0000000000138425
AUTHOR
J. Ferrer
Valorización de residuos con cromo del sector galvánico para su utilización como licor curtiente
El presente trabajo desarrolla la metodología necesaria para el acondicionamiento y valorización de los baños agotados de Cr (VI), provenientes de la industria galvánica, para su utilización como licor curtiente en el sector de curtición.
A Semi-Industrial Anmbr Plant for Urban Wastewater Treatment at Ambient Temperature: Analysis of the Filtration Process, Energy Balance and Quantification of GHG Emissions
A semi-industrial scale AnMBR urban wastewater treatment plant was operated for 580 days at ambient temperature (ranging from 10-30 ○C) to assess its long-term filtration performance, energy balance and GHG emissions. The applied 20ºC-standardized transmembrane flux (J20) was varied between 15 and 25 LMH and the specific gas demand per m2 of membrane (SGDm) was modified between 0.10 to 0.40 Nm3·m-2·h-1 (corresponding to a specific gas demand per permeate volume (SGDP) between 10 to 20 Nm3·m-3). The filtration strategy allowed successful long-term operations without any chemical cleaning requirements and little fouling for 233 days. The plant operated as a net energy producer for more than 5…
Dynamic Membranes for Enhancing Resources Recovery from Municipal Wastewater
[EN] This paper studied the feasibility of using dynamic membranes (DMs) to treat municipal wastewater (MWW). Effluent from the primary settler of a full-scale wastewater treatment plant was treated using a flat 1 mu m pore size open monofilament polyamide woven mesh as supporting material. Two supporting material layers were required to self-form a DM in the short-term (17 days of operation). Different strategies (increasing the filtration flux, increasing the concentration of operating solids and coagulant dosing) were used to enhance the required forming time and pollutant capture efficiency. Higher permeate flux and increased solids were shown to be ineffective while coagulant dosing sh…
Topological Linearly Ordered Spaces Determined by Pervin's Quasi-uniformity
: In this paper we study those uniform linearly ordered spaces that are determined by Pervin's quasi-uniformity. In particular, we show that the space of all countable ordinals is determined by a unique quasi-uniformity.
Tecnología de biorreactores anaerobios de membrana (AnMBR) para tratamiento de aguas residuales urbanas y reutilización de agua en agricultura. Una simbiosis en el marco de la Economía Circular
La combinación de la tecnología de biorreactores anaerobios de membrana (AnMBR, por sus siglas en inglés) para el tratamiento de aguas residuales y la reutilización de su efluente en agricultura da como resultado un concepto más sostenible para la depuración, donde las aguas residuales se convierten en una fuente de energía (biogás) y nutrientes (nitrógeno y fósforo) a la vez que se genera un recurso alternativo de agua que puede ayudar a paliar la escasez a la que nos enfrentamos a nivel global. Sin embargo, para aprovechar los beneficios del agua regenerada y los recursos recuperados de las aguas residuales se necesitan políticas inteligentes que brinden flexibilidad para la implementació…
Toxicity reduction of ochratoxin A by lactic acid bacteria.
Abstract Ochratoxin A (OTA) is a mycotoxin produced by the metabolism of fungus belonging to the genus Aspergillus and Penicillium. In this paper we report, the capacity of different cultures of lactic acid bacteria (LAB) to degrade OTA present in MRS broth at both pH 3.5 and 6.5. A study of OTA reduction during gastrointestinal digestion carried out with the LAB was also performed. Taking into account the two reduction mechanisms of OTA studied in this work as the enzymatic one and the adsorption on the cell wall, as well as at pH 3.5 and 6.5 the reduction values of OTA were in a range of 30–99%, being the strains with greater reduction (97% and 95%) Lb. rhamnosus CECT 278T and Lb. plantar…