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Articles 17 records found  previous11 - 17  jump to record: Search took 0.00 seconds. 
11.
28 p, 1.0 MB Different indices to express biodegradability in organic solid wastes / Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Gea Leiva, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Respiration indices are suggested in literature as the most suitable stability determination and are proposed as a biodegradability measure in this work. An improved dynamic respiration index methodology is described in this work. [...]
2010 - 10.2134/jeq2009.0294
Journal of environmental quality, Vol. 39, No. 2, p. 706-712 (2010)  
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12.
46 p, 577.4 KB Composting of dewatered wastewater sludge with various ratios of pruning waste used as a bulking agent and monitored by respirometer / Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Pagans i Miró, Estel·la (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
The effects of different volumetric ratios of wastewater sludge to bulking agent on the performance of full-scale composting were studied. Volumetric ratios of wastewater sludge to pruning waste, used as a bulking agent, were 1:2 (Pile 1), 1:2. [...]
2009 - 10.1016/j.biosystemseng.2009.01.002
Biosystems engineering, Vol. 102, Issue 4 (Apr. 2009) , p. 433-443  
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13.
33 p, 544.1 KB In search of a reliable technique for the determination of the biological stability of the organic matter in the mechanical-biological treated waste / Barrena Gómez, Raquel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Imporzano, Giuliana d' (Università Degli Studi di Milano. Dipartimento di Produzione Vegetale) ; Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Gea Leiva, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Artola Casacuberta, Adriana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Vázquez Lima, Felícitas (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ; Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Adani, Fabrizio (Università Degli Studi di Milano. Dipartimento di Produzione Vegetale)
The biological stability determines the extent to which readily biodegradable organic matter has decomposed. In this work, a massive estimation of indices suitable for the measurement of biological stability of the organic matter content in solid waste samples has been carried out. [...]
2009 - 10.1016/j.jhazmat.2008.05.141
Journal of hazardous materials, Vol. 162, Issues 2-3 (March 2009) , p. 1065-1072  
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14.
29 p, 1002.3 KB Comparison of aerobic and anaerobic stability indices through a MSW biological treatment process / Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Gea Leiva, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Alerm, Llorenç (Entitat Metropolitana de Serveis Hidràulics i Tractament de Residus) ; Cerezo, Javier (Ecoparc del Besòs, S. A.) ; Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
A complex mechanical-biological waste treatment plant designed for the processing of mixed municipal solid wastes (MSW) and source-selected organic fraction of municipal solid wastes (OFMSW) has been studied by using stability indices related to aerobic (respiration index, RI) and anaerobic conditions (biochemical methane potential, BMP). [...]
2008 - 10.1016/j.wasman.2007.12.002
Waste management, Vol. 28, issue 12 (Dec. 2008) , p. 2735-2742  
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15.
8 p, 237.4 KB Enhancement of thermophilic anaerobic sludge digestion by 70ºC pre-treatment : energy considerations / Ferrer, Ivet (Universitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental) ; Serrano, E. (Universitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental) ; Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Vázquez Lima, Felícitas (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ; Font i Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
The objective of this work was to investigate the effect of a low temperature pre-treatment (70°C) on the thermophilic anaerobic digestion of sewage sludge. Experimental results were used for the calculation of theoretical energy balances of full-scale digesters with and without pre-treatment step. [...]
2009
Journal of residuals science & technology, Vol 6, No. 1 (Jan. 2009) , p. 11-18  
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16.
21 p, 1.5 MB Optimization of the hydrolytic-acidogenic anaerobic digestion stage (55ºC) of sewage sludge : influence of pH and solid content / Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Ferrer, Ivet (Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyeria Industrial de Barcelona) ; Vázquez Lima, Felícitas (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ; Font i Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
In conventional single-stage anaerobic digestion processes, hydrolysis is regarded as the rate-limiting step in the degradation of complex organic compounds, such as sewage sludge. Two-stage systems have been proposed to enhance this process. [...]
2008 - 10.1016/j.watres.2008.07.002
Water research, Vol. 42, Issue 14 (Aug. 2008) , p. 3972-3980  
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17.
28 p, 813.8 KB Increasing biogas production by thermal (70ºC) sludge pre-treatment prior to thermophilic anaerobic digestion / Ferrer, Ivet (GIRO Technological Centre) ; Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Vázquez Lima, Felícitas (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ; Font i Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
The objective of this work was to investigate the effect of a low temperature pre-treatment (70 °C) on the efficiency of thermophilic anaerobic digestion of primary and secondary waste sludge. Firstly, effect of sludge pre-treatment time (9, 24, 48 and 72 h) was evaluated by the increase in volatile dissolved solids (VDSs), volatile fatty acids (VFAs) and biogas production in thermophilic batch tests. [...]
2008 - 10.1016/j.bej.2008.06.020
Biochemical engineering journal, Vol. 42, Issue 2, (Nov. 2008) p. 186-192  
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