Biogas production from anaerobic digestion of <i>Spirulina maxima</i> algal biomass

Samson, Réjean; LeDuy, Anh

doi:10.1002/bit.260240822

Cited by 103 publications

(43 citation statements)

References 10 publications

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“…2 Simplified scheme of the envisaged SunCHem process for the production of methane (and high-value chemicals) using microalgae. PBR Photobioreactor 25-35%), and they require long residence times (days, weeks or even months; Yoshida et al 2003;Samson and Leduy 1982), and hence large reactors for larger scale plants. By contrast, thermochemical conversion (TCC) processes are fast, with residence times on the order of minutes or even seconds, thus resulting in reduced footprint requirements (Cantrell et al 2008).…”

Section: Hydrothermal Gasificationmentioning

confidence: 99%

“…Theoretical and experimental evidence (Kruse 2008;Matsumura et al 2005;Vogel 2009) indicates that the use of relatively low temperatures (350-500°C) for the hydrothermal gasification of biomass favors methane over Samson and Leduy (1982) hydrogen formation. A catalyst is required at these lower temperatures for enhancing the reaction kinetics and achieving high levels of carbon conversion to methane gas.…”

Section: Hydrothermal Gasificationmentioning

confidence: 99%

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SunCHem: an integrated process for the hydrothermal production of methane from microalgae and CO2 mitigation

et al. 2009

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We describe a potential novel process (SunCHem) for the production of bio-methane via hydrothermal gasification of microalgae, envisioned as a closed-loop system, where the nutrients, water, and CO 2 produced are recycled. The influence on the growth of microalgae of nickel, a trace contaminant that might accumulate upon effluent recycling, was investigated. For all microalgae tested, the growth was adversely affected by the nickel present (1, 5, and 10 ppm). At 25 ppm Ni, complete inhibition of cell division occurred. Successful hydrothermal gasification of the microalgae Phaeodactylum tricornutum to a methane-rich gas with high carbon gasification efficiency (68-74%) and C1-C3 hydrocarbon yields of 0.2 g C1-C3 /g DM (DM, dry matter) was demonstrated. The biomass-released sulfur was shown to adversely affect Ru/C catalyst performance. Liquefaction of P. tricornutum at short residence times around 360°C was possible without coke formation.

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Section: Hydrothermal Gasificationmentioning

confidence: 99%

Section: Hydrothermal Gasificationmentioning

confidence: 99%

SunCHem: an integrated process for the hydrothermal production of methane from microalgae and CO2 mitigation

et al. 2009

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“…Within this category, the use of microalgae has attracted the most attention [8], due to its ability to reduce the concentration of inorganic nutrients such as nitrogen and phosphorus [9] [10] [11] and decrease the concentration of dissolved heavy metals such as mercury [12], cadmium and copper [13], lead [14], aluminum [15], and chromium [2]. Likewise, microalgal biomass can be used in the production of biofuels such as biodiesel [16] [17], bioethanol [17] [18], and biogas [19] [20], as well as in the production of different products of industrial and commercial interest [21] [22].…”

Section: Introductionmentioning

confidence: 99%

Using Scenedesmus sp. for the Phycoremediation of Tannery Wastewater

et al. 2016

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Wastewater from the leather tannery industry contains high concentrations of heavy metals, especially chromium, as well as high values of inorganic nutrients and organic matter which, if not treated prior to discharge, may alter the quality of surface water bodies. As an alternative treatment to these industrial effluents, we propose the use of microalgae, due to their ability to remove contaminants. This study evaluates the growth of the microalga Scenedesmus sp. in three different dilutions of wastewater (20%, 50%, and 100%) at a tannery in Bogotá, Colombia, for a period of 15 days. We assess the removal of hexavalent chromium, nutrients (nitrites, nitrates, phosphates and sulfates), and Biochemical Oxygen Dilution (BOD). Results indicate a growth of Scenedesmus proportional to the dilution of the effluent, with greater biomass in undiluted wastewater. This biomass achieved the removal of Cr+6 (>98%), nitrates (>90%) and phosphates (>99%), and BOD (>88%) which can be attributed to a shared microalgae-bacteria effect. Thus, we conclude that the microalgae Scenedesmus sp. Used the waste effluent as a growth substrate, improving its effect during a phycoremediation process.Keywords: Phycoremediation, Scenedesmus, Tanneries, Chromium. ResumenLas aguas residuales de la industria del curtido de pieles (curtiembres) presentan elevadas concentraciones de metales pesados, especialmente de cromo, así como altos valores de nutrientes inorgánicos y materia orgánica, que de no ser tratados previa a su descarga puede alterar la calidad de los cuerpos de agua superficiales. Como un tratamiento alternativo a estos efluentes industriales, se propone el uso de microalgas, debido a su capacidad de remoción de contaminantes. En el presente trabajo se evaluó el crecimiento de la microalga Scenedesmus sp. en tres diluciones diferentes de una agua residual (20%, 50% y 100%) de una Curtiembres del Barrio San Benito de la ciudad de Bogotá, por un periodo de 15 días, valorando la remoción de cromo hexavalente (Cr+6), nutrientes (nitritos, nitratos, fosfatos y sulfatos) y reducción de la demanda bioquímica de oxigeno (DBO). Como resultado se obtuvo un crecimiento de Scenedesmus que proporcional a la dilución del efluente, con mayor obtención de biomasa en el agua residual sin diluir. Esta biomasa redujo la concentración de Cr+6 (>98%) así como los nitratos (>90%) y fosfatos (>99%) los cuales pudieron ser tomados por la microalga para su crecimiento, pero adicionalmente se observó una reducción de nitritos (>98%), sulfatos (>92%) y DBO (>88%) que puede ser atribuible a un efecto compartido microalga-bacteria. De esta forma se puede concluir que la microalga utilizo el efluente residual como un sustrato de crecimiento, mejorando la calidad del mismo en un proceso de ficorremediación.

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“…Higher concentration of those ions can inhibit fermentation process and, in extreme cases, may be toxic to the methanogenic organisms, especially at higher pH values. For example, fermentation of cyanobacteria, Spirulina maxima, which is rich in protein (contains up to 60% of proteins), resulted in release of large amounts of ammonia during hydrolysis (up to 7000 mg L -1 ), resulting in withering anaerobic bacteria away [19,20]. The advantage of biogas produced from microalgae is low hydrogen sulphide content in gaseous product.…”

Section: Alternative Fuels Technical and Environmental Conditions 144mentioning

confidence: 99%

Microorganisms as Direct and Indirect Sources of Alternative Fuels

Matuszewska¹

2016

Alternative Fuels, Technical and Environmental Conditions

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The industrialization and economic growth during the XXth century had been supported by fossil fuels, but it is clear that they are limited and they cannot sustain the growing energy needs. There is urgency in finding renewable and efficient fuels. The solar energy is obviously the solution in long-term but without suitable methods of storage, it is impossible to use it as a primary source of energy. One of the most important form of solar energy capturing is biomass itself, including the cell mass of microorganisms. The potential of microbes in alternative fuels and energy production is still unexploited. There are several possible routes for using a single-celled organisms to harvest energy.

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Biogas production from anaerobic digestion of Spirulina maxima algal biomass

Cited by 103 publications

References 10 publications

SunCHem: an integrated process for the hydrothermal production of methane from microalgae and CO2 mitigation

SunCHem: an integrated process for the hydrothermal production of methane from microalgae and CO2 mitigation

Using Scenedesmus sp. for the Phycoremediation of Tannery Wastewater

Microorganisms as Direct and Indirect Sources of Alternative Fuels

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