Production of biodiesel and bioethanol using algal biomass harvested from fresh water river

Kumar, Vinod; Nanda, Manisha; Joshi, Harish C.; Singh, Ajay; Sharma, Sonal; Verma, Monu

doi:10.1016/j.renene.2017.10.016

Cited by 93 publications

(29 citation statements)

References 43 publications

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“…16, was associated with the commencement of the ignition, whereby algae and waste cooking oil biodiesel blends had higher pressure rise rate than petroleum diesel. Hariram and Kumar [105] also reported higher peak pressure for fuel blend with 15% algal oil methyl ester and 85% petroleum diesel when compared with 100% petroleum diesel at any load. The Kirloskar DM10 single cylinder direct injection engine was used, with the density and the kinematic viscosity of algae biodiesel to be 0.83 kg/l and 5.76 mm 2 /s respectively.…”

Section: Cylinder Pressurementioning

confidence: 90%

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Algae biofuel: Current status and future applications

Adeniyi

Azimov

Burluka

2018

Renewable and Sustainable Energy Reviews

367

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An algal feedstock or biomass may contain a very high oil fraction, and thus could be used for the production of advanced biofuels via different conversion processes. Its major advantage apart from its large oil fraction is the ability to convert almost all the energy from the feedstock into different varieties of useful products. In the research to displace fossil fuels, algae feedstock has emerged as a suitable candidate not only because of its renewable and sustainable features but also for its economic credibility based on the potential to match up with the global demand for transportation fuels. Cultivating this feedstock is very easy and could be developed with little or even no supervision, with the aid of wastewater not suitable for human consumption while absorbing CO2 from the atmosphere. The overall potential for algae applications generally shows that this feedstock is still an untapped resource, and it could be of huge commercial benefits to the global economy at large because algae exist in millions compared to terrestrial plants. Algae applications are evident for everyday consumption via foods products, non-foods products, fuel, and energy. Biofuels derived from algae have no impact on the environment and the food supply unlike biofuels produced from crops. However, any cultivation method employed could control the operating cost and the technicalities involved, which will also influence the production rate and strain. The scope of this paper is to review the current status of algae as a potential feedstock with diverse benefit for the resolution of the global energy demand, and environmental pollution control of GHG.

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Section: Cylinder Pressurementioning

confidence: 90%

“…An increase in cylinder pressure for all algae biodiesel blends was reported at any load condition, resulting in a better performance than petroleum diesel. This increase was associated with lower cetane number that caused longer ignition delay and improved the premixed combustion [105].…”

Section: Cylinder Pressurementioning

confidence: 99%

Algae biofuel: Current status and future applications

Adeniyi

Azimov

Burluka

2018

Renewable and Sustainable Energy Reviews

367

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“…Currently, efforts have been directed towards the application of other feedstock such as algae as substrates for bioethanol production . Biofuel production from algae is a novel concept that has implications for ecological protection.…”

Section: Introductionmentioning

confidence: 99%

“…5,6 Currently, efforts have been directed towards the application of other feedstock such as algae as substrates for bioethanol production. [7][8][9] Biofuel production from algae is a novel concept that has implications for ecological protection. Algae are capable of using large amounts of carbon dioxide, resulting in the production of biomass.…”

Section: Introductionmentioning

confidence: 99%

Synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates

Shokrkar

Ebrahimi

2018

Biofuels Bioprod Bioref

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This study aimed to evaluate the synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates for bioethanol production. The effect of β‐glucosidase on the hydrolysis of algal cellulose, and the comparison between the effect of the addition of α‐amylase and amyloglucosidase separately or together on the hydrolysis of algal starch, have not been described previously. Results showed that β‐glucosidases promoted the enzymatic hydrolysis of algal cellulose as a result of the increase in the glucose production rate and the decrease in the inhibition by cellobiose. It was also beneficial to carry out the hydrolysis of algal starch using the mixture of α‐amylase and amyloglucosidase. The results obtained revealed that, in enzymatic hydrolysis experiments, simultaneous treatment with Celluclast 1.5 L, β‐glucosidase, α‐amylase, and amyloglucosidase was a promising strategy to reduce the hydrolysis time required to achieve a higher yield of glucose. Subsequently, fermentation of enzymatic hydrolysates of microalgae using Saccharomyces cerevisiae showed a yield of 0.126 g ethanol / g dried algae. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…Microalgae biomass has been increasing attention in recent years as they have high growth rate, high lipid content and CO 2 sequestration ability [1]. However, production of microalgal biomass is still not economically feasible, due to significant amount of energy required during cultivation and harvesting [2]. Microalgae are among the oldest microorganisms on earth that can either be autotrophic or heterotrophic in nature [3].…”

Section: Introductionmentioning

confidence: 99%

Enhancing algal biomass production and nutrients removal from municipal wastewater via a novel mini photocavity bioreactor

2020

Biointerface Res Appl Chem

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This study presents the use of a novel photocavity reactor in order to intensify the growth rate, biomass and lipid productivity in microalgae. The reactor offers an aseptic approach for better control on growth rate in microalgae.The Absorption Factor (AF), Attenuation Factor (AtF), Modified Fluence Rate (MFR) and water factor of the photo reactor were recorded to be 1.581, 0.267, 0.347 mW/cm 2 and 2.072 respectively. The maximum growth rate recorded was 310 mg L −1 inphotocavity reactor. The results clearly indicate that using the stainless steel visible photoreactor can lead to a significant increase in the growth rate (43.3%), productivity of biomass (27-33%) and lipid content (6-8%) in comparison to microalgae cultivated in glass conical flasks (control). COD, total nitrogen, phosphate and bacterial load (colony-forming unit-CFU) were determined in this study. A decrease in COD (180 to 19 mg/l) and CFU (57×10 9 to 5×10 1 ) of wastewater was also recorded in this study.

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Production of biodiesel and bioethanol using algal biomass harvested from fresh water river

Cited by 93 publications

References 43 publications

Algae biofuel: Current status and future applications

Algae biofuel: Current status and future applications

Synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates

Enhancing algal biomass production and nutrients removal from municipal wastewater via a novel mini photocavity bioreactor

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