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Journal articles on the topic 'Mixed Algal Consortia'

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1

Krustok, I., J. G. Diaz, M. Odlare, and E. Nehrenheim. "Algae biomass cultivation in nitrogen rich biogas digestate." Water Science and Technology 72, no. 10 (2015): 1723–29. http://dx.doi.org/10.2166/wst.2015.384.

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Because microalgae are known for quick biomass growth and nutrient uptake, there has been much interest in their use in research on wastewater treatment methods. While many studies have concentrated on the algal treatment of wastewaters with low to medium ammonium concentrations, there are several liquid waste streams with high ammonium concentrations that microalgae could potentially treat. The aim of this paper was to test ammonium tolerance of the indigenous algae community of Lake Mälaren and to use this mixed consortia of algae to remove nutrients from biogas digestate. Algae from Lake Mä
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2

Kumar, Gopalakrishnan, Periyasamy Sivagurunathan, Parthiban Anburajan, et al. "Continuous biogenic hydrogen production from dilute acid pretreated algal hydrolysate using hybrid immobilized mixed consortia." International Journal of Hydrogen Energy 43, no. 25 (2018): 11452–59. http://dx.doi.org/10.1016/j.ijhydene.2017.06.050.

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3

González, C., J. Marciniak, S. Villaverde, C. León, P. A. García, and R. Muñoz. "Efficient nutrient removal from swine manure in a tubular biofilm photo-bioreactor using algae-bacteria consortia." Water Science and Technology 58, no. 1 (2008): 95–102. http://dx.doi.org/10.2166/wst.2008.655.

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Concentrated animals feeding operations (CAFOs) often pose a negative environmental impact due to the uncontrolled spreading of manure into soils that ends up in the release of organic matter and nutrients into water bodies. Conventional aerobic methods treating CAFOs wastewater require intensive oxygenation, which significantly increases the operational costs. The alternative proposed in this research is the application of micro-algae based systems by taking advantage of the cost-effective in situ oxygenation via photosynthesis. A 4.9 L enclosed tubular biofilm photo-bioreactor was inoculated
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4

Kabaivanova, Lyudmila, Venelin Hubenov, Neven Dimitrov, and Penka Petrova. "Anaerobic Two-Phase Co-Digestion for Renewable Energy Production: Estimating the Effect of Substrate Pretreatment, Hydraulic Retention Time and Participating Microbial Consortia." Applied Sciences 14, no. 12 (2024): 5311. http://dx.doi.org/10.3390/app14125311.

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Green and sustainable economies have recently become a key issue in long-term growth and well-being. Co-digestion of various waste materials in an eco-friendly way through biogas production has become the preferred method for their utilization and valorization. The possibility of hydrogen and methane yield maximization depends on the most suitable alkali reagent for pretreatment of waste lignocellulosic material, which was revealed in batch tests to determine the hydrogen production potential. The mixture for digestion consisted of pretreated wheat straw mixed with waste algal biomass in a rat
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5

Setiabudi, Gede Iwan, Dietriech G. Bengen, Ocky Karna Radjasa, and Hefni Effendi. "Preliminary study of algasidal activities of the episymbiont bacterial consortium from Enhalus acoroides." Advances in Tropical Biodiversity and Environmental Sciences 2, no. 2 (2018): 21. http://dx.doi.org/10.24843/atbes.2018.v02.i02.p02.

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Seagrass symbiotic bacteria have various functions, one of which is as algaside. There are 2 types of symbionts namely endosymbiont and episymbiont. This study aims to test the initial activity of algaside episymbiont Enhalus acoroides on diatome and dinoflagellate group plankton. The method used for testing is Mixed Algal-bacterial cultures. On media that has been overgrown with algae will be inoculated with episymbiont bacterial consortium E. acoroides. The results of the bacterial consortium research have not shown significant algaside activity. But, on Nitschia sp. showed significant algas
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6

Behera, B., K. Nageshwari, M. Darshini, and P. Balasubramanian. "Evaluating the harvesting efficiency of inorganic coagulants on native microalgal consortium enriched with human urine." Water Science and Technology 82, no. 6 (2020): 1217–26. http://dx.doi.org/10.2166/wst.2020.143.

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Abstract Flocculation is a common technique to harvest microalgae, where the negatively charged algal cells coalesce together to form larger flocs that settle under gravity. Although several inorganic flocculants have been applied for algal biomass recovery, the dosage varies depending on the algal strain-specific features. Thus, the selection of inorganic coagulant that can be applied at a low dosage for achieving the maximal biomass recovery under normal physiological conditions is necessary. The present study analyses the influence of different inorganic flocculants like ferric chloride (Fe
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7

Barott, Katie L., Beltran Rodriguez-Mueller, Merry Youle, et al. "Microbial to reef scale interactions between the reef-building coral Montastraea annularis and benthic algae." Proceedings of the Royal Society B: Biological Sciences 279, no. 1733 (2011): 1655–64. http://dx.doi.org/10.1098/rspb.2011.2155.

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Competition between reef-building corals and benthic algae is of key importance for reef dynamics. These interactions occur on many spatial scales, ranging from chemical to regional. Using microprobes, 16S rDNA pyrosequencing and underwater surveys, we examined the interactions between the reef-building coral Montastraea annularis and four types of benthic algae. The macroalgae Dictyota bartayresiana and Halimeda opuntia , as well as a mixed consortium of turf algae, caused hypoxia on the adjacent coral tissue. Turf algae were also associated with major shifts in the bacterial communities at t
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8

Ryan, Jonathon, Hayden Ferral-Smith, and Joshua Wilson. "Wastewater and Mixed Microbial Consortia: a metastudy analysis of Optimal Microbial Fuel Cell configuration." PAM Review Energy Science & Technology 5 (May 31, 2018): 22–36. http://dx.doi.org/10.5130/pamr.v5i0.1496.

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Microbial Fuel Cells (MFCs) are an area of increasing research for use as an alternative energy source, due to their ability to produce electricity while simultaneously treating organic waste. This meta-study determines the optimal MFC configuration for electricity production, through consideration of the biocatalyst and substrate used. This study focuses primarily on comparing the use of mixed microbial consortia to pure strains of biocatalyst, and the use of waste water in contrast to simple substrates such as; acetate, glucose, and lactate. The use of algae as a substrate, and as a biocatal
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9

Fradinho, J. C., J. M. B. Domingos, G. Carvalho, A. Oehmen, and M. A. M. Reis. "Polyhydroxyalkanoates production by a mixed photosynthetic consortium of bacteria and algae." Bioresource Technology 132 (March 2013): 146–53. http://dx.doi.org/10.1016/j.biortech.2013.01.050.

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10

van der Steen, Peter, Kuntarini Rahsilawati, Angélica M. Rada-Ariza, Carlos M. Lopez-Vazquez, and Piet N. L. Lens. "A new photo-activated sludge system for nitrification by an algal-bacterial consortium in a photo-bioreactor with biomass recycle." Water Science and Technology 72, no. 3 (2015): 443–50. http://dx.doi.org/10.2166/wst.2015.205.

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Wastewater treatment technologies requiring large areas may be less feasible in urbanizing regions of developing countries. Therefore, a new technology, named photo-activated sludge (PAS), was investigated to combine the advantages of regular activated sludge systems with those of algae ponds for the removal of ammonium. The PAS consisted of a mixed photo-bioreactor, continuously fed with BG-11 medium, adjusted to 66 mgN-NH4+/l. The reactor volume was 2 l, hydraulic retention time was 24 hours, with a depth of 8 cm, and continuous illumination at the water surface was 66 μmol PAR/m2/s (photosy
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11

Sniffen, Kaitlyn D., Christopher M. Sales, and Mira S. Olson. "Nitrogen removal from raw landfill leachate by an algae–bacteria consortium." Water Science and Technology 73, no. 3 (2015): 479–85. http://dx.doi.org/10.2166/wst.2015.499.

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A remediation system for the removal of nitrogen from landfill leachate by a mixed algae–bacteria culture was investigated. This system was designed to treat leachate with minimal inputs and maintenance requirements, and was operated as an open semi-batch reactor in an urban greenhouse. The results of this study showed a maximum nitrogen removal rate of 9.18 mg N/(L·day) and maximum biomass density of 480 mg biomass/L. The ammonia removal rates of this culture increased with increasing initial ammonia concentration; maximum nitrogen removal occurred at an ammonia concentration of 80 mg N-NH3/L
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12

Oxtoby, L. E., J. T. Mathis, L. W. Juranek, and M. J. Wooller. "Technical Note: Constraining stable carbon isotope values of microphytobenthos (C<sub>3</sub> photosynthesis) in the Arctic for application to food web studies." Biogeosciences Discussions 10, no. 11 (2013): 18151–74. http://dx.doi.org/10.5194/bgd-10-18151-2013.

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Abstract. Microphytobenthos (MPB) tends to be omitted as a possible carbon source to higher trophic level consumers in high latitude marine food web models that use stable isotopes. Here, we used previously published relationships relating the concentration of aqueous carbon dioxide ([CO2]aq), the stable carbon isotopic composition of dissolved inorganic carbon (DIC) (δ13CDIC), and algal growth rates (μ) to estimate the stable carbon isotope composition of MPB-derived total organic carbon (TOC) (δ13Cp) and fatty acid (FA) biomarkers (δ13CFA). We measured [CO2]aq and δ13CDIC values from bottom
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13

Chaurasia, Preeti. "A Sustainable Approach in Bioremediation of Textile Dye Effluent by Microbial Consortia." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (2022): 868–76. http://dx.doi.org/10.22214/ijraset.2022.39950.

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Abstract: The humongous load on the environment due to the expulsion of textile dye wastewater has always been a major issue. Significantly, the dye is present in the wastewater due to its complex chemical structure, making it a recalcitrant pollutant. Therefore, becoming highly noxious to flora and fauna of the aquatic ecosystems and crop plants. Due to the low biodegradability, dyes are carcinogenic and mutagenic to plants and human beings. Various physicochemical strategies to treat textile effluent have been used, but because of several drawbacks, they are not implemented by most industrie
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14

Sun, Jian, Ping Yang, Nan Li, et al. "Extraction of photosynthetic electron from mixed photosynthetic consortium of bacteria and algae towards sustainable bioelectrical energy harvesting." Electrochimica Acta 336 (March 2020): 135710. http://dx.doi.org/10.1016/j.electacta.2020.135710.

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15

Doloman, Anna, Yehor Pererva, Michael H. Cortez, Ronald C. Sims, and Charles D. Miller. "Augmentation of Granular Anaerobic Sludge with Algalytic Bacteria Enhances Methane Production from Microalgal Biomass." Fermentation 5, no. 4 (2019): 88. http://dx.doi.org/10.3390/fermentation5040088.

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The efficiency of anaerobic digestion relies upon activity of the inoculum converting organic substrate into biogas. Often, metabolic capacity of the inoculum needs to be augmented with new capabilities to accommodate changes in the substrate feed composition. However, bioaugmentation is not a widely used strategy possibly due to the lack of studies demonstrating successful applications. This study describes the bioaugmentation of granular anaerobic sludge digesting mixed algal biomass in batch-scale reactors. The addition of an algalytic bacterial mixture to the granular consortium increased
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16

Samadhiya, Kanchan, Rimjhim Sangtani, Regina Nogueira, and Kiran Bala. "Insightful Advancement and Opportunities for Microbial Bioplastic Production." Frontiers in Microbiology 12 (January 4, 2022). http://dx.doi.org/10.3389/fmicb.2021.674864.

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Impetuous urbanization and population growth are driving increased demand for plastics to formulate impeccable industrial and biomedical commodities. The everlasting nature and excruciating waste management of petroleum-based plastics have catered to numerous challenges for the environment. However, just implementing various end-of-life management techniques for assimilation and recycling plastics is not a comprehensive remedy; instead, the extensive reliance on finite resources needs to be reduced for sustainable production and plastic product utilization. Microorganisms, such as bacteria and
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17

Romero-Frasca, E., and G. Buitrón. "Assessment of polyhydroxyalkanoates and polysaccharides production in native phototrophic consortia under nitrogen and phosphorous-starved conditions." International Journal of Environmental Science and Technology, December 21, 2023. http://dx.doi.org/10.1007/s13762-023-05332-7.

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AbstractGrowing demand for sustainable and eco-friendly alternatives to petroleum-based polymers has increased the interest in the microalgae-based production of polymers, specifically polyhydroxyalkanoates and polysaccharides. While most studies in microbial polymer production have primarily focused on axenic or genetically engineered cultures of cyanobacteria and eukaryotic algae, little is known about the potential of mixed phototrophic consortia. This study aimed to obtain and evaluate mixed photosynthetic consortia of different origins (natural and residual) as a novel approach for polyhy
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18

Schaedig, Eric, Michael Cantrell, Chris Urban, et al. "Isolation of phosphorus-hyperaccumulating microalgae from revolving algal biofilm (RAB) wastewater treatment systems." Frontiers in Microbiology 14 (July 17, 2023). http://dx.doi.org/10.3389/fmicb.2023.1219318.

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Excess phosphorus (P) in wastewater effluent poses a serious threat to aquatic ecosystems and can spur harmful algal blooms. Revolving algal biofilm (RAB) systems are an emerging technology to recover P from wastewater before discharge into aquatic ecosystems. In RAB systems, a community of microalgae take up and store wastewater P as polyphosphate as they grow in a partially submerged revolving biofilm, which may then be harvested and dried for use as fertilizer in lieu of mined phosphate rock. In this work, we isolated and characterized a total of 101 microalgae strains from active RAB syste
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19

Militão, Frederico Pacheco, Valéria de Oliveira Fernandes, Kathiani Victor Bastos, Aline Paternostro Martins, Pio Colepicolo, and Levi Pompermayer Machado. "Nutritional value changes in response to temperature, microalgae mono and mixed cultures." Acta Limnologica Brasiliensia 31 (2019). http://dx.doi.org/10.1590/s2179-975x7118.

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Abstract Aim The response of mixed cultures and monocultures of Pseudopediastrum boryanum (Turpin) E. Hegewald and Scenedesmus obliquus (Turpin) Kützing was assessed in the laboratory at three different temperatures: 20, 30 and 40 °C. The change in biomass and biochemical composition of these cultures was evaluated. Methods Microalgae were placed in a batch culture over 21-days in ASM1 medium. Cell density was directly counted every two days using a Fuchs-Rosenthal hemocytometer. Chlorophyll ‘a’ and total carotenoids were extracted twice. Protein, carbohydrate, total lipid and fatty acid conte
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