Regional products are considered an important element of European cultural identity, contributing to the development and sustainability of rural areas. The article presents the research of regional labels from the territory of the Slovak Republic. Our research was aimed at determining the views of producers towards the regional product labeling scheme. The survey took place from January 2020 to April 2020 using an online questionnaire via Google Docs. The results obtained from the questionnaire survey were statistically processed: T-test, Fisher’s exact test, and Pearson correlation coefficient. We used Microsoft Excel and IBM SPSS Statistics 23 software. Based on the research results, we can state that two-thirds of producers (71.8%) are aware of the concept of a regional product. Most producers (82.0%) associate this concept with tradition and a specific region. They consider regional product labeling to be a tool to support the development of tourism (36.0%). A quarter of producers (25.7%) joined this scheme in order to add value to their products and help make consumers perceive them as safer products of higher quality. Based on the research results, we would recommend increasing the promotion of regional products on the part of the label coordinator.
Water retention is an important hydrological ecosystem service of active floodplain soils. The aim of the study was to evaluate the soil chemical, physical, and hydrological properties in Fluvisols in three different ecosystems that have an impact on water retention hydrological ecosystem services (WRHESs). We selected 16 localities along the Štiavnica River in Central Slovakia, 8 located in riparian zones (RZ), 5 in arable lands (AL), and 3 in grasslands (GL). Soil samples were collected from two layers (0–10 and 20–30 cm). In the laboratory, the soil physical (soil texture) and soil chemical properties (pH, soil organic carbon content, humic and fulvic acid ratio) were determined. Using undisturbed soil samples, the soil physical characteristics (particle density, bulk density, porosity, and actual soil moisture–SMa) were measured. With the help of pedotransfer functions, hydrological soil properties (field water capacity–FWC, wilting point–WP, available water capacity–AWC) were estimated. The recorded properties differed between the localities, ecosystems, and two layers. The SMa values showed a higher soil water retention potential of extensively used ecosystems, such as GL and RZ. However, the hydrological properties estimated by pedotransfer functions (FWC, WP, AWC) showed a higher soil water retention potential in AL localities. This indicated that for calculations, selected pedotransfer functions (particle size fractions, organic matter, and bulk density) and other soil or ecosystem properties (e.g., vegetation cover, meteorological conditions) have an impact on WRHESs. One such soil factor can be the quality of organic matter. On the basis of the results of the ANOVA, significant differences emerged between the different ecosystems for selected basic chemical, physical, and hydrological properties. The effect of the soil layer on the soil properties was revealed only in the case of SOC. The results indicated the effect of different ecosystems on soil WRHES and the importance of extensively managed ecosystems, such as RZ and GL. From this point of view, the reduction in the RZ and GL areas during a period of the last 70 years is negative. The findings should be taken into account in future sustainable floodplain management and landscape architecture.
The main objective of this paper is to evaluate an efficiency of 3,5 - dichlorophenol removal from wastewater by using alternative adsorbents. Chlorophenols are organic compounds consisting of a benzene ring, OH groups and also atoms of chlorine. Chlorophenols may have a huge isomere variety that means there are differences in their chemical and physical properties. Due to their toxicity it is necessary to remove them from waste water and in this paper an alternative way of such process is described.
Rapid industrialization and usage of heavy metals in industrial processes have resulted in unprecedented increase in the heavy metal flux into groundwater. Hexavalent chromium is one of elements with high health risks such as mutagenicity and carcinogenicity. Adsorption is economically feasible alternative of chromium removal. We have used spectrophotometric method for monitoring of hexavalent chromium adsorption from aqueous solution with the use of black as adsorbent. We have monitored the influence of temperature and surface treatment on the adsorption process.
AOP processes (Advanced Oxidation processes) are presently used as an alternative to traditional methods for removing of persistent pollutants from wastewater. Article is focused on removal of phenol from wastewater by using UV photodegradation. As a source of UV light medium pressure mercury lamp with output 400W is used. The aim of article is to perform hazard analysis in work with UV photoreactor by HAZOP method, eliminate risks in working with this equipment and propose corrective measures to improve quality of health and safety during work.
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