117,375 research outputs found
Dal punto di vista della cultura teatrale: trasmissione, improvvisazione, re(l)azione
No full textCuratori: Clelia Falletti e Gabriele Sofia
Il sistema, le "Conversazioni", l'"Etica": introduzione
No full textNuova ed. riveduta di Stanislavskij: L'attore creativ
Associazioni giovanili e feste antiche loro origini
No full textAssociazioni giovanili e feste antiche loro origini / G. C. Pola Falletti-Villafalletto. - Torino : Comitato di difesa dei fanciulli, 1939
Dedica manoscritta dell\u27autore: a S.a E.a Bodrero / Senatore del Regno / in omaggio / l\u27A.
https://galileodiscovery.unipd.it/discovery/fulldisplay?context=L&vid=39UPD_INST:VU1&search_scope=MyInst_and_CI&tab=Everything&docid=alma99001230231020604
Associazioni giovanili e feste antiche loro origini
No full textAssociazioni giovanili e feste antiche loro origini / G. C. Pola Falletti-Villafalletto. - Torino : Comitato di difesa dei fanciulli, 1942
Dedica manoscritta dell\u27autore: All\u27Eccellenza Bodrero / Accademico d\u27Italia / in omaggio l\u27A.
https://galileodiscovery.unipd.it/discovery/fulldisplay?context=L&vid=39UPD_INST:VU1&search_scope=MyInst_and_CI&tab=Everything&docid=alma99001230233020604
Upgrading of activated sludge wastewater treatment plants with hybrid moving bed biofilm reactors
No full textThis paper focuses on hybrid moving-bed biofilm reactors (MBBRs). For this research, we arranged a pilot-scale activated sludge plant with an anoxic tank (1 m(3)), an aerated tank (1 m(3)), and a settler (1 m(3)); it was fed with municipal wastewater (at a rate of 300 L/h). This plant removed only 11% of the NH4-N, so the aerated tank was divided into two reactors and polyethylene carriers were placed into each reactor. The upgraded plant removed 86% of the ammonium and 73% of the total nitrogen. The following step was a full-scale plant. A municipal activated sludge wastewater treatment plant, originally built for 3000 p.e., received a nitrogen load corresponding to 5800 p.e. (The term "p.e." represents the persons equivalent.) A sector of each aerated tank was transformed to a hybrid MBBR: the aeration equipment was changed and polyethylene carriers were placed in these sectors. With an incoming total Kjeldahl nitrogen (TKN) concentration of 79 mg/L, the outgoing NH4-N concentration was <1 mg/L
Polyfluorinated Organic Micropollutants Removal from Water by Ion Exchange and Adsorption
No full textPolyfluorinated organic micropollutants have been recently found in ground water in some industrialized areas of Veneto Region (north-east Italy). Very recent studies evidenced their presence also in River Lambro near Milan (Castiglioni et al, 2015). These compounds can be removed by adsorption on activated carbon with high efficiency, but frequent regeneration is requested especially because of polyfluorobutylic acid (PFBA) and polyfluorobutyl sulfonate (PFBS) that saturate activated carbon much more quickly than heavier molecules as polyfluoro-octanoic acid (PFOA) and polyfluoroctyl sulfonate (PFOS). In this research work an alternative solution based on ion exchange resins and/or polystyirenic adsorbents was tested both in laboratory with batch tests and on pilot-scale with a continuously fed plant. Experimental work is still in progress and is focused on five different materials supplied by Purolite® Italia and called respectively A600E, PAD500, PAD428, A520E and MN10
Nitrogen removal improvement in small wastewater treatment plants with hybrid and tertiary moving bed biofilm reactors
No full textThis paper focuses on two small wastewater treatment plants that have been upgraded with MBBRTM after a pilot-scale study. The first plant was built for 3000 p.e., the actual load was 5800 p.e. as nitrogen. In this plant each aerated tank was divided into two sectors: the first one was kept as an activated sludge tank, the second one was transformed into a hybrid MBBRTM; after biofilm growth, average pollutants concentrations were 484 mg/l COD and 79 mg/l TKN in the raw wastewater, 50 mg/l COD and 0.64 mg/l NH4-N in the final effluent. The second plant was built for 400 p.e., the actual load was 549 p.e. as nitrogen. In this plant a sludge thickener was transformed into a denitrification tank, an out-of-use tank was recovered as a tertiary nitrification MBBRTM; after biofilm growth average pollutants concentrations in the raw wastewater were 456 mg/l COD and 58.8 mg/l NH4+; activated sludge tanks removed 360 mg/l COD and 28.9 mg/l NH4+, tertiary MBBRTM removed 14 mg/l COD and 10.6 mg/l NH4+. These results prove that hybrid and tertiary MBBRTM are good solutions to upgrade small plants without building new tanks
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