1,721,043 research outputs found
Extension of the SMART-Plant concept to small wastewater treatment plants
No full textScale-up of low-carbon footprint MAterial Recovery Techniques in existing wastewater treatment PLANTs
The project will prove the feasibility of circular management of urban wastewater and environmental sustainability of the systems and co-benefits of scaling-up water solutions through Life Cycle Assessment and Life Cycle Costing approaches.
The presentation was held by Francesco Fatone on September 14th in Athens ( Greece) at the 13th IWA Specialized Conference on Small Water and Wastewater Systems (SWWS) and 5th IWA Specialized Conference on Resources-Oriented Sanitation (ROS)www.smart-plant.e
Chapter 18 - Membrane BioReactors: A Cost-Effective Solution to Enhance the Removal of Xenobiotics from Urban Wastewaters? Francesco Fatone
No full text
Pilot plant experiences on nutrients and E. coli removal in aerobic layer of WW finishing ponds
No full textCircular economy model encourages to develop new strategies in the wastewater treatment plants (WWTPs) management. The implementation of good practices in WWTPs management allows to reach different goals (wastewater reuse, energy production and raw material reservoir). At the same time, water scarcity has become more prominent in the last decades and reuse and valorization of water from WWTPs can help solving the problem.
The implementation of natural system as finishing treatment for wastewater reuse could be a smart alternative in existing urban WWTPs.
In this context this study focuses on the processes occurring in the aerobic layer of a hybrid natural treatment plant : aerobic lagoon/Phytotreatment FWS with Lemna. This layer is crucial to reduce the concentrations under the legal thresholds of the following parameters: 1) Escherichia coli 2) Nitrogen Ammonia 3)Total Nitrogen(TN). The aim of the study is to verify the disinfection and nitrification capacity in this layer to suggest more efficient management policies in terms of ratio between surface occupied (phytotreatment) and not occupied (lagoon) by Lemna.
To this aim, a pilot plant was built in the Santerno WWTP area (Imola, Italy). The influent flow comes from the outlet of the full scale plant pumped using a peristaltic pump (QIN = 0.03 l/s). The retention time is similar to a real lagoon and to obtain an adequate turbolent flow the output is recirculated with 0.55 kW pump in the inlet section (QREC = 1.03 l/s).
The monitoring results show the role of Lemna to guarantee the phosphorus (from 15% to 30%) and nitrogen (from 10% to 20%) compounds removal.
The influence of algal photosyntesys to the dissolved oxygen concentration in water column has been observed. In those cases interesting nitrification and nitrogen extraction removal rates were measured (from 15% to 40 %). Moreover, an E.coli removal efficiency around 90% was obtained
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Processo per la purificazione di liquami municipale, zootecnici e/o industriali mediante rimozione di azoto ammoniacale e fosfati da un surnatante anaerobico
No full textLa presente invenzione si riferisce ad un processo per la depurazione di liquami municipali e/o\ud
industriali o zootecnici, in particolare per la rimozione biologica di nutrienti quali azoto e fosforo,\ud
mediante trattamento con un prodotto di fermentazione alcalina di fanghi di depurazione e/o di\ud
biomasse umide, del surnatante ottenuto da un digestore anaerobico.\ud
In particolare, il presente processo permette l’eliminazione via nitrito, fino ad azoto gas inerte,\ud
dell’azoto ammoniacale, con il contemporaneo iper-accumulo biologico di fosforo nei fanghi\ud
residui, mediante l’utilizzo di una miscela di acidi grassi a catena corta (o fonte di Carbonio\ud
esterna), derivante dalla fermentazione alcalina di parte dei fanghi di depurazione e/o di biomasse\ud
umide, anche diretti al digestore anaerobico.\ud
Vantaggiosamente il presente processo può essere utilizzato per la depurazione dei liquami\ud
municipali e/o industriali o zootecnici, ottenendo inoltre dei fanghi residui aventi un iper-accumulo\ud
di fosforo e significativa quantità di poliidrossialcanoati, potenzialmente utili ad esempio in\ud
agricoltura come concimi o fertilizzanti o anche in campo delle materie plastiche come precursori\ud
di bioplastiche
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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