1,687 research outputs found
Maria Alessandra Segantini + Carlo Cappai: Translation Architecture
No full textProfessor of Practice Maria Alessandra Segantini and Carlo Cappai, partners of C + S Associati, Treviso, Italy, will lecture
La tecnologia sostenibile approda all’Arsenale. L’Harbour Brain Building dei C+S per il MOSE di Venezia
No full textPresentazione del progetto dei C+S Associati, architetti Carlo Cappai e Maria Alessandra Segantini, autori del progetto Harbour Brain Building. Un vecchio edificio in disuso dell’Arsenale di Venezia è recuperato per ospitare la stazione di controllo del traffico marittimo alle bocche del porto di Venezia, all’interno del grande progetto MOSe di iorganizzazione del bacino della città lagunare
sj-pdf-1-wmr-10.1177_0734242X221103940 – Supplemental material for Dark fermentative volatile fatty acids production from food waste: A review of the potential central role in waste biorefineries
No full textSupplemental material, sj-pdf-1-wmr-10.1177_0734242X221103940 for Dark fermentative volatile fatty acids production from food waste: A review of the potential central role in waste biorefineries by Fabiano Asunis, Giovanna Cappai, Alessandra Carucci, Giorgia De Gioannis, Paolo Dessì, Aldo Muntoni, Alessandra Polettini, Raffaella Pomi, Andreina Rossi, Daniela Spiga and Cristina Trois in Waste Management & Research</p
Uso della specie Atriplex Halimus in progetti di fitorisanamento di suoli contaminati da metalli pesanti nell'area di Campo Pisano (Sardegna)
No full textUse of industrial wastewaters for the optimization and control of nitrogen removal processes
No full textIn this experimental study the characterization of 2 industrial wastewaters, coming from an ice
cream production industry (IW1) and a beet-sugar factory (IW2), with respect to their readily biodegradable
fraction and denitrification potential, has been performed. To this end physical-chemical and biological
characterization methods, both anoxic and aerobic, were used. Moreover a pilot scale SBR fed with
municipal wastewater was started to verify the effect of the gradual addition of the concentrated organic
wastewaters during the anoxic phase. The SBR was initially fed only with a primary municipal wastewater,
then the organic load was increased by adding to the feed, during the anoxic phase, a small amount of the
IW1 (second period). Once the initial conditions were restored the load was again raised using the second
industrial wastewater (IW2) (third period). With those additions the nitrogen removal efficiency increased
from 26% to 50%, in the case of the IW1 and from 23% to 53% in the case of the wastewater IW2, without
any negative effect on the global performance of the system. In addition, periodical kinetic studies of
denitrification and nitrification in the SBR, were performed
Titration biosensors for the estimation of the biochemical nitrate demand of municipal and industrial wastes
No full textAn anoxic titrimetric test was investigated for measuring denitrification potential of different wastewaters, both municipal and industrial, and to quantify the denitrifying activity in an activated sludge system. The method measures the amount of acid that is required to maintain the pH set-point value in a batch denitrification experiment, and it was performed using a DENICON
(denitrification controller) biosensor. The amount of acid is proportional to the nitrate used to oxidise the biodegradable chemical oxygen demand present in the wastewater, while the acid consumption rate is used to derive the denitrifying activity. The wastewaters tested were a municipal wastewater (MW), an industrial-municipal wastewater (MIW; 70% and 30%, respectively), and four industrial wastewaters drawn from an ice-cream factory (IW1), a beet-sugar factory (IW2), a brewery (IW3), and a tuna cannery industry (IW4). Good correlation between titration data and analyses was found
Biodegradability and toxicity of pharmaceuticals in biological wastewater treatment plants
No full textIn this experimental study both biological treatability of pharmaceuticals and their potential toxic effect in biological processes were evaluated. The pharmaceuticals were selected among those that are present at higher concentration in the Italian wastewater treatment plant effluents and widely used as antiulcer (ranitidine), beta-blocker (atenolol) and antibiotic (lincomycin). The present paper is the continuation of a work already presented,[1] which used a synthetic wastewater fed to laboratory scale SBR (Sequencing Batch Reactor) operated with different sludge ages (8 and 14 days), different biochemical conditions (aerobic or anoxic-aerobic mode) and several influent drug concentrations (2, 3 and 5 mg/L). In this case a real municipal wastewater was used as influent to the SBR. In parallel, batch tests were conducted to determine the removal kinetics of drugs and nitrogen. Toxicity tests using a titrimetric biosensor to verify possible inhibition on microorganisms were also performed. Finally, the possible adsorption of the pharmaceuticals on activated sludge was evaluated. The drugs under investigation showed different behaviours in terms of both biodegradability and toxicity effect on nitrifiers. Ranitidine showed generally low removal efficiencies (17-26%) and a chronic inhibition on nitrification. Atenolol showed generally higher removal efficiencies than ranitidine, even if the fairly good efficiency obtained in the previous experimentation with synthetic wastewater (up to 90%) was not attained with real wastewater (36%). No inhibition on nitrification was observed on both acclimated and non acclimated microorganisms with a high nitrification activity, whilst it was present with activated sludge characterised by a lower nitrification activity. Consistently with his pharmaceutical properties, lincomycin showed significant inhibition on nitrification activity
Feasibility of refinery wastewater and ballast water cotreatment in a Sequencing Batch Reactor
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