Search results for "RESTOR"

Methane oxidation in a boreal climate in an experimental landfill cover composed from mechanically–biologically treated waste

2007

The present study evaluated microbial methane (CH4) oxidation in a boreally located outdoor landfill lysimeter (volume 112 m3, height 3.9 m) filled with mechanically-biologically treated waste (MBT residual) and containing a cover layer made from the same MBT residual. The calculations based on gas emission and pore gas measurements showed that, between April and October 2005, a significant proportion (96%) of the methane produced (23 l CH4 m(-2) d(-1)) in the lysimeter was oxidized. Methane was oxidized mainly at the depths of 35-75 cm, as indicated by the upward decrease both in the methane concentration and in the methane-to-carbon dioxide ratio in the pore gas. Lower methane oxidation (…

Biochar based remediation of water and soil contaminated by phenanthrene and pentachlorophenol

2017

Abstract Phenanthrene (Phe) and pentachlorophenol (PCP) are classified as persistent organic pollutants and represent serious concern for the environment as they are toxic and ubiquitous. Biochar based remediation is an emerging technology used in water and soil contamination. In this study we used poplar (BP) and conifer (BC) biochars to remediate water and soil contaminated by Phe and PCP. BP and BC were able to remove completely either Phe or PCP from contaminated water within one to three days. When biochar was confined in a porous membrane, BC and BP maintained their sorption efficiency for several remediation cycles. However, in these conditions BC allowed faster Phe removal. In soil …

Co-digestion of sewage sludge and sterilized solid slaughterhouse waste: Methane production efficiency and process limitations

2012

The rendering product of Category 2 and 3 Animal By-Products is known as sterilized mass (SM) and it is mainly composed of fat and proteins, making it interesting substrate for anaerobic digestion. Batch and semi-continuous laboratory experiments were carried out to investigate the effect of SM addition in co-digestion with sewage sludge on methane production and possible process limitations. Results showed that SM addition in the feed mixture up to 5% (w/w), corresponding to 68.1% of the organic loading, increased methane production 5.7 times, without any indication of process inhibition. Further increase of SM addition at 7.5% (w/w) caused methane production decrease and volatile solids r…

Introduction to environmental security

2007

The term "Environmental Security" refers to a range of concerns that can be organized into three general categories: (1) concerns about the adverse impact of human activities on the environment, seen as an asset to be inherited by the next generations; (2) concerns about the direct and indirect effects of various forms of environmental change (especially scarcity and degradation), which may be natural or human-generated on national and regional security; (3) concerns about the loss of security individuals and groups (from small communities to humankind) experience due to environmental change such as water scarcity, air pollution, global warming, and so on. In order to provide sustainability…

Crítica musical y pensamiento estético en la España de la Restauración: José María Esperanza y Sola (1834-1905)

2015

One of the most outstanding figures of music criticism in the Spanish Restoration was José María Esperanza y Sola (1834-1905), active for thirty years, from the late 1860s until the end of the century. During this period, Esperanza collaborated in different periodical publications and, particularly, “La Ilustración Española y Americana”, from whose pages he informed about the most important musical events celebrated in Madrid, judged according to a conservative aesthetic criterion, opposed to any novelty that infringe the traditional music system. On the basis of Esperanza´s thought, our study analyzes the different subjects that constitute his journalistic production.La crítica musical en …

7.2 Restoration responses of 19 lakes: are TP thresholds common?

2011

L'ex convento e carcere di San Vito di Agrigento. Studi e proposte per la sua conservazione

2020

Il saggio “L’ex convento carcere di San Vito di Agrigento. Studi sulle trasformazioni e proposte per la sua conservazione” indaga l’antico convento dei frati Minori di Agrigento, trasformato nel sec. XIX in carcere di Agrigento. Il convento, costruito fuori le mura della città, era costituito dalla chiesa, dal chiostro e dal convento con le celle e gli spazi comuni dei frati. La nuova destinazione a carcere, con i lavori effettuati tra la metà del sec. XIX, primi e metà del sec. XX, ha in parte distrutto e occultato il convento medievale. Nell’Anno Accademico 2011-2012, i due corsi di Laboratorio di Restauro e Teoria e Storia del Restauro, del Corso di laurea in Architettura, sede di Agrige…

CLEAR: Covariant LEAst-Square Refitting with Applications to Image Restoration

2017

International audience; In this paper, we propose a new framework to remove parts of the systematic errors affecting popular restoration algorithms, with a special focus for image processing tasks. Generalizing ideas that emerged for $\ell_1$ regularization, we develop an approach re-fitting the results of standard methods towards the input data. Total variation regularizations and non-local means are special cases of interest. We identify important covariant information that should be preserved by the re-fitting method, and emphasize the importance of preserving the Jacobian (w.r.t. the observed signal) of the original estimator. Then, we provide an approach that has a ``twicing'' flavor a…

Multispectral image denoising with optimized vector non-local mean filter

2016

Nowadays, many applications rely on images of high quality to ensure good performance in conducting their tasks. However, noise goes against this objective as it is an unavoidable issue in most applications. Therefore, it is essential to develop techniques to attenuate the impact of noise, while maintaining the integrity of relevant information in images. We propose in this work to extend the application of the Non-Local Means filter (NLM) to the vector case and apply it for denoising multispectral images. The objective is to benefit from the additional information brought by multispectral imaging systems. The NLM filter exploits the redundancy of information in an image to remove noise. A …

Assisted phytostabilization of soil from a former military area with mineral amendments.

2019

Abstract Due to the presence of toxic pollutants, soils in former military areas need remedial actions with environmentally friendly methods. Greenhouse experiments were conducted to investigate the aided phytostabilization of multi-heavy metals (HMs), i.e. Cd, Cr, Cu, Ni, Pb, Zn, in post-military soil by Festuca rubra and three mineral amendments (diatomite, dolomite and halloysite). The amendments were applied at 0 and 3.0% to each pot filled with 5 kg of polluted soil. After seven weeks of the phytostabilization, selected soil properties, biomass yield of F. rubra and immobilization of HMs by their accumulation in plant and redistribution among individual fractions in soil were determine…