Search results for "SBR"

A 3-week feed restriction after weaning as an alternative to a medicated diet: effects on growth, health, carcass and meat traits of rabbits of two g…

2017

Feed restriction after weaning is widely used in meat rabbit farms to promote health and reduce mortality, but this practice impacts negatively on rabbit growth and slaughter performance. This study compared a 3-week post-weaning feed restriction with ad libitum medicated feeding, evaluating effects on feed intake, growth, health, carcass and meat quality of rabbits of two genotypes: Italian White pure breed and Hycole hybrid×Italian White crossbred. A total of 512 rabbits at 36 days of age, of both sexes and two genotypes, were divided into four homogeneous groups assigned, from 36 to 57 days of age, to different feeding programmes (FP): restricted non-medicated (R-N), ad libitum non-medic…

Sbarchi

2020

Fare riferimento agli sbarchi in termini di numero e di caratteristiche diviene un tema centrale per confermare o meno il possibile rischio “invasione” e per affrontare l’“emergenza immigrazione”. Questa tematica è passata nel corso degli anni da una fase emergenziale a una fase di assuefazione determinata dalle numerose informazioni sui migranti provenienti da diverse parti del mondo e nello specifico, dal Mar Mediterraneo. Gli sbarchi non possono essere ridotti esclusivamente agli “arrivi”, ma devono essere letti e inquadrati in una cornice più ampia che tenga in considerazione anche la diffusione di altri aspetti come la storia individuale, i per- corsi, i progetti e le visioni personali…

High-power picosecond quasi-CW 1.3 µm Nd-laser passively modelocked using novel low-loss GaInNAs SBRs

2003

Continuous-Flow Synthesis of Orange Emitting Sn(II)-Doped CsBr Materials

2021

An ongoing demand toward lead-free all-inorganic cesium metal halide perovskites has presented Sn(II) as an ideal substitute of Pb(II) for applications in optoelectronic devices. The major concern regarding Sn(II) is the instability due to the ambient oxidation to Sn(IV). To expand the scope of traditional perovskite and analogues, herein the synthesis and optical performance of Sn(II)-doped CsBr, a new material formed by interstitial doping of Sn(II) into the CsBr matrix, are reported for the first time. This material is prepared following an antisolvent mediated recrystallization method using a continuous flow reactor, which is beneficial for scaling up the production compared to traditio…

I reattori aerobici granulari: esperienze con refluo reale e sintetico

2008

La granulazione aerobica può essere ottenuta nei sistemi con alimentazione discontinua in due differenti configurazioni impiantistiche, che permettono di realizzare i necessari sforzi tangenziali per la formazione dei granuli: il Sequencing Batch Bubble Column Reactor (SBBC) e il Sequencing Batch Airlift Reactor (SBAR). Lo scopo di questo studio è stato quello di osservare il fenomeno della granulazione aerobica e valutare il ruolo del tempo di sedimentazione durante la fase di selezione e formazione dei granuli. L’intera sperimentazione è stata suddivisa in due diverse campagne sperimentali in cui è stato utilizzato refluo sintetico, nella prima, e refluo reale, nella seconda. Al fine di e…

Low-loss 1.3 µm GaInNAs saturable Bragg reflector for high-power picosecond neodymium lasers

2002

CO-TREATMENT OF LANDFILL LEACHATE IN SBR SYSTEM: LAB-SCALE CASE STUDY REPORT

2015

SUMMARY: Landfill leachate represents nowadays one of the most controversial topics in the waste management cycle. A possible alternative for treating aged landfill leachate is represented by the co-treatment with municipal wastewater (MWW) that provides the necessary amount of biodegradable substances to enhance the development of bacteria metabolism. The correct tradeoff between landfill leachate and MWW represent a key factor in order to avoid inhibition of biomass activity. The paper reports the results of an experimental research carried out on two lab-scale Sequencing Batch Reactors (SBRs) fed with synthetic wastewater and landfill leachate in different percentages (SBR1 fed with 20% …

TREATMENT OF LANDFILL LEACHATE IN SBR SYSTEMS: ANALYSIS OF BIOMASS ACTIVITY BY MEANS OF RESPIROMETRIC TECHNIQUES

2013

In the last decades landfilling has been the main method of municipal solid waste (MSW) disposal in many countries. MSW landfills are usually considered as a large biological reactor where the MSWs undergo anaerobic digestion producing gas and liquid emissions. Aged, or mature leachate, which is produced by older landfills, can be very refractory; for this reason mature leachate is difficult to treat alone, but it can be co-treated with sewage or domestic wastewater. The aim of the study was to investigate the feasibility of co-treatment of landfill leachate and synthetic wastewater in different percentages, in terms of process performance and biomass activity, by means of respirometric tec…

Integrated production of biopolymers with industrial wastewater treatment: Effects of OLR on process yields, biopolymers characteristics and mixed mi…

2022

The production of polyhydroxyalkanoates (PHA) using industrial wastewaters as feedstocks is a current and challenging topic. This study investigated the production of biopolymers by a mixed microbial culture under different OLRs equal to 1 kgCOD m-3d-1 (Period 1), 2 kgCOD m-3d-1 (Period 2) and 3 kgCOD m-3d-1 (Period 3). The maximum PHA content was achieved in Period 2 (0.38 gPHA gTSS-1), whereas lower values were obtained in Period 1 (0.13 gPHA gTSS-1) and Period 3 (0.26 gPHA gTSS-1). Overall, the maximum PHA productivity resulted equal to 0.08 gPHA L-1h-1 (P2), 0.05 gPHA L-1h-1 (P1) and 0.04 gPHA L-1h-1 (P3), respectively. The molecular weight of the PHA increased from Period 1 (250 kDa) t…

Schede delle opere. Jules Van Biesbroeck jr, Jules Van Biesbroeck sr, Natale Attanasio, Giuseppe Casciaro, Michele Catti, Ettore Cercone, Domenico Co…

2015

Schede storico-critiche delle opere della mostra, a cura di G. Barbera, Jules Van Biesbroeck. Un fiammingo a Palermo nel primo novecento, tenutasi presso la Galleria d'Arte Moderna di Palermo dal 30 ottobre 2015 al 10 gennaio 2016. Le opere del pittore e scultore Jules Van Biesbroeck jr. (Portici 1873 – Bruxelles 1965), artista cosmopolita e raffinato, di origine belga ma a lungo attivo in Italia, rappresentano una testimonianza di notevole interesse, fin qui misconosciuta e poco indagata, dell’attività di questo artista e rivelano le sue matrici tardo-romantiche e secessioniste unite agli accenti simbolisti che ne caratterizzano il linguaggio stilistico. La sua presenza e quella del padre …