Utilisation pratique des excitations nucléaires à longue durée de vie : Le Graser

École thématiqu

Characterization of gaseous odorous emissions from a rendering plant by GC/MS and treatment by biofiltration.

International audienceThis research focuses on the identification and quantification of odorous components in rendering plant emissions by GC/MS and other analytical methods, as well as the description of phenomena occurring in biofilter in order to improve the removal efficiency of industrial biofilters. Among the 36 compounds quantified in the process air stream, methanethiol, isopentanal and hydrogen sulfide, presented the major odorous contributions according to their high concentrations, generally higher than 10 mg m(-3), and their low odorous detection thresholds. The elimination of such component mixtures by biofiltration (Peat packing material, EBRT: 113 s) was investigated and revealed that more than 83% of hydrogen sulfide and isopentanal were removed by biofilter. Nevertheless, the incomplete degradation of such easily degradable pollutants suggested inappropriate conditions as lack of nutrients and acidic pH. These inadequate conditions could explain the lack of performance, especially observed on methanethiol (53% of RE) and the production of oxygenated and sulfur by-products by the biofilter itself

Impact of nutrients supply and pH changes on the elimination of hydrogen sulfide, dimethyl disulfide and ethanethiol by biofiltration.

International audienc

The costs in provision of haemodialysis in a developing country: A multi-centered study

<p>Abstract</p> <p>Background</p> <p>Chronic Kidney Disease is a major public health problem worldwide with enormous cost burdens on health care systems in developing countries. We aimed to provide a detailed analysis of the processes and costs of haemodialysis in Sri Lanka and provide a framework for modeling similar financial audits.</p> <p>Methods</p> <p>This prospective study was conducted at haemodialysis units of three public and two private hospitals in Sri Lanka for two months in June and July 2010. Cost of drugs and consumables for the three public hospitals were obtained from the price list issued by the Medical Supplies Division of the Department of Health Services, while for the two private hospitals they were obtained from financial departments of the respective hospitals. Staff wages were obtained from the hospital chief accountant/chief financial officers. The cost of electricity and water per month was calculated directly with the assistance of expert engineers. An apportion was done from the total hospital costs of administration, cleaning services, security, waste disposal and, laundry and sterilization for each unit.</p> <p>Results</p> <p>The total number of dialysis sessions (hours) at the five hospitals for June and July were 3341 (12959) and 3386 (13301) respectively. Drug and consumables costs accounted for 70.4-84.9% of the total costs, followed by the wages of the nursing staff at each unit (7.8-19.7%). The mean cost of a dialysis session in Sri Lanka was LKR 6,377 (US$56). The annual cost of haemodialysis for a patient with chronic renal failure undergoing 2-3 dialysis session of four hours duration per week was LKR 663,208-994,812 (US$ 5,869-8,804). At one hospital where facilities are available for the re-use of dialyzers (although not done during study period) the cost of consumables would have come down from LKR 5,940,705 to LKR 3,368,785 (43% reduction) if the method was adopted, reducing costs of haemodialysis per hour from LKR 1,327 at present to LKR 892 (33% reduction).</p> <p>Conclusions</p> <p>This multi-centered study demonstrated that the costs of haemodialysis in a developing country remained significantly lower compared to developed countries. However, it still places a significant burden on the health care sector, whilst possibility of further cost reduction exists.</p

Maupassant, écrivain de la décadence ?

Pour éclairer quelque peu mon propos, qui n’a pas le mérite de l’originalité, puisque, avant moi, Mme Marie-Claire Bancquart et Michel Décaudin se sont posé la même question, il m'a paru qu'il ne serait pas inutile de rappeler en préambule quelques textes peu connus qui ont au moins le mérite de situer le problème et de lui assigner des limites. S’agissant de décadence, il était de bonne règle de se référer en premier lieu aux textes sacrés et au prophète des prophètes, Anatole Baju qui, le 1..

Le mot et la chose dans Chateaubriand

Cogny Pierre. Le mot et la chose dans Chateaubriand. In: Annales de Bretagne. Tome 75, numéro 3, 1968. Colloque Chateaubriand. pp. 623-631

Un motif rhétorique à Rome : la tête coupée sur le sable

Cogny Denise. Un motif rhétorique à Rome : la tête coupée sur le sable. In: Annales de Bretagne et des pays de l'Ouest. Tome 81, numéro 4, 1974. pp. 647-651

La destruction du couple nature-société dans l'A Rebours de J.-K. Huysmans

Cogny Pierre. La destruction du couple nature-société dans l'A Rebours de J.-K. Huysmans. In: Romantisme, 1980, n°30. pp. 61-68

Paraphrase et traduction: la paraphrase du psaume CXLV de Malherbe.

Cogny Denise-Pierre. Paraphrase et traduction: la paraphrase du psaume CXLV de Malherbe.. In: Cahier des Annales de Normandie n°14, 1982. Les écrivains normands de l'âge classique et le goût de leur temps. pp. 41-46