Browsing by Subject "Algae"
Now showing items 1-20 of 22
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Anaerobic digestion of microalgal biomass after ultrasound pretreatment
(2014-11-01)
Article
Restricted access - publisher's policyHigh rate algal ponds are an economic and sustainable alternative for wastewater treatment, where microalgae and bacteria grow in symbiosis removing organic matter and nutrients. Microalgal biomass produced in these systems ... -
Cheaper membrane materials for microalgae dewatering
(Springer, 2014-10-01)
Article
Open AccessAmong different strategies to reduce costs in microalgae dewatering process via cross-flow filtration, the one related to membrane material was investigated in order to be decreased. Several materials were tested, starting ... -
Comparing pretreatment methods for improving microalgae anaerobic digestion: Thermal, hydrothermal, microwave and ultrasound
(2015-11-01)
Article
Open AccessThe anaerobic digestion of microalgae is hindered by its complex cell wall structure and composition. Thus, several pretreatment methods have been used for increasing microalgae anaerobic biodegradability. Since the methane ... -
Composició de l'alga Ulva ohnoi: efectes de les condicions de cultiu
(Universitat Politècnica de Catalunya, 2016-10-27)
Bachelor thesis
Open AccessThe cultivation of seaweed has increased markedly in recent years. These seaweed have many applications in which this work we have focused on its use as a biofilter on an integrated multitrophic aquaculture system (IMTA). ... -
Control microbiológico de la macroalga Ulva ohnoi
(Universitat Politècnica de Catalunya, 2017-09-05)
Bachelor thesis
Open AccessIn the last few years the cultivation of seaweed around the world has increased; mainly the macroalgae, that are used for human food. The main reason is the high nutritional value of seaweed (proteins, fiber, vitamins and ... -
Cultivation and selection of cyanobacteria in a closed photobioreactor used for secondary effluent and digestate treatment
(2017-06-01)
Article
Open AccessThe main objective of this study was to select and grow wastewater-borne cyanobacteria in a closed photobioreactor (PBR) inoculated with a mixed consortium of microalgae. The 30 L PBR was fed with a mixture of urban secondary ... -
Culture of the seaweed ulva ohnoi integrated in a Solea senegalensis recirculating system
(2019-02-26)
Article
Restricted access - publisher's policyA growth model was developed to optimize the management of multi-trophic aquaculture systems by analyzing the influence of light and biomass stocking density (SD) in the productivity of Ulva ohnoi fed with the effluents ... -
Development and experimental validation of an overlay mortar with biocide activity
(2016-11)
Article
Open AccessBiodeterioration of concrete by microorganism colonisation may be a problem in several structures, especially in irrigation and hydroelectric canals. The main problem in such structures is the proliferation of algae and ... -
Digestión anaerobia y efecto del pretratamiento con microondas sobre la biomasa algal procedente de lagunas de alta carga
(Universitat Politècnica de Catalunya, 2011-07-15)
Master thesis
Open AccessLas lagunas de alta carga son un sistema de depuración de las aguas residuales basado en la relación simbiótica entre microorganismos que degradan la materia orgánica y microalgas que aportan oxígeno y nutrientes. El ... -
Enhancement of microalgae anaerobic digestion by thermo-alkaline pretreatment with lime (CaO)
(Elsevier, 2017-06)
Article
Restricted access - publisher's policyThe aim of this study was to evaluate for the first time the effect of a thermo-alkaline pretreatment with lime (CaO) on microalgae anaerobic digestion. The pretreatment was carried out by adding different CaO doses (4 and ... -
Harvesting microalgae from wastewater treatment systems with natural flocculants: Effect on biomass settling and biogas production
(2015-05-01)
Article
Open AccessResearch on new sources of bioenergy is nowadays driving attention to microalgae. Cost-effective biomass harvesting and thickening pose a challenge for massive microalgae production for biofuels. In this study, ... -
Impact of low temperature pretreatment on the anaerobic digestion of microalgal biomass
(2013-06)
Article
Restricted access - publisher's policyThe aim of this study was to investigate the effect of low temperature pretreatment on the anaerobic digestion of microalgal biomass grown in wastewater. To this end, microalgae were pretreated at low temperatures (55, 75 ... -
Improving biogas production from microalgae by enzymatic pretreatment
(2016-01)
Article
Open AccessIn this study, enzymatic pretreatment of microalgal biomass was investigated under different conditions and evaluated using biochemical methane potential (BMP) tests. Cellulase, glucohydrolase and an enzyme mix composed ... -
Influence of hydrothermal pretreatment on microalgal biomass anaerobic digestion and bioenergy production
(2015-01-01)
Article
Open AccessMicroalgal biomass grown in wastewater treatment raceway ponds may be valorised producing bioenergy through anaerobic digestion. However, pretreatment techniques seem to be necessary for enhancing microalgae methane yield. ... -
Influence of the agitation method in the growth of Algae tanks (Ulva ohnoi) integrated in a multitrophic aquaculture system (IMTA)
(2017)
Conference lecture
Open AccessIntegrated multitrophic aquaculture is gaining importance between fish producers because it can improve the sustainability of this activity by using fish wastes to grow up algae species of commercial interest, in our case ... -
Influència de les condicions de cultiu en les taxes d'eliminació de N i P de la macroalga Ulva ohnoi
(Universitat Politècnica de Catalunya, 2016-10-26)
Bachelor thesis
Open AccessAquaculture production is increasing about 10% annually. That's why the effluents with nutrients and organic matter increases in recent years and consequently integrated multitrophic aquaculture started gain strength for ... -
Manipulating Ulva-associated bacterial communities: a possible strategy for bacterial control in IMTA-RAS cultures?
(2017)
Article
Restricted access - publisher's policyAs epibiotic communities in macroalgae may be randomly formed by functionally equivalent guild members present in the surrounding seawater, we hypothesize that experimental colonization of Ulva spp. with selected alg ... -
Polymer accumulation in mixed cyanobacterial cultures selected under the feast and famine strategy
(Elsevier, 2018-07-01)
Article
Restricted access - publisher's policyIn this study, a sequencing batch reactor (SBR), operated with transient carbon availability (feast and famine) and different nutrients loads, was used to select cyanobacteria accumulating poly (3-hydroxyalkanoate) (PHB) ... -
Simulació del creixement algal en llacunes d'alta càrrega sota diferents escenaris d'irradiància
(Universitat Politècnica de Catalunya, 2014-06-17)
Bachelor thesis
Open Access -
Sistema de control automático de plataformas de crecimiento de algas en el espacio
(Universitat Politècnica de Catalunya, 2016-04-12)
Bachelor thesis
Restricted access - author's decisionThis final degree work has been done with the aim to study and build a system capable of automatically controlling algae growth platforms. It is a land simulation of an ECLSS "Environmental Control and Life Support System". ...
