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DIALNET OAI Articles (564,376 recursos)
Dialnet (Difusión de Alertas en la Red) es una plataforma de recursos y servicios documentales, cuyo objetivo fundamental se centra en mejorar la visibilidad y el acceso a la literatura científica hispana a través de Internet.

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Mostrando recursos 61 - 80 de 12,523

61. Conlusiones.

62. El acuerdo de Viernes Santo de 1998. - Fuentetaja Rubio, Pedro

63. Los actores violentos del conflicto. - González Cussac, José Luis

64. La actuación de los actores estatales a lo largo del conflicto de Irlanda del Norte. - Galvache Valero, Francisco

65. Microbial solvent regeneration in biotreatment of air contaminated by styrene - Dumont, E.; Andrès, Y.
In this study, the biodegradation of a styrene-polluted waste gas in a reactor containing 5 L of a biphasic mixture (10:90% v/v) of organic solvent (silicone oil) � water � biomass was investigated to establish the ability of a microbial solvent regeneration. Reproducible microbial solvent regenerations have been observed. The regeneration time, which increases with the increase of the styrene load (varying from 543 to 1800 mg), leads to elimination capacity up to 48 gstyrene.m-3 mixture.h-1. The solvent regeneration requires roughly 1.2 molecule of oxygen per molecule of styrene and corresponds to the first steps of the biodegradation of the...

66. Antecedentes del conflicto de Irlanda del Norte. - Fuentetaja Rubio, Pedro; Galvache Valero, Francisco

67. Introducción. - Parente Rodríguez, Gonzalo

68. Solid-liquid two-phase partitioning bioreactors for the treatment of gas-phase VOCs - Daugulis, Andrew J.; Littlejohns, Jennifer V.; Boudreau, Neal G.
Two-Phase Partitioning Bioreactors (TPPBs) consist of a cell-containing aqueous phase and a separate, biocompatible and immiscible phase that partitions toxic substrates to the cells based on their metabolic demand and on maintaining the thermodynamic equilibrium of the system. TPPBs have traditionally used immiscible liquid organic solvents as the substrate delivery phase, however, one of the limitations of organic solvents is their potential bioavailability as substrates, and therefore these TPPB systems have generally been limited to the use of pure strains of organisms incapable of metabolizing the solvent. We have replaced the organic solvent phase in TPPBs with inert polymers (plastic...

69. Algunas aportaciones de los participantes: (Resumen intervención) - Is Maside, José Manuel

70. Las superficies comerciales en la Comarca del Nora: ¿Orden o desorden? - Pérez Fernández, José Manuel

71. Removal of a mixture of oxygenated VOCs in a biotrickling filter - Álvarez-Hornos, F. J.; Gabaldón, C.; Martínez-Soria, V.; Marzal Doménech, Paula; Penya-Roja, J. M.; Sempere, F.
Laboratory scale-studies on the biodegradation of a 1:1:1 wt mixture of three oxygenated volatile organic compounds (VOCs), ethanol, ethyl acetate and methyl-ethyl ketone (MEK) in a biotrickling filter were carried out using two identically sized columns, filled with different polypropylene rings. The reactors were seeded with a two-month preconditioned culture from activated sludge. The performance of the biotrickling filters was examined for a continuous period of 4 months at VOC concentration from 125 mg-C/m3 to 550 mg-C/m3 and at gas flow rates of around 1.0 m3/h, 2.0 m3/h and 4.6 m3/h, which correspond to gas empty bed residence times (EBRT)...

72. El Área Metropolitana Central de Asturias (AMCA) y el Plan Territorial Especial de los nudos metropolitanos en los concejos de Llanera y Siero - García Oviedo, Víctor; Méndez García, Benjamín; Ortega Montequín, Marcos

73. Luces y sombras de la Comarca del Nora - Herrán Alonso, Marta

74. El área de influencia de Oviedo: Siero y Llanera - Fernández García, Aladino

75. Biodegradation of methyl ethyl ketone and methyl isopropyl ketone in a composite bead biofilter - Chan, Wu-Chung; Peng, Kang-Hong
Biodegradation of methyl ethyl ketone (MEK) and methyl isopropyl ketone (MIPK) in a composite bead biofilter was investigated. Both microbial growth rate kg and biochemical reaction rate kd would be inhibited at higher inlet concentration. The kg and kd values of MEK were greater than those of MIPK in the average inlet concentration of 100-300 ppm. For the microbial growth process, the degree of inhibitive effect was almost the same sensitivity for two ketone compounds. Zeroorder kinetic with the diffusion rate limitation could be regarded as the most adequate biochemical reaction model. For the biochemical reaction process, the inhibitive effect...

76. Introducción - Alonso Ibáñez, María del Rosario

77. Conclusiones - Alonso Ibáñez, María del Rosario

78. Aspectos sanitarios del Medio Ambiente. - Aguilera Martínez, Ángel

79. Los instrumentos de planificación urbanística que inciden significativamente en el desarrollo del municipio avilesino - Villarino Samalea, Gonzalo

80. Construcción bioclimática, reciclaje y residuos. - Cercós García, Luis Francisco

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