Search results for "sanit"
showing 10 items of 944 documents
Study of aerobic granular sludge stability in a continuous-flow membrane bioreactor.
2015
A granular continuous-flow membrane bioreactor with a novel hydrodynamic configuration was developed to evaluate the stability of aerobic granular sludge (AGS). Under continuous-flow operation (Period I), AGS rapidly lost their structural integrity resulting in loose and fluffy microbial aggregates in which filamentous bacteria were dominant. The intermittent feeding (Period II) allowed obtaining the succession of feast and famine conditions that favored the increase in AGS stability. Although no further breakage occurred, the formation of new granules was very limited, owing to the absence of the hydraulic selection pressure. These results noted the necessity to ensure, on the one hand the…
REMOTE SENSING ANALYSIS COUPLED TO FIELD MEASUREMENTS FOR THE EVALUATION OF METHANE EMISSIONS FROM A LANDFILL SITE: A CASE STUDY
2015
SUMMARY: the waste disposal in sanitary landfills generates landfill gas (LFG), mainly constituted by methane (CH4) and carbon dioxide (CO2), because of the anaerobic degradation of the organic matter contained in the disposed waste. It is worth mentioning that CH4 is recognized as one of the most important contributor to global warming and sanitary landfills for Municipal Solid Waste (MSW) have been found to be a significant source of CH4 generation and emission. The main aim of the present work was the evaluation of methane emissions from a Sicilian landfill site by coupling of direct field measurements and ground temperature data acquired through remote sensing techniques. It is worth me…
Implementing the 5-S quality system at a State Vocational Training School
2013
El Método de las 5S Trata de lograr v Lugares de Trabajo mejor Organizados, Más ordenados y Más limpios de forma permanente CONSEGUIR Para Una alcaldesa productivity y entorno laboral Seguro. Este Trabajo describen las Fases de la Implantación del Método en el laboratorio de Hematología, En un centro educativo de Formación Profesional de la provincia de Valencia. Los Resultados obtenidos a posteriori de la Implantación del Método 5S, demuestran Una gran difference en Cuanto al orden, La ubicación de los Materiales y el mejor clima en el aula, en comparacion con los Resultados de la prueba piloto los antes de su Implantación. The 5S method try to make workplaces better organized, more orderl…
Bordón : revista de pedagogía
2014
Resumen tomado de la publicación La educación para la salud es una herramienta para conseguir un estado completo de salud para todos. La incorporación de la educación para la salud en el currículo escolar asegura que este completo estado de bienestar llegue a todos debido a la escolaridad obligatoria. A nivel europeo, las administraciones educativas y sanitarias abrieron un amplio cauce de actuación para el desarrollo de su inclusión en la escuela. Conseguir una cultura de la salud para todos es importantísimo y en esto la escuela cumple una labor fundamental. El aspecto más relevante de la investigación es el estudio comparado sobre las políticas educativas de educación para la salud en la…
From mental hygiene to mental health: ideology, discourses and practices in Franco’s Spain (1939–75)
2017
Based on an analysis of the discourses, the ideological appropriation and the practical influence of mental hygiene in Spanish psychiatry during the early years of the Francoist regime, this article examines its decline and subsequent replacement by the new concept of mental health promoted by the World Health Organization and other international bodies from the mid-twentieth century. The old approach, essentially focused on the prophylaxis of insanity within the framework of a set of interventionist policies of social defence, was thus transformed from the beginning of the 1960s into a much more ambitious and comprehensive project which sought to promote the psychosocial balance and perfo…
Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide−…
2020
Granular ferric hydroxide (GFH) is often used for fixed bed adsorbent (FBA) columns in groundwater purification units around the world to remove arsenate contaminations. Groundwater can contain also other toxic (e.g., antimonite and vanadate) and non-toxic oxo-anions (phosphate and silicic acid) that are known to affect FBA lifetimes. Therefore, understanding the breakthrough of toxic compounds intended for removal by FBA is essential to their design, and is important to predict accurately breakthrough curves (BTCs) for FBAs in waterworks to plan future operating costs. Rapid small-scale column tests (RSCCT) and pilot-scale FBA were used to simulate vanadate BTCs for complex groundwater che…
N-(2-PIRYDYLAMINO) METHYLENEBISPHOSPHONIC ACID AS A SOLE SOURCE OF A FUNGI FUSARIUM STRAINS GROWING
2016
The active substance of new herbicide generation is N-(2-pirydyloamino) methylenobisphosphonic acid. Two strains Fusarium culmorum CB3 and Fusarium oxysporum XVI, isolated from soil treated with examined substance, were chosen to investigation of using it as a sole source of phosphorus, nitrogen or carbon in the concentrations at 1.0 mM. Interactions between the dominating strains of fungi and N-(2-pirydyloamino) methylenobisphosphonic acid, mycelium growth rate, the spore germinate index, the level chemical changes of N-(2-pirydyloamino) methylenobisphosphonic acid and pH were investigated after cultivation in mineral medium and its modifications. The results of growth kinetics of the stud…
A new plant wide modelling approach for the reduction of greenhouse Gas emission from wastewater treatment plants
2017
Recent studies about greenhouse gas (GHG) emissions show that sewer collection systems and wastewater treatment plants (WWTPs) are anthropogenic GHG potential sources. Therefore, they contribute to the climate change and air pollution. This increasing interest towards climate change has led to the development of new tools for WWTP design and management. This paper presents the first results of a research project aiming at setting-up an innovative mathematical model platform for the design and management of WWTPs. More specifically, the study presents the project’s strategy aimed at setting-up a plant-wide mathematical model which can be used as a tool for reducing/controlling GHG from WWTP.…
Carbon and nutrient biological removal in a University of Cape Town membrane bioreactor: Analysis of a pilot plant operated under two different C/N r…
2016
Abstract The effect of the carbon-to-nitrogen (C/N) ratio variation in a University of Cape Town Membrane bioreactor (UCT-MBR) was investigated. The experimental campaign was divided into two phases, each characterized by a different C/N ratio (namely, 10 and 5, Phase I and Phase II, respectively). The UCT-MBR pilot plant was analysed in terms of carbon and nutrients removal, biomass respiratory activity, activated sludge features and membrane fouling. The results highlighted that the nutrients removal was significantly affected by the decrease of the C/N ratio during the Phase II. The biological carbon removal was also affected by the low C/N value during the Phase II. Indeed, the average …
An innovative respirometric method to assess the autotrophic active fraction: Application to an alternate oxic-anoxic MBR pilot plant
2016
An innovative respirometric method was applied to evaluate the autotrophic active fraction in an alternate anoxic/oxic membrane bioreactor (MBR) pilot plant. The alternate cycle (AC) produces a complex microbiological environment that allows the development of both autotrophic and heterotrophic species in one reactor. The present study aimed to evaluate autotrophic and heterotrophic active fractions and highlight the effect of different aeration/non aeration ratios in a AC-MBR pilot plant using respirometry. The results outlined that the autotrophic active fraction values were consistent with the nitrification efficiency and FISH analyses, which suggests its usefulness for estimating the ni…