A study of photosynthetic biogas upgrading based on a high rate algal pond under alkaline conditions: Influence of the illumination regime

Franco‐Morgado, Mariana; Alcántara, Cynthia; Noyola, A.; Muñoz, Raúl; González-Sánchez, Armando

doi:10.1016/j.scitotenv.2017.03.077

Cited by 67 publications

(27 citation statements)

References 27 publications

(33 reference statements)

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“…Further details about the biogas upgrading process, that is, CO 2 fixation rates, biomass productivity and gas analytics can be found in a recent previous work (Franco‐Morgado et al . ).…”

Section: Methodsmentioning

confidence: 97%

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Microalgae community shifts during the biogas upgrading in an alkaline open photobioreactor

et al. 2017

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The alkaline conditions enhance the CO absorption from biogas and could optimize specialized microalgae communities in the open photobioreactor. Denaturing gradient gel electrophoresis fingerprinting and richness index comparison are useful methods for the evaluation of microalgae community shifts and photosynthetic activity performance, particularly in systems intended for CO removal from biogas where the CO assimilation potential can be related to the microbial richness.

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Section: Methodsmentioning

confidence: 97%

“…The composition of the synthetic biogas was 30% CO 2 , 0Á5% H 2 S, balanced with N 2 . Further details about the biogas upgrading process, that is, CO 2 fixation rates, biomass productivity and gas analytics can be found in a recent previous work (Franco-Morgado et al 2017).…”

Section: Open Photobioreactor For Biogas Upgradingmentioning

confidence: 99%

Microalgae community shifts during the biogas upgrading in an alkaline open photobioreactor

et al. 2017

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“…The methane fermentation in a biogas plant involves biogas production through a process involving four phases (hydrolysis, acidogenesis, acetogenesis and methanogenesis) [5] on the basis of resources with various volume ratios of hydrocarbons, lipids and proteins [6][7]. The composition of such biogas is different depending on the applied substrates, however, typically it consists mostly of CH 4 (40-70%) and CO 2 (15-60 %) as well as other compounds in small amounts: H 2 O (2-7%), N 2 (2-5%), O 2 (0-2%) < 1% H 2 , NH 3 (0-1%) and H 2 S (0.005-2%) [5,[8][9][10][11]). The principal sources of biomass include: agricultural waste, communal solid waste, sewage sludge, forestry waste as well as industrial and animal remains, etc.…”

Section: Introductionmentioning

confidence: 99%

Assessment of application of selected waste for production of biogas

Pawlita-Posmyk

Wzorek

2017

E3S Web Conf.

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Abstract. Recently, the idea of biogas production has become a popular topic in Poland. Biogas is a valuable source of renewable energy with a potential application in electricity and heat production. Numerous types of technological solutions of biogas production are closely linked to the availability of substrates in the area, as well as their quantity and their properties. The paper presents the assessment of application in biogas production selected wastes such as communal and household sewage sludge and waste from a paper production in Opole region (Poland). The annual productions of methane, biogas and electricity were estimated. Chosen physico-chemical properties important in fermentation process were taken into consideration in the assessment. The highest value of potential energy was obtained using waste from the paper industry but the most appropriate parameters for this process has sewage sludge from the municipal sewage treatment plant. The use of sewage sludge from domestic and municipal sewage and waste from the paper industry creates the opportunity to reduce the amount of waste materials.

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“…Activated sludge from Valladolid wastewater treatment plant (Valladolid, Spain) was used to inoculate the BC, while a mixed inoculum containing activated sludge and microalgae (1:1 v/v) was employed for the inoculation of the PBC. The microalgae were obtained from a biogas upgrading high rate algal pond located at the Department of Chemical Engineering and Environmental Technology at the University of Valladolid (Valladolid, Spain) and operating with a total suspended solids (TSS) concentration of 1.62 g L -1 and a volatile suspended solids concentration (VSS) of 1.48 g L -1 (Franco- Morgado et al 2017).…”

Section: Inoculummentioning

confidence: 99%

Trimethylamine abatement in algal-bacterial photobioreactors

Pascual

Akmirza

Pérez

et al. 2020

Environ Sci Pollut Res

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Trimethylamine (TMA) is an odorous volatile organic compound emitted by industries. Algalbased biotechnologies have been proven as a feasible alternative for wastewater treatment, although their application to abate polluted air emissions is still scarce. This work comparatively assessed the removal of TMA in a conventional bacterial bubble column bioreactor (BC) and a novel algal-bacterial bubble column photobioreactor (PBC). The PBC exhibited a superior TMA abatement performance compared to the conventional BC. In this sense, the BC reached a removal efficiency (RE) and an elimination capacity (EC) of 78 % and 12.1 g TMA m -3 h -1 , respectively, while the PBC achieved a RE of 97 % and a EC of 16.0 g TMA m -3 •h -1 at an empty bed residence time (EBRT) of 2 min and a TMA concentration ~500 mg m -3 . The outstanding performance of the PBC allowed to reduce the operating EBRT to 1. 5 and 1 min, while maintaining high REs of 98 and 94 %, and ECs of 21.2 and 28.1 g m -3 •h -1 , respectively. Moreover, the PBC improved the quality of the gas and liquid effluents discharged, showing a net CO2 consumption and decreasing by ~ 30 % the total nitrogen concentration in the liquid effluent via biomass assimilation. A high specialization of the bacterial community was observed in the PBC, Mumia and Aquamicrobium sp. being the mos t abundant genus within the main phyla identified.

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A study of photosynthetic biogas upgrading based on a high rate algal pond under alkaline conditions: Influence of the illumination regime

Abstract: 12Microalgal-bacterial processes have emerged as environmental friendly systems for the

Cited by 67 publications

References 27 publications

Microalgae community shifts during the biogas upgrading in an alkaline open photobioreactor

Microalgae community shifts during the biogas upgrading in an alkaline open photobioreactor

Assessment of application of selected waste for production of biogas

Trimethylamine abatement in algal-bacterial photobioreactors

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