based on the monitoring and measurement of pollutants in samples of wastewater, the data is processed by the competent life cycle assessment software.

The aim of this study is to focus on environmental benefits, or eventual loads of sludge life cycle in the wastewater treatment process. Life Cycle Assessment was used to evaluate the environmental impacts associated with the treatment of wastewater in a wastewater treatment plant (WWTP) in Vráble, based on the general standard EN ISO 14040. From the measured experimental data, the environmental impacts of the sludge management are quantified using the LCA method. For impact assessment is using the OpenLCA program, together with the available databases and assessment methods. The LCA results of Vráble WWTP taking renewable energy as the energy source proposed that enhancing the effluent quality will decrease the environmental impacts.

V súčasnosti je v rámci kalového hospodárstva potrebné orientovať sa v smere ďalšieho znižovania kontaminácie kalov, a to aj z pohľadu organickej kontaminácie v zmysle právnej úpravy pripravovanej EÚ. Technológie kalového hospodárstva je potrebné nielen zdokonaľovať, ale súčasne aj optimalizovať a racionalizovať. Tieto požiadavky sa na poli výskumu a vývoja premietajú do zvýšen.ho záujmu o nové poznatky z oblasti kalového hospodárstva.

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