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Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris

Blanco, Estefany; González-Delgado, Angel Darío; García-Martinez, Janet; Sanchez-Galvis, Edwar; Barajas Solano, andres F (Contemporary Engineering SciencesBulgaria, 2017-12-24)

Microalgae have received increasing attentions as an alternative treatment approach to remediate wastewater for both nutrient removal and biomass production. Wastewater from aquaculture industry contains high levels of ...
The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis

Torres, Luz Karime; González-Delgado, Angel Darío; Barajas Solano, andres F; Urbina-Suarez, Nestor Andres (Contemporary Engineering SciencesBulgaria, 2017-12-24)

Currently, microalgae have emerged as promising source of high-value products due to its biomass productivity, high photosynthetic efficiency and non-competitive environment for growth. In this work, biomass production ...
Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation

Sanguino, Paola Andrea; González-Delgado, Angel Darío; Barajas Solano, andres F (Contemporary Engineering SciencesBulgaria, 2018-04-04)

Recently, microalgal biomass has attached much attention due to the wide diversity of compounds synthesized from different metabolic pathways. This work attempts to study metabolites recovery from Nannochloropsis sp. ...
An integral PEST study of biomass as energy resource

Mendoza Cassere, Daniel; Valencia, Guillermo Eliecer; Cárdenas-Gutiérrez, Javier Alfonso (Contemporary Engineering SciencesBulgaria, 2018-08-18)

The present work was carried out in order to evaluate the world's scientific production with respect to the topic of biomass, based on articles published from 2007 onwards. The data were obtained from the Web of Science ...
Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes

Niño, Lilibeth; Gelves, German; Rivera, Christian (South African Journal of Chemical EngineeringPaíses Bajos, 2017-07)

Phycocyanin is a high-value chromo-protein used in various industries. In this research, a simulation study of kinetics is carried out to identify different light spectra effects on microbial growth and phycocyanin ...

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Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris
...
Blanco, Estefany | 2017-12-24

Microalgae have received increasing attentions as an alternative treatment approach to remediate wastewater for both nutrient removal and biomass production. Wastewater from aquaculture industry contains high levels of nitrogen and phosphorus, which affect plant growth. Conventional methods for treating aquaculture wastewater generally are inefficient and unprofitable. In this work, microalgae Chlorella vulgaris growth was studied in aquaculture effluent medium in order to reduce its contents of NO3 and PO4. Furthermore, the effect of NaHCO3 and Na2CO3 concentrations and addition time on biomass productivity was evaluate to determine the most suitable conditions for biomass growth. It was found that highest biomass content (0.3 g/L) was achieved at 3.4 g/L of sodium bicarbonate concentration and 19 h of addition time.

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The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis
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Torres, Luz Karime | 2017-12-24

Currently, microalgae have emerged as promising source of high-value products due to its biomass productivity, high photosynthetic efficiency and non-competitive environment for growth. In this work, biomass production from Haematococcus pluvialis was studied at three salt concentrations (0, 0.45 and 0.9% v/v) and blue, white and red wavelengths in order to evaluate the effects of these factors on microalgae growth. A 32 experimental design was performed and its results were analyzed by Manova test with 95% of reliability. The results obtained suggest that the best combination for biomass production consists of red wavelength and salt concentration of 0% v/v with a maximum productivity of 8172.2 mg/mL.

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Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation
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Sanguino, Paola Andrea | 2018-04-04

Recently, microalgal biomass has attached much attention due to the wide diversity of compounds synthesized from different metabolic pathways. This work attempts to study metabolites recovery from Nannochloropsis sp. biomass concentrated by centrifugation and flocculation. Carbohydrates were obtained using acid and alkaline hydrolysis required for cell disruption. Protein extraction was performed after alkaline pretreatment and lipids were recovery by acid hydrolysis- Soxhlet and alkaline hydrolysis- Soxhlet extraction routes. It was found that carbohydrates were recovered by acid hydrolysis in 41 % and 35.39 % for centrifuged and flocculated biomass, respectively, values higher than thus reported using alkaline hydrolysis. For protein extraction, centrifuged biomass exhibited higher recovery yield (55.48%) than flocculated biomass (38.40%). The lipid extraction route that achieved highest yield (43.45%) was acid hydrolysis with HCl followed by Soxhlet extraction with hexane. In addition, statistical analysis by T test suggested that flocculants affect negatively biomass culture, hence, efficiency of metabolites extraction.

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An integral PEST study of biomass as energy resource
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Mendoza Cassere, Daniel | 2018-08-18

The present work was carried out in order to evaluate the world's scientific production with respect to the topic of biomass, based on articles published from 2007 onwards. The data were obtained from the Web of Science data collection, and analyzed, through the HitsCite metadata processor, within which indicators were highlighted, such as the number of total publications, the countries that publish the most, in different periods of years, to establish the trend graphically and in the future, to be able to predict the behavior that will occur. The results show that of the 874 articles published to date, 168 were published by the United States, which is equivalent to 19.2%, followed by China, Italy and finally the United Kingdom with 65 articles published (7.4%), 64 articles (7.3%) and 56 articles published (6.4%) respectively. In addition, a PEST analysis was developed to analyses the behavior of the number of publications in relation to the political, economic, social and technological fields for each country studied, in order to be able to create means of prediction in the future.

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Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes
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Niño, Lilibeth | 2017-07

Phycocyanin is a high-value chromo-protein used in various industries. In this research, a simulation study of kinetics is carried out to identify different light spectra effects on microbial growth and phycocyanin production from the cyanobacteria Spirulina platensis. The results are compared with experimental data obtained from previous studies, and an acceptable accuracy is achieved in all the evaluated light spectra. Particular emphasis was placed on determining axial kinetic velocities simulated at different spectra regarding the latency, exponential and stationary microbial growth phases. According to the results obtained, cells grown in exponential phase lighted with red spectrum tend to resist the photo-limitation to a greater degree than cell exposure to white, green and yellow light. The latter is because phycocyanin allows a more excellent wavelength absorption from the red light. Contrarily, the light intensity for all spectra is reduced by around 80% at the inner bioreactor area regarding the intensity reached on the equipment surface during the stationary phase. Also, cell growth and phycocyanin production kinetic rates tend to be close to zero for all spectra, considering more than 50% of the inner bioreactor zone. This finding found in this research may be a key factor for the design of new photobioreactors so that these dark areas could be overcome by installing rotating internal lighting systems to guarantee the photosynthesis process of cyanobacteria in all regions of the bioreactor and thus avoid the phenomenon of photo-limitation due to low light intensities.

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Listar por tema "Biomass"

Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris

The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis

Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation

An integral PEST study of biomass as energy resource

Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes

Envíos recientes

Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris

The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis

Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation

An integral PEST study of biomass as energy resource

Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes

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Listar por tema "Biomass"

Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris ﻿

The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis ﻿

Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation ﻿

An integral PEST study of biomass as energy resource ﻿

Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes ﻿

Envíos recientes

Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris

The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis

Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation

An integral PEST study of biomass as energy resource

Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes

Portales Institucionales

Bioremediation of Aquaculture Wastewater Using Microalgae Chlorella vulgaris

The Effects of Wavelength and Salinity on Biomass Production from Haematococcus pluvialis

Improvement of Biorefinery Efficiency for Microalgae Nannochloropsis sp. via Harvesting Technology Evaluation

An integral PEST study of biomass as energy resource

Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes