Ungureanu Elena

Aspects of the Contribution of the Leader Approach to Rural Development in Romania. Case Study: North-East Development Region

Carmen-Olguța Brezuleanu, Mădălina-Maria Brezuleanu, Roxana Mihalache, Irina Susanu, Diana Elena Creangă, Elena Ungureanu

ABSTRACT. Rural development is the second pillar of the Common Agricultural Policy of the European Union (EU), with the role of helping the rural areas of the EU and implicitly Romania to address the economic, environmental, and social challenges they face. The purpose of the research included in this paper is to demonstrate the contribution of the LEADER approach to rural development in Romania, with an emphasis on the North-East Development Region. At the same time, the aim was to highlight the innovative nature of this approach: what it means, how it can be applied, and how it was applied. The data studied through the analysis carried out show that the Romanian territory and, implicitly, the North-East Development Region is poor, fragmented, depopulated, or in the process of depopulating, with few opportunities for young people. The innovative character of the LEADER Programme in Romania and implicitly the North-East Development Region results from the degree of novelty that an investment financed through it brings to the targeted territory, without being limiting and without necessarily presupposing a technological innovation, because the innovation must be evaluated relative to the local situation. The main instrument through which the principles of the LEADER approach can be implemented is the Local Action Group. It is the main driving force behind the activities to be carried out in the territory and which will lead to their implementation. The Local Action Groups set up in the North-East Region provide a common communication framework for local communities to develop and implement Local Development Strategies by initiating, developing and financing projects at local level. They contribute to the unity of local communities and their participation in local development. LEADER approach has brought and how its innovative character is highlighted. The questions that informed its development were: Is this concept considered as a model for sustainable rural development in Romania and the N-E Region? Is LEADER a truly innovative approach. In order to achieve the proposed goal, a multi-step working procedure was developed to allow the collection of target data and additional data derived from the initial target data. Thus, the working procedure was structured in the following steps: problem identification and conceptualization, literature review, document structuring, strategy selection, operational planning, data calculation, and interpretation. Both qualitative and quantitative methods were used in this work. Thus, from a quantitative point of view, the following research methods were considered relevant for obtaining data: administrative data analysis. As a qualitative method, a bibliometric analysis was carried out, i.e., the literature on sustainable rural development through the use of support measures was analysed by means of the VOSviewer programme, using the Web of Science collections database. Without the implementation of the LEADER Programme in Romania and implicitly in the North-East Development Region, rural areas may be deprived of funding that determines the improvement of conditions in that area, but efforts in the field of implementing sustainable rural development measures must be continued so that the effect of this funding is really visible. Thus, the results of the research carried out in the North-East Development Region of Romania add additional value to the information published in previous studies through proposals for rural reform and concrete examples of innovative projects implemented there.

Keywords: LEADER; local action group; North-East Development Region; Romania; rural development.

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Cornhusk Powders as Adsorbents for Nitrites in Solution: A Thermodynamic and Kinetic Approach

Alina Elena Trofin, Elena Ungureanu, Iuliana Motrescu, Lucia Carmen Trincă, Denis Constantin Țopa, Diana Beatrice Eperjessy

ABSTRACT. The retention of nitrite ions in solutions of different concentrations by three cornhusks-based powders was analyzed. Natural cornhusk powder (NCHP), as waste obtained from local market, the alkalized cornhusk powder (ACHP) and the biochar from the original material (CHBC) have been characterized through scanning electron microscopy (SEM) and elemental composition EDAX – TEAM analysis (Energy dispersive analysis X-ray – Texture and ele-mental analytical microscopy) and tested for the removal of nitrite ions. The influence of initial nitrite concentration and contact time was studied under slow stirring rate conditions (150 rpm). For all three adsorbents both Freundlich and Langmuir isotherm equations described the process with R2 > 0.95, denoting physical adsorption and chemisorption on the surface. The estimated retained quantities (mg·g-1) determined from isotherms were 4.4783 (NCHP), 8.3542 (ACHP) and 8.7413 (CHBC). The Ho&McKay model was better adjusted to the adsorption data with R2 > 0.985, while the Lagergren model produced regression factors between 0.61 and 0.88. Considering the biggest concentration of nitrite solution of 50 mg·L-1 and the longest contact time of 150 minutes, the equilibrium capacity qe (mg·g-1) predicted by the Ho&McKay model for the considered adsorbents were: 4.5065 (NCHP), 8.5179 (ACHP) and 8.9445 (CHBC) compared to the obtained qt (mg·g-1) of 4.4384 (NCHP), 8.0685 (ACHP) and 8.5753 (CHBC). The nitrite uptake in the experiments reached a maximum of 2.2192 mg·g-1 on NCHP, 4.0342 mg·g-1 on ACHP and 4.2877 mg·g-1 on CHBC. Considering the cost-effective treatment steps, there is the possibility of valorising an important amount of waste as adsorbent materials.

Keywords: cornhusks powder; nitrite removal; waste valorisation.

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Potential Valorisation of Protobind 1000 as Adsorbent for Pb2+ and Zn2+

Alina Elena Trofin, Elena Ungureanu, Lucia Carmen Trincă, Maria Emiliana Fortună, Diana Beatrice Eperjessy

ABSTRACT. The adsorption of metal ions from increasing concentrations in aqueous solutions by modified straw lignin Protobind 1000 was studied. The effect of metallic ion concentrations (from 20.72 to 207.2 mg·L-1 for Pb2+ and from 6.538 to 65.38 mg·L-1 for Zn2+) and contact time (30, 60 and 90 minutes) were studied at pH = 6 and 200C. Langmuir and Freundlich isotherm equations were applied to assess equilibrium data and the kinetics of the adsorption processes were analysed using Lagergren pseudo first order and Ho&McKay pseudo second order models. The results show that the adsorption processes reached equilibrium after 90 minutes, but similar values were registered after 60 minutes. The Freundlich isotherm described the process better, denoting chemisorption with the formation of ion-lignin complex structures. The Ho&McKay model fit the adsorption data better with regression coefficients equal to 1 compared to the Lagergren model, where the regression factors varied between 0.72 and 0.95. For the maximum concentration of lead solution and the longest adsorption time of 90 minutes, the Ho&McKay model predicted an equilibrium capacity qe of 13.1406 mg·g-1 compared to the 13.1398 mg·g-1 obtained. For zinc adsorption, the same maximum concentration and time were considered, and the pseudo-second order model predicted a qe of 12.6743 mg·g-1 compared to the obtained value of 12.6714 mg·g-1.
The uptake of lead was greater on 0.15 g of adsorbent (a maximum of 27.23 mg·g-1) than the zinc uptake (a maximum of 8.28 mg·g-1), for all analysed concentrations.

Keywords: adsorption, Protobind 1000 (PB 1000), lead, zinc.

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