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Giordano Urbini   Professor  Senior Scientist or Principal Investigator 
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Giordano Urbini published an article in January 2015.
Top co-authors See all
Vincenzo Torretta

115 shared publications

Department of Theoretical and Applied Sciences, Insubria University, 21100 Varese, Italy

Marco Ragazzi

67 shared publications

Department of Civil Environmental and Mechanical Engineering, University of Trento, 38123 Trento, Italy

Elena Cristina Rada

64 shared publications

Department of Industrial Engineering and Management, Lucian Blaga University of Sibiu; 550024 Sibiu, Romania

Paolo Viotti

51 shared publications

Department of Civil Engineering, La Sapienza University, 00184 Roma, Italy

Massimo Raboni

45 shared publications

School of Industrial Engineering, LIUC – University Cattaneo, Castellanza, VA, Italy

13
Publications
26
Reads
4
Downloads
45
Citations
Publication Record
Distribution of Articles published per year 
(2013 - 2015)
Total number of journals
published in
 
7
 
Publications See all
Article 0 Reads 4 Citations Oxygen Control and Improved Denitrification Efficiency by Means of a Post-Anoxic Reactor Giordano Urbini, Renato Gavasci, Paolo Viotti Published: 23 January 2015
Sustainability, doi: 10.3390/su7021201
DOI See at publisher website ABS Show/hide abstract
The presence of dissolved oxygen (DO) in biological denitrification reactors determines inhibition effects on the denitrification rate. The article shows the results of an experimental study to control the DO concentration in the pre-denitrification stage by a post-anoxic reactor. The results demonstrate that the post-anoxic reactor is very effective in improving the nitrogen removal efficiency because it causes a considerable reduction of the DO content in the mixed liquor recycle sent to the pre-denitrification reactor. This reduction is influenced by both the retention time and the F:M ratio (referred to the denitrification and the oxidation-nitrification volume). In fact, a retention time and a F:M ratio equal to 1.5 h and 0.130 kgBOD5 kgMLVSS−1·day−1, respectively, allow to limit DO in the post-anoxic reactor at 0.31 mgO2·L−1. Such concentration determines a DO concentration of 0.11 mgO2·L−1 in the pre-denitrification reactor and, consequently, a denitrification efficiency of 91%. Moreover, the contribution of the endogenous denitrification to the whole denitrification efficiency was found negligible. The paper contributes to the progress in nitrogen removal from sewage, a fundamental issue for a sustainable management of water resources.
Article 2 Reads 5 Citations Automotive shredder residue: A survey of the hazardous organic micro-pollutants spectrum in landfill biogas Massimo Raboni, Vincenzo Torretta, Giordano Urbini, Paolo Vi... Published: 26 November 2014
Waste Management & Research, doi: 10.1177/0734242X14559300
DOI See at publisher website PubMed View at PubMed
Article 2 Reads 3 Citations UASB followed by Sub-Surface Horizontal Flow Phytodepuration for the Treatment of the Sewage Generated by a Small Rural ... Massimo Raboni, Renato Gavasci, Giordano Urbini Published: 09 October 2014
Sustainability, doi: 10.3390/su6106998
DOI See at publisher website ABS Show/hide abstract
The paper presents the results of an experimental process designed for the treatment of the sewage generated by a rural community located in the north-east of Brazil. The process consists of a preliminary mechanical treatment adopting coarse screens and grit traps, followed by a biological treatment in a UASB reactor and a sub-surface horizontal flow phytodepuration step. The use of a UASB reactor equipped with a top cover, as well as of the phytodepuration process employing a porous medium, showed to present important health advantages. In particular, there were no significant odor emissions and there was no evidence of the proliferation of insects and other disease vectors. The plant achieved the following mean abatement efficiencies: 92.9% for BOD₅, 79.2% for COD and 94% for Suspended Solids. With regard to fecal indicators average efficiencies of 98.8% for fecal coliforms and 97.9% for fecal enterococci were achieved. The UASB reactor showed an important role in achieving this result. The research was also aimed at evaluating the optimal operating conditions for the UASB reactor in terms of hydraulic load and organic volumetric loading. The achieved results hence indicated that the process may be highly effective for small rural communities in tropical and sub-tropical areas.
Article 3 Reads 2 Citations Production and use of biogas in Europe: a survey of current status and perspectives Massimo Raboni, Giordano Urbini Published: 26 June 2014
Ambiente e Agua - An Interdisciplinary Journal of Applied Science, doi: 10.4136/ambi-agua.1324
DOI See at publisher website
Article 1 Read 8 Citations Calculating specific denitrification rates in pre-denitrification by assessing the influence of dissolved oxygen, sludge... Massimo Raboni, Vincenzo Torretta, Paolo Viotti, Giordano Ur... Published: 22 May 2014
Environmental Technology, doi: 10.1080/09593330.2014.913690
DOI See at publisher website PubMed View at PubMed
Article 0 Reads 8 Citations Assessment of Biological Kinetics in a Conventional Municipal WWTP by Means of the Oxygen Uptake Rate Method Vincenzo Torretta, Marco Ragazzi, Ettore Trulli, Giovanni De... Published: 09 April 2014
Sustainability, doi: 10.3390/su6041833
DOI See at publisher website ABS Show/hide abstract
Pollution control of surface water bodies requires stringent checks on wastewater treatment plants performances. The satisfactory operation of biological treatment, commonly performed by means of activated sludge processes, requires a number of controlling and monitoring procedures. Suitable respirometric techniques for the determination of the kinetic parameters that regulate biological processes have been implemented in order to achieve this aim. This paper describes the results of an experimental research carried out in a conventional Italian municipal wastewater treatment plant. Particularly, the research has been finalized to both evaluate the biological process for the removal of biodegradable pollutants, such as carbonaceous substrates and ammonia nitrogen, and to collect data in order to evaluate a possible plant upgrade. Heterotrophic and autotrophic biomass kinetic parameters have been examined using respirometric techniques based on oxygen uptake measurements. The research performed makes a valuable contribution toward verifying the reliability of the values proposed in the literature for some kinetic parameters, which have been commonly used for a long time.
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