scholarly journals Environmental Impact Assessment and Hydraulic Modelling of Different Flood Protection Measures

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 786
Author(s):  
Andrej Šoltész ◽  
Martina Zeleňáková ◽  
Lea Čubanová ◽  
Mária Šugareková ◽  
Hany Abd-Elhamid

The most appropriate method to protect settlements and economically important sites from flood hazard, is the implementation of flood protection measures in stream catchments and protected localities, which contribute to reduce the peak flow and distribution of the flood wave over a longer period of time. If such measures are not realistic or ineffective, it is necessary to focus on flood protection directly on the area of the protected side or its vicinity. Where the lag time between the flood threat detection and actual flood onset is short, one possible measure is to increase the capacity of the watercourse, very often in combination with other flood mitigation measures in the protected area. The engineering approach to flood protection is the subject of many scientific research studies. Permission for flood protection structures depends on their environmental impact assessment (EIA), according to Law no. 24/2002 Coll. on Environmental Impact Assessment in the Slovak Republic, annex no. 8 (list of activities subject to EIA). Based on the EIA, it is possible to select the best alternative of flood protection, i.e., the alternative with the lowest risk impact on the environment. This paper aims to analyse the flood protection measures along the Lukavica stream (central Slovakia), applying hydraulic models. The best alternative with the lowest impact on the environment, assessed using the risk analysis method, consists of detention reservoir construction. An effective combination of environmental impact assessment and hydraulic modelling contribute to the selection of an effective flood protection measure in the territory.

Author(s):  
Xabier Guinda ◽  
Araceli Puente ◽  
José A. Juanes ◽  
Francisco Royano ◽  
Felipe Fernández ◽  
...  

The high energy demand and the threat of climate change have led to a remarkable development of renewable energies, initially through technologies applied to the terrestrial environment and, recently, through the awakening of marine renewable energies. However, the development of these types of projects is often hampered by failure to pass the corresponding environmental impact assessment process. The complexity of working in the marine environment and the uncertainties associated with assessing the impacts of such projects make it difficult to carry out objective and precise environmental impact assessments. AMBEMAR-DSS seeks to establish a basis for understanding and agreement between the different stakeholders (project developers, public administrations, environmental organizations and the public in general), in order to find solutions that allow the development of marine renewable energies, minimizing their environmental cost. For this purpose, a DSS is proposed which, based on cartographic information and using objective and quantifiable criteria, allows comparative assessments and analyses between different project alternatives. The analytical procedures used by the system include, among others, hydrodynamic modeling tools and visual impact simulators. In addition, impacts on marine species are assessed taking into account intrinsic ecological and biological aspects. The magnitude of the impacts is quantified by means of fuzzy logic operations and the integration of all the elements is carried out by an interactive multi-criteria analysis. The results are shown in tables, graphs and figures of easy interpretation and can be also visualized geographically by means of a cartographic viewer. The system identifies the main impacts generated in the different phases of the project and allows establishing adequate mitigation measures in search of optimized solutions. The establishment of the assessment criteria has been based on the abundant, but dispersed, scientific literature on the various elements of the system and having the opinion of experts in the various fields. Nevertheless, the DSS developed constitutes a preliminary basis on which to build and improve a system with the input of researchers, promoters and experts from different disciplines.


2015 ◽  
Vol 78 (1) ◽  
Author(s):  
Maisarah Makmor ◽  
Zulhabri Ismail

Environmental Impact Assessment (EIA) is a planning tool to identify, predict and evaluate potential environmental impacts and mitigation measures in the early stages of proposed projects. Although EIA has been implemented in Malaysia for over 25 years, the EIA practices have yet to achieve the parameters of effective environmental management and sustainable development. Hence, this research aims to improve the EIA process in Malaysia. Three objectives were utilised in this research which are to recognise the fundamentals of EIA process and procedures applied in Malaysia, to analyse the issues in relation to the EIA preparation and submission conducted in Malaysia and to propose a set of recommendations to further improve the current EIA process in Malaysia. Mixed methods approach was embarked composed of qualitative instruments via document review and semi-structured interviews and quantitative instrument utilising questionnaire survey. Key issues on the EIA process in Malaysia were gathered from qualitative data collected. Analysis of data collected resulted to recommendations on the key issues regarding EIA. 25 proposed recommendations to improve the EIA process were contextualised and validated via questionnaire survey. Ergo, this research established an improved EIA process in Malaysia towards sustainable development to ameliorate the EIA practices in Malaysia. 


Author(s):  
Peter Salzer ◽  
Eva Sencˇa´kova´

Environmental Impact Assessment Act has been in force in the Slovak Republic since 1994. Evaluation of potential environmental impact of nuclear facilities/activities was enforced in the cases of newly sited constructions containing nuclear facilities much earlier: the civil construction legislation required the preparation of initial safety report with the same purposes. The cardinal change constituted by the EIA Act was the legal requirement of the public involvement in the assessment process, such as participation of municipalities, civil initiatives or public hearings. Another aspect was the most complex evaluation of impact, i.e. not only inside the nuclear safety framework but including, for instance, also non-nuclear, social, and economical aspects. All nuclear activities judged by the environmental impact assessment processes in the last eight years have been related to radioactive waste and spent fuel management facilities or activities and to the decommissioning of nuclear power plants. The particular cases are briefly described and the positive and negative implications from particular environmental impact assessment processes are discussed and generalized. Special attention is given to the use of EIA approaches in the strategy decision-making processes on various levels. There are the main difficulties and drawbacks in application of the EIA legal provisions in Slovakia at the present time.


Author(s):  
Igor Matejovicˇ ◽  
Vincent Pola´k

Through the adoption of Governmental Resolution No. 801/99 the Slovak Republic undertook a commitment to shutdown units 1 and 2 of Jaslovske´ Bohunice V1 NPP (WWER 230 reactor type) in 2006 and 2008 respectively. Therefore the more intensive preparation of a decommissioning documentation has been commenced. Namely, the V1 NPP Conceptual Decommissioning Plan and subsequently the Environmental Impact Assessment Report of V1 NPP Decommissioning were developed. Thus, the standard environmental impact assessment process was performed and the most suitable alternative of V1 NPP decommissioning was selected as a basis for development of further decommissioning documents. The status and main results of the environmental impact assessment process and EIA report are discussed in more detail in this paper.


Proceedings ◽  
2018 ◽  
Vol 2 (20) ◽  
pp. 1306
Author(s):  
António Carvalho ◽  
Victor Cavaleiro ◽  
António Albuquerque ◽  
Flora Silva

Rendering at the European Directive 2002/49/EC, all EU members have to draw up a strategic noise map for all agglomerations with more than 250,000 inhabitants and for all major airports, roads and railways. A study of environmental impact assessment on motorway A23 in the stretch between Castelo Branco–Alcains (Portugal), based in the impact of the environmental noise, allowed the modeling the noise variation, which can be useful for establishing mitigation measures. The results show that noise model can be a useful tool for the monitoring noise impact in surrounding of motorways.


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