Integrated green algal technology for bioremediation and biofuel

Sivakumar, G.; Xu, Jianfeng; Thompson, Robert W.; Yang, Ying; Randol-Smith, Paula; Weathers, Pamela J.

doi:10.1016/j.biortech.2011.12.091

Cited by 134 publications

(42 citation statements)

References 81 publications

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“…Algae photobioreactor technology is a promising tool for meeting the growing demand for biofuels (Sivakumar et al 2012). However, its use in large-scale biofuel production has been limited due to high running costs and energy requirements (Amer et al 2011;Beal et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of lake water on algal biomass and microbial community structure in municipal wastewater-based lab-scale photobioreactors

Krustok

Truu

Odlare

et al. 2015

Appl Microbiol Biotechnol

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Photobioreactors are a novel environmental technology that can produce biofuels with the simultaneous removal of nutrients and pollutants from wastewaters. The aim of this study was to evaluate the effect of lake water inoculation on the production of algal biomass and phylogenetic and functional structure of the algal and bacterial communities in municipal wastewater-treating lab-scale photobioreactors. Inoculating the reactors with lake water had a significant benefit to the overall algal biomass growth and nutrient reduction in the reactors with wastewater and lake water (ratio 70/30 v/v). The metagenome-based survey showed that the most abundant algal phylum in these reactors was Chlorophyta with Scenedesmus being the most prominent genus. The most abundant bacterial phyla were Proteobacteria and Bacteroidetes with most dominant families being Sphingobacteriaceae, Cytophagaceae, Flavobacteriaceae, Comamonadaceae, Planctomycetaceae, Nocardiaceae and Nostocaceae. These photobioreactors were also effective in reducing the overall amount of pathogens in wastewater compared to reactors with wastewater/tap water mixture. Functional analysis of the photobioreactor metagenomes revealed an increase in relative abundance genes related to photosynthesis, synthesis of vitamins important for auxotrophic algae and decrease in virulence and nitrogen metabolism subsystems in lake water reactors. The results of the study indicate that adding lake water to the wastewater-based photobioreactor leads to an altered bacterial community phylogenetic and functional structure that could be linked to higher algal biomass production, as well as to enhanced nutrient and pathogen reduction in these reactors.

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Section: Introductionmentioning

confidence: 99%

Effect of lake water on algal biomass and microbial community structure in municipal wastewater-based lab-scale photobioreactors

Krustok

Truu

Odlare

et al. 2015

Appl Microbiol Biotechnol

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“…benzene and xylene. [25,27] Phanerochaete chrysosporium Biphenyl and triphenylmethane [28] A. niger, A. fumigatus, F. solani and P. funiculosum Hydrocarbon [29] Coprinellus radians PAHs, methylnaphthalenes, and dibenzofurans [30] Alcaligenes odorans, Bacillus subtilis, Corynebacterium propinquum, Pseudomonas aeruginosa phenol [22] Tyromyces palustris, Gloeophyllum trabeum, Trametes versicolor hydrocarbons [31] Candida viswanathii Phenanthrene, benzopyrene [32] cyanobacteria, green algae and diatoms and Bacillus licheniformis naphtalene [33,34] Acinetobacter sp., Pseudomonas sp., Ralstonia sp. and Microbacterium sp, aromatic hydrocarbons [35] Gleophyllum striatum striatum Pyrene, anthracene, 9-metil anthracene, Dibenzothiophene Lignin peroxidasse [36] Acinetobacter sp., Pseudomonas sp., Ralstonia sp.…”

Section: Microorganisms Compound Referencementioning

confidence: 99%

The Role of Microorganisms in Bioremediation- A Review

Abatenh¹,

Gizaw²,

Tsegaye³

et al. 2017

Open J Environ Biol

299

116

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Bioremediation is a biological mechanism of recycling wastes in to another form that can used and reused by other organisms. Nowadays, the world is facing the problem of different environmental pollution. Microorganisms are essential for a key alternative solution to overcome challenges. Microorganisms are survive in all place on the biosphere because of their metabolic activity is astonishing; then come into existence in all over range of environmental conditions. The nutritional capacity of microorganisms is completely varied, so it is used as bioremediation of environmental pollutants. Bioremediation is highly involved in degradation, eradication, immobilization, or detoxifi cation diverse chemical wastes and physical hazardous materials from the surrounding through the all-inclusive and action of microorganisms. The main principle is degrading and transforming pollutants such as hydrocarbons, oil, heavy metal, pesticides, dye's and so on. That is carried out in enzymatic way through metabolizing, so it have grate contribution role to solve many environmental problems There are two types of factors these are biotic and abiotic conditions are determine rate of degradation. Currently, different methods and strategies are applied in the area in different part of the world. For example, biostimulation, bioaugementation, bioventing, biopiles and bioattenuation are common one. All bioremediation techniques it has its own advantage and disadvantage because it has its own specifi c application.

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“…Recent studies [18][19][20] prove that algae have inherent advantageous qualities like rapid biomass formation, high lipid content, tolerance for extreme environments, and thus they have generated significantly increased interest as potential feedstocks for biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Screening and Evaluation of Some Green Algal Strains (Chlorophyceae) Isolated from Freshwater and Soda Lakes for Biofuel Production

et al. 2015

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Microalgae are photosynthetic microorganisms that can produce lipids, proteins and carbohydrates in large amounts and within short periods of time and these can be processed into both biofuels and other useful commercial products. Due to this reason microalgae are considered as a potential source of renewable energy; and one of the most important decisions in obtaining oil from microalgae is the choice of species. In this study, the potential of Chlorophyceae species isolated from freshwater and soda lakes in Hungary and Romania (Central Europe) were characterized and evaluated by determining their biomass accumulation, lipid productivity, fatty acid profiles, and biodiesel properties besides protein and carbohydrate productivity. Out of nine strains tested, three accumulated more than 40% dry weight of protein, four accumulated more than 30% dry weight of carbohydrate and the strain Chlorella vulgaris LC8 accumulated high lipid content (42.1% ± 2.6%) with a favorable C16-C18 fatty acid profile (77.4%) as well as suitable biodiesel properties of high cetane number (57.3), low viscosity (4.7 mm 2 /s), lower iodine number (75.18 g I2/100 g), relative cloud point (8.8 °C) and negative cold filter plugging point (−6.5 °C). Hence the OPEN ACCESSEnergies 2015, 8 7503 new strain, Chlorella vulgaris LC8 has potential as a feedstock for the production of excellent quality biodiesel.

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Integrated green algal technology for bioremediation and biofuel

Cited by 134 publications

References 81 publications

Effect of lake water on algal biomass and microbial community structure in municipal wastewater-based lab-scale photobioreactors

Effect of lake water on algal biomass and microbial community structure in municipal wastewater-based lab-scale photobioreactors

The Role of Microorganisms in Bioremediation- A Review

Screening and Evaluation of Some Green Algal Strains (Chlorophyceae) Isolated from Freshwater and Soda Lakes for Biofuel Production

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