El proceso ecológico-fotosintético (Patente nº 8901368. CSIC), técnica de bajo coste cuya única fuente energética es la radiación solar. De gran simplicidad de funcionamiento, se fundamenta en el desarrollo ecológico de diferentes comunidades de microorganismos para evitar las interacciones negativas entre ellos. Se encuentran inmovilizados en...
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September 16, 2016 (v1)PublicationDurán-Barrantes, María de la Montaña Álvarez-Mateos, María Paloma Carta Escobar, Felisa de los ÁngelesUploaded on: March 27, 2023
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March 28, 2019 (v1)Publication
This work aims to shed light on the use of two biochars, obtained from the pyrolysis at 550 C of heavy-metal-contaminated Jatropha curcas L. roots, as heterogeneous catalysts for glycerol esterification using residual glycerine. To do this, glycerine from biodiesel production was purified. In a first step, H3PO4 or H2SO4 was used to remove...
Uploaded on: December 4, 2022 -
November 27, 2014 (v1)Publication
En este trabajo se pretende conocer la influencia de las condiciones de operación, incluida la iluminación, sobre la depuración, así como el comportamiento de cultivos microbianos preparados en condiciones diferentes. A partir de la información obtenida, se es tablecerán las condiciones óptimas de depuración, y se propondrá un modelo cinético...
Uploaded on: March 27, 2023 -
May 17, 2016 (v1)Publication
A procedure to obtain Biodiesel from "Oleinas" is studied. Biodiesel is a suitable product to replace diesel oil currently used to power the Diesel engines. It consists of a mixture of methyl esters of the fatty acids presents as triglycerides in vegetables oils (olive, sunflower, soya, rape oils). As a result of the refining of these oils for...
Uploaded on: December 5, 2022 -
May 13, 2020 (v1)Publication
Olive oil industry is one of the most important industries in the world. Currently, the land devoted to olive-tree cultivation around the world is ca. 11 106 ha, which produces more than 20 106 t olives per year. Most of these olives are destined to the production of olive oils. The main by-products of the olive oil industry are...
Uploaded on: March 27, 2023 -
December 28, 2023 (v1)Publication
This paper deals with the removal of heavy metals from marginal soil mixtures from the Cobre Las Cruces and Aznalcóllar mining areas containing high concentrations of metals (Cr, Fe, Ni, Cu, Zn, Cd, Hg, Pb and As) by means of phytoremediation using Jatropha curcas L., and the subsequent production of biocatalysts from the plant biomass. First,...
Uploaded on: December 30, 2023 -
September 16, 2016 (v1)Publication
En el presente trabajo se aplican dos modelos matemáticos a los resultados de volumen de metano generado en un proceso anaerobio, en reactores de mezcla completa con empleo de soportes arcillosos (saponita, zeolita, sepiolita calcinada y esmectita alumínica) que favorecen la adhesión de los microorganismos, ya desarrollado en la Parte I de este...
Uploaded on: March 25, 2023 -
September 16, 2016 (v1)Publication
El presente artículo se basa en el tratamiento de purines de cerdo mediante la digestión anaerobia del residuo bruto, es decir, en las condiciones que sale de las cochineras, sin previa separación de sólidos. Se proponen técnicas de inmovilización de los microorganismos mediante la adición de cuatro tipos de soportes arcillosos (saponita,...
Uploaded on: March 27, 2023 -
June 29, 2021 (v1)Publication
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Uploaded on: March 27, 2023 -
June 21, 2023 (v1)Publication
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Uploaded on: June 23, 2023 -
May 14, 2021 (v1)Publication
Bio-oil is a promising source of chemicals and renewable fuels. As the liquid phase obtained from the pyrolysis of biomass, the composition and amount of bio-oil generated depend not only on the type of the biomass but also on the conditions under which pyrolysis is performed. Most fossil fuels can be replaced by bio-oil-derived products. Thus,...
Uploaded on: December 4, 2022 -
May 31, 2017 (v1)PublicationÁlvarez-Mateos, María Paloma Durán-Barrantes, María de la Montaña Chaves Tristán, Francisca Asís (Coordinador)
El presente estudio sobre el residuo orgánico de las vasijas cerámicas del tholos de Montelirio se enfoca expresamente en los ácidos grasos, que muestran una relativa estabilidad en el tiempo. Además, se pueden emplear las relaciones entre los ácidos grasos extraídos, los cuales se degradan casi a la misma velocidad, para identificar...
Uploaded on: March 27, 2023 -
December 28, 2023 (v1)Publication
Fifty waste cooking oils (WCOs) were transesterified with methanol (1:8 WCO:methanol molar ratio) at 60 °C for 60 min using NaOH as catalyst (1% wt.). Fatty acid methyl ester (FAME) composition of the resulting biodiesels was analysed by gas chromatography, and near infrared (NIR) spectra of these biodiesels and those of the starting WCOs were...
Uploaded on: December 30, 2023 -
December 28, 2023 (v1)Publication
This paper describes the biodiesel production from waste cooking oil (50% (v/v) olive oil/sunflower oil) in an oscillatory flow reactor (OFR) in batch mode. We mainly focused on the characteristics of the biodiesel and its performance as a fuel. First at all, we verified that biodiesel yield in OFR was higher than in stirred tank reactor (STR)...
Uploaded on: December 30, 2023 -
September 9, 2020 (v1)Publication
The in situ determination of metals in plants used for phytoremediation is still a challenge that must be overcome to control the plant stress over time due to metals uptake as well as to quantify the concentration of these metals in the biomass for further potential applications. In this exploratory study, we acquired hyperspectral images in...
Uploaded on: March 27, 2023 -
February 14, 2022 (v1)Publication
Waste generated in the agri-food sector is a potential source of biomass and other products of high added value. In this work, the pyrolysis of orange waste and orange pruning was carried out to produce adsorbent biochars and characterise the bio-oils aiming for high-added-value compounds. Pyrolysis was carried out in a vertical tubular furnace...
Uploaded on: December 4, 2022 -
September 22, 2023 (v1)Publication
In this work, the extraction of phenolic compounds from orange waste (OW) obtained after the industrial extraction of neohesperidin from bitter oranges (Seville oranges) was assayed by microwave-assisted extraction (MAE) and Soxhlet extraction (SE). The extraction agents were ethanol and acetone. For SE, aqueous solutions of both extraction...
Uploaded on: October 11, 2023 -
October 17, 2023 (v1)Publication
In this work, the extraction of phenolic compounds from orange waste (OW) obtained after the industrial extraction of neohesperidin from bitter oranges (Seville oranges) was assayed by microwave-assisted extraction (MAE) and Soxhlet extraction (SE). The extraction agents were ethanol and acetone. For SE, aqueous solutions of both extraction...
Uploaded on: October 18, 2023 -
June 9, 2021 (v1)Publication
The aim of the study was to assess the influence of the addition of an oxygenated additive (a mixture of mono-, di- and triacetylglycerol obtained from residual glycerin within the biodiesel production scheme) on the specific fuel consumption and exhaust emissions of a EURO 3 diesel bus during its daily route through the city. To do this, the...
Uploaded on: December 4, 2022 -
February 27, 2015 (v1)Publication
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Uploaded on: December 4, 2022 -
June 11, 2018 (v1)Publication
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Uploaded on: March 27, 2023 -
December 9, 2022 (v1)Publication
Pectin has several purposes in the food and pharmaceutical industry making its quantification important for further extraction. Current techniques for pectin quantification require its extraction using chemicals and pro- ducing residues. Determination of pectin content in orange peels was investigated using near infrared hyper- spectral imaging...
Uploaded on: February 23, 2023