The article summarizes the authors' experience with environmental impact assessment in the branch of biogas plants. The introductory part of the paper describes the legislative obligations of the Czech Republic concerning the fulfilment of the European Union's limits as for the utilization of renewable energy resources. The next parts of the paper deal with an impact analysis of biogas plants on the environment. The final part of the paper deals with the experience concerning the implementation of the environmental impact assessment process in the field of biogas plants in the Czech Republic.
A number of articles have already been published on energy recovery from the sun using solar panels and their environmental impacts. However, in this article, we assess the impact of solar panel technology, and use separately obtained data based on the disassembly of a specific photovoltaic panel into discrete parts. The aim of this article is to list all the environmental impacts of this panel per unit of energy produced and at the same time to focus primarily on deciphering the energy intensity of individual phases of the life cycle of photovoltaic panel production. An analytical method of Life-cycle assessment using the environmental software version SimaPro 9.0.049 with an integrated Ecoinvent 3 database was used to determine the environmental impacts. Throughout the work, we focus on the data obtained, which shows that the process of photovoltaic panel production itself is very energy-intensive, especially in the phase of photovoltaic cell production and solar glass production. In other phases, which is the production of individual parts of the photovoltaic panel, its use, and subsequent recycling, they do not contribute so much to the overall energy balance. In the environmental impact assessment, the most affected aspects were human health, followed by climatic change, resources, and the ecosystem quality came last. In all four of the above categories, the influence of the photovoltaic cell production phase was determined to be dominant.
The article summarizes possibilities of energy recovery from municipal waste. It describes the history of incineration and energy recovery from municipal waste in Czechoslovakia and then in the Czech Republic. The attention is paid to the three currently operated plants for energy recovery from municipal waste in the Czech Republic (ZEVO Malešice, SAKO Brno and TERMIZO Liberec). The following are the characteristics of the planned plants for energy recovery from municipal waste in the Czech Republic. All these plants operate essentially based on grate boilers with flue gas treatment at the highest technical level. The article also lists other technologies which can be used for energy recovery from municipal waste - these are gasification and pyrolysis units and plasma technology. The conclusion of this contribution is devoted to the current and future situation in the area of energy recovery from municipal waste in the Czech Republic with regard to the applicable legal standards
Abstract:The article focuses on mining of non-energy mineral resources with minimum environmental impacts. It issues from research results of a project Competence Centre for Effective and Ecological Mining of Mineral Resources implemented at
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