56 research outputs found

    Preventing Emotional Dysregulation: Acceptability and Preliminary Effectiveness of a DBT Skills Training Program for Adolescents in the Spanish School System

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    Emotional dysregulation is a key factor in the development and maintenance of multiple disabling mental disorders through a person’s lifespan. Therefore, there is an urgent need to prevent emotional dysregulation as early as possible. The main aim of this study was to evaluate the acceptability and preliminary effectiveness of an adapted Dialectical Behavior Therapy Skills Training program for Emotional Problem Solving in Adolescents (DBT STEPS-A) during secondary school. The sample included 93 adolescents (mean age = 12.78; SD = 0.54; and 53% female) studying in their 2nd year of secondary school in a public center in Catalonia (Spain). Measures of acceptability, difficulties of emotional regulation, mental health problems, and life satisfaction were completed before and after participation in the DBT STEPS-A program during one academic year. The majority of students rated the program as useful (64%) and enjoyed the classes (62%) and 48% of them reported practicing the newly learned skills. Statistically significant improvements were revealed in some emotional regulation-related variables, namely the number of peer problems (p = 0.003; d = 0.52) and prosocial behaviors (p < 0.001; d = −0.82). Although non-significant, the scores in the remaining outcomes indicated a general positive trend in emotional dysregulation, mental health, and life satisfaction. The adapted DBT STEPS-A was very well-accepted and helped overcome some emotional regulation difficulties in Spanish adolescents

    Recovery of organic wastes in the Spanish wine industry : technical, economic and environmental analyses of the composting process

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    The main organic wastes produced in modern wine industries include grape pomace (62%), lees (14%), stalk (12%) and dewatered sludge (12%). Some of these wastes are being used as by-products (grape pomace and lees) whereas the rest of organic wastes (stalk and wastewater sludge) has been traditionally incinerated or disposed in landfill. In this work, composting is proposed for the recovery of stalk and wastewater sludge to produce a sanitized organic amendment for application in the vineyard, closing the organic matter cycle. The environmental and economical analyses of the different alternatives to manage organic wastes from the wine industry are also presented. Composting costs are almost negligible when compared to other management options. From the environmental point of view, in-situ composting presents the best performance in 8 of the 10 impact categories analysed. Finally, the energy balance shows that the 4 composting systems involved less energy than the systems based on Mineral Fertilizer consumption

    Contribution of plastic waste recovery to greenhouse gas (GHG) savings in Spain

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    This paper concentrates on the quantification of greenhouse gas (GHG) emissions of post-consumer plastic waste recovery (material or energy) by considering the influence of the plastic waste quality (high or low), the recycled plastic applications (virgin plastic substitution or non-plastic substitution) and the markets of recovered plastic (regional or global). The aim is to quantify the environmental consequences of different alternatives in order to evaluate opportunities and limitations to select the best and most feasible plastic waste recovery option to decrease the GHG emissions. The methodologies of material flow analysis (MFA) for a time period of thirteen years and consequential life cycle assessment (CLCA) have been integrated. The study focuses on Spain as a representative country for Europe. The results show that to improve resource efficiency and avoid more GHG emissions, the options for plastic waste management are dependent on the quality of the recovered plastic. The results also show that there is an increasing trend of exporting plastic waste for recycling, mainly to China, that reduces the GHG benefits from recycling, suggesting that a new focus should be introduced to take into account the split between local recycling and exporting

    Editors & reviewer's manual for LCADB.sudoe

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    A la portada: FEDER, SUDOE, Secotech sudoe, Sostenipra, UAB i Inèdit, Universidade de Aveiro, École des Mines d'Alès, +Cemagref, SupAgro, INRA, UdG, Catar agroresoucesThis manual is a guideline for uploading a Life Cycle Inventory (LCI) analysis using the Life Cycle Assessment Data Base tool, which can be found in the following site: http://lcadb. sudoe. ecotech. cat/

    Life cycle assessment of energy flow and packaging use in food purchasing

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    The aim of this project is to obtain quantitative data on the metabolic flows (energy consumption, not only by the establishment but also in the transportation of workers and customers, and packaging use) and their resulting environmental impacts of a standard shopping basket purchase in five city center municipal markets and a hypermarket in a suburban retail park in the province of Barcelona (Catalonia, Spain). The main results show that a standard shopping basket purchased in a retail park requires 20 times more energy than one purchased in a municipal market (11.1 kWh and 0.57 kWh, respectively). Customer transportation represents 83.2% of energy consumption in a retail park, while the greatest impacts in a municipal market stem from the establishment itself (49.5%) and worker transportation (40.4%). Secondly, the packaging use inventory is higher in a hypermarket (253 g) than in a municipal market (102 g). However, the overall environmental impact associated with a standard shopping basket is 10 times higher on average in a hypermarket than in a municipal market, and the carbon footprints of the hypermarket and the municipal market are 3.8 and 0.4 kg of CO₂ eq., respectively. According to the sensitivity analysis, current policies for reducing the amount of plastic bag packaging have little repercussion in a retail park because its relative weight in terms of total packaging use is only 7%. Nevertheless, they have notable effects in municipal markets where plastic bags represent 25% of the packaging use. Finally, if customers selected the least packaged products available in hypermarkets, each shopping basket could reduce up to 47.2% of its used packaging weight and between 15.4 and 59.0% of its associated environmental impact

    Eco-innovative practices for sustainable consumption and production: what are the possible benefits for companies ?

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    The paper aims to present some eco-innovative practices regarding Sustainable Consumption and Production (SCP). The study also focuses on potential benefits for the actors who implement these practices, mainly with reference to companies. After a literature review on the actual importance of SCP and on the effects of eco-innovation tools and policies on companies, authors present the developed eco-innovation practices in three focus areas related to sustainable consumption and production. The aim of the study is to contribute to literature studies on SCP with the development of eco-innovative practices resulting by the integration of existing tools, by pointing out and valorizing their potentials and synergies. These practices have been pointing out in the framework of the international European project. Three focus areas are involved by the practices: sustainability of products and services, sustainability of production processes and sustainable management of industrial areas. Authors developed four eco innovative practices resulting from the integration of 15 existing tools. These practices offer many opportunities to many actors, mainly companies and public authorities, in order to achieve environmental and competitive benefits and implement eco-innovation principles with a cooperative and shared approach

    Environmental assessment of different pipelines for drinking water transport and distribution network in small to medium cities: a case from Betanzos, Spain

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    El títol de la versió pre-print de l'article és: Environmental assessment of a drinking water transport and distribution network in small to medium cities and application to a case study networkUntil now, few studies had focused on the environmental impact of the construction phase of a drinking water transport and distribution network (DWTDN). Using the life cycle assessment (LCA) methodology, this article compares the environmental impact of pipes made of different materials as constructive solutions for the DWTDN. Two pipe diameters (90 and 200 mm) commonly used in small to medium-sized cities are analysed. The results show that polyvinyl chloride (PVC), high density polyethylene (HDPE) and low density PE have similar environmental impacts in the case of 90 mm pipe diameter. In the case of 200 mm pipe diameter, ductile iron (DI) and glass fibre reinforced polyester show higher environmental impacts than HDPE and PVC, which in the case of DI are between 3 and 11 times higher than those of HDPE for all the midpoint impact categories. Regarding the different construction phases, installation has a higher percentage of environmental impact for 90 mm pipe diameter (40-68% for HDPE in all the impact categories) than for 200 mm pipe diameter (24-57% for an HDPE) due to the difference in the amount of material required for the manufacture of the pipe. The assessment methodology was applied to calculate the environmental burdens derived from a case study. The impact of the different elements of the case study network has been added to obtain the global impact. The potential reduction of the environmental impacts of the case study has been calculated substituting the whole actual network by less impacting constructive solutions. A potential reduction of between 6 and 16% of the impact has been found for the case study, although the savings might be greater in networks with greater abundance of more impacting pipe materials such as DI. This methodology allows the improvement of the network and the design of more eco-efficient DWTDN

    Environmental assessment of sewer construction in small to medium sized cities using life cycle assessment

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    In a world with an increasing urban population, analysing the construction impacts of sanitation infrastructures through Life Cycle Assessment (LCA) is necessary for defining the best environmental management strategies. In this study, the environmental impacts of one linear meter of sewer constructive solution were analysed for different pipe materials and diameters used in Southern Europe; a unit of different sewer appurtenances (pump, manhole and inspection chamber) was also considered. The impacts of the pipe materials were compared considering different lifespan periods and high-density polyethylene (HDPE) turned out to be the worst option, being polyvinyl chloride (PVC) and concrete the most favourable ones. Few data are available on the material and energy flows in the installation stage; therefore, a comparative analysis of trenches with sand and concrete bedding was conducted. The results show that the installation stage represents up to 80% of the total life-cycle impact of the constructive solutions. Concrete pipes with half-concrete/half-sand bedding are the best option and produce 20-30% of the impact of HDPE pipes with concrete bedding. Hence, designers should focus not only on the pipe but also on the trench model. A methodology was presented to enable the impact aggregation of the different sewer elements, and Betanzos (Spain) was selected to conduct a pilot study in small cities. In the future, studies will need to incorporate the use and maintenance stage, as it is not standard and varies according to the physical features of the cities. Finally, this study provides basic concepts for developing eco-efficiency indicators

    Environmental assessment of drinking water transport and distribution network use phase for small to medium-sized municipalities in Spain

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    Previous studies assessing the environmental impacts of drinking water supply networks have considered a bottom-up approach, analysing single case studies. This paper presents a top-down approach for the assessment of the operational phase of a water supply network. A representative sample of 50 cities was statistically analysed to find relations between different variables regarding electricity and water consumption linked with the environmental impacts of the network. The results show that some of the variables are clearly related to the relative energy consumption of the network. Such is the case for population size, where small municipalities have up to 14 times higher relative electricity consumption compared with medium-sized municipalities (1.15E-2 as opposed to 8.3E-4 kWh/m³ registered water km of network) due to case-specific factors such as a strong gradient between a water tank and the consumption point. Similarly, the cases showing low population density exhibit 7 times higher relative electricity consumption because of the longer distances that must be covered and the correlation between population density and size. The values found for greenhouse gas (GHG) emissions derived from the energy consumption are consistent with results from previous studies: on average, 5.53 kg of CO₂ eq. emissions/inhabitant·year are released, but the variability is very high, ranging from 0.005 to 67.8 kg of CO₂ eq. emissions/inhabitant·year. No clearly significant correlations were found between the relative water demand and variables such as seasonality or income per capita, which might indicate that water consumption depends on individual decisions of the population rather than on the variables assessed. Models for the estimation of water demand, length of network and electricity consumption were defined. However, the modelling of electricity consumption presented more difficulties because of its high variability. A protocol for data collection should be defined and implemented in the future to enable the analysis of more high quality case studies and for the definition of more accurate and reliable models

    Assessing the energetic and environmental impacts of the operation and maintenance of spanish sewer networks from a life-cycle perspective

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    The final publication is available at Springer via http://dx.doi.org/10.1007/s11269-015-0958-2The environmental impacts resulting from sewer networks are best analysed from a life-cycle perspective to integrate the energy requirements into the infrastructure design. The energy requirements for pumping wastewater depend on the configuration of the city (e.g., climate, population, length of the sewer, topography, etc.). This study analyses and models the effect of such site-specific features on energy consumption and related effects in a sample of Spanish cities. The results show that the average annual energy used by sewers (6.4 kWh/capita and 0.014 kWh/m3 of water flow) must not be underestimated because they may require up to 50 % of the electricity needs of a typical treatment plant in terms of consumption per capita. In terms of Global Warming Potential, pumping results in an average of 2.3 kg CO2eq./capita. A significant positive relationship was demonstrated between the kWh consumed and the length of the sewer and between other factors such as the population and wastewater production. In addition, Atlantic cities can consume 5 times as much energy as Mediterranean or Subtropical regions. A similar trend was shown in coastal cities. Finally, a simple predictive model of the electricity consumption was presented that considers the analysed parameters.Peer ReviewedPostprint (author's final draft
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