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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Di Trapani, Daniele Di Bella, Gaetano Torregrossa, Michele Viviani, Gaspare Mannina, Giorgio |
| Description | Author Affiliation: Di Trapani D ( Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali - Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy. Electronic address: daniele.ditrapani@unipa.it.); Di Bella G ( Facoltà di Ingegneria e Architettura - Università di Enna 'Kore', Cittadella Universitaria, 94100 Enna, Italy.); Mannina G ( Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali - Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy.); Torregrossa M ( Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali - Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy.); Viviani G ( Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali - Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy.) |
| Abstract | The effect of a sharp variation of C/N ratio in a moving bed membrane bioreactor (MB-MBR) pilot plant treating high strength wastewater has been investigated. The experimental campaign was divided into two periods, each characterized by a different C/N ratio (namely, 2.5 and 15, Period 1 and Period 2, respectively). The MB-MBR system was analyzed in terms of organic carbon removal, nitrification efficiency, biokinetic activity and fouling behavior. The results showed that the nitrification process was severely affected by lower C/N value and by high concentration of ammonia. It was noticed an extensive stress effect on the autotrophic bacteria. Furthermore, it was observed an increase of the resistance related to particle deposition into membrane pores, likely due to a worsening of the cake layer features, with a reduction of the 'pre-filter' effect, also related to the increase of the total Extracellular Polymeric Substances production with the C/N ratio. |
| ISSN | 09608524 |
| Volume Number | 189 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-08-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Bioreactors Carbon Analysis Membranes, Artificial Nitrogen Ammonia Metabolism Bacteria Biofilms Biofouling Biological Oxygen Demand Analysis Biomass Biopolymers Oxidation-reduction Pilot Projects Waste Disposal, Fluid Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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