Search results for "compost"

Composti volatili di vinacce, flemme e grappe della cv autoctona siciliana Grillo

2011

Vinificazione in bianco in presenza di chips di quercia di origine e livello di tostatura

2011

Functionalised poly (vinyl alcohol)/graphene oxide as polymer composite electrolyte membranes

2019

[EN] Crosslinked poly(vinyl alcohol) (PVA) based composite films were prepared as polyelectrolyte membranes for low temperature direct ethanol fuel cells (DEFC). The membranes were functionalised by means of the addition of graphene oxide (GO) and sulfonated graphene oxide (SGO) and crosslinked with sulfosuccinic acid (SSA). The chemical structure was corroborated and suitable thermal properties were found. Although the addition of GO and SGO slightly decreased the proton conductivity of the membranes, a significant reduction of the ethanol solution swelling and crossover was encountered, more relevant for those functionalised with SGO. In general, the composite membranes were stable under …

Morir en femenino:la construcción simbólica en las exequias fúnebres de María Josefa Amalia de Sajonia

2021

Este artículo ofrece un análisis de la construcción simbólica de la reina María Josefa Amalia de Sajonia, tercera esposa de Fernando VII, a través de sus exequias fúnebres celebradas en España en 1829. A través de los textos impresos de las Relaciones, Oraciones fúnebres y textos poéticos nos adentramos en el lenguaje hiperbólico que en ellos se ofrecía de la difunta, mientras que las Descripciones de las fiestas y de los cenotafios o túmulos funerarios, así como los grabados que se conservan de estos nos plantean en qué medida el lenguaje artístico contribuyó a fabricar el concepto de la reina doméstica frente a la antigua imagen de la reina cortesana, en la crisis del Antiguo Régimen. En …

Compost Effect on Diuron Retention and Transport in Structured Vineyard Soils

2015

12 pages; International audience; Diuron is frequently detected in surface- and groundwater under the vineyards, where organic amendments are often used, in Burgundy of France. Undisturbed column experiments were conducted to study the influence of three composted organic amendments on diuron leaching through columns of two vineyard soils from Vosne-Romanée (VR, calcareous Cambisol) and Beaujolais (Bj, sandy Leptosol), France. Bromide (used as non-reactive tracer) and diuron breakthrough curves (BTCs) were analyzed using convectivedispersive equation (CDE), two-region (mobile-immobile, MIM) and two-site models. No influence of the composts was observed on the bromide recovery rates. The CDE…

Use of alkylarsonium directing agents for the synthesis and study of zeolites

2019

[EN] Expanding the previously known family of -onium (ammonium, phosphonium, and sulfonium) organic structure-directing agents (OSDAs) for the synthesis of zeolite MFI, a new member, the arsonium cation, is used for the first time. The new group of tetraalkylarsonium cations has allowed the synthesis of the zeolite ZSM-5 with several different chemical compositions, opening a route for the synthesis of zeolites with a new series of OSDA. Moreover, the use of As replacing N in the OSDA allows the introduction of probe atoms that facilitate the study of these molecules by powder X-ray diffraction (PXRD), solid-state nuclear magnetic resonance (MAS NMR), and X-ray absorption spectroscopy (XAS)…

Développement et évaluation d'une méthode fondée sur la PCR temps réel pour la caractérisation des bioaérosols : application au groupe des actinomycè…

2013

Actinomycetes are ubiquitous bacteria and some can be potentially pathogen for Humans in the air of some working areas. It’s notably the case in composting plants where bacteria concentrations can reach high values. Workers exposure to these inhalable bioaerosols can be source of various diseases (hypersensitivity pneumonitis notably). Although this problem is admitted, bibliography reveals a lack of knowledge about risk assessment: currently, none global method for bioaerosols sampling and analysis is standardized. So much that neither dose-effects relationship for most of these bacteria, nor Threshold Limit Value exists. Traditional methods, that are used, have some drawbacks (concentrati…

Indigenous Listeria spp. in biowastes and during composting

2007

International audience

Understanding the microbiological and physicochemical influence of alperujo vermicompost on diuron behaviour and soil quality

2009

Vermicompost as soil organic amendment increase the yield crops because improve the soil structure, the water retention capacity, the microbial biodiversity and thereby its metabolic activity. Vermicompost is also thought to reduce the pesticide pollution. The vermicompost selected was composed of “alperujo” which is largest organic residue in olive oil production. Agricultural soil was 5% amended twice and incubated for 3 months. A 3µg g-1 agricultural dosage of Diuron was applied to amended and unamended soils. The effect of alperujo vermicompost on dehydrogenase activity, the biodiversity and estimated bacterial density, the density of protocathechuate-degrading bacterial community and d…

Eradication of Plasmodiophora brassicae during composting of wastes

2006

Survival of infectious inoculum of the clubroot pathogen Plasmodiophora brassicae was assessed following bench-scale flask composting experiments and large-scale composting procedures. Clubroot-affected material was provided by artificial inoculation of Chinese cabbage or naturally infected Brussels sprout and cabbage roots. Both sets of diseased material were used in flask experiments, and the latter in large-scale windrow and aerated tunnel experiments. Municipal green wastes, onion waste and spent mushroom compost were evaluated in flask experiments with varying temperature, aeration and moisture conditions. Green wastes were used in larger-scale composts. Within the limits of a Chinese …