Synergetic pretreatment of algal biomass through H2O2 induced microwave in acidic condition for biohydrogen production

Kumar, Manoj; Kaliappan, S.; Gopikumar, S.; Zhen, Guangyin; Banu, J. Rajesh

doi:10.1016/j.fuel.2019.05.066

Cited by 72 publications

(12 citation statements)

References 27 publications

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“…In the food industry, macroalgae account for $5 billion worldwide on an annual basis, which is 83% – 90% of the total seaweed industry. Many researchers have studied about the usage of macroalgae as a feedstock for biofuel production such as biodiesel [ 21 , 22 ], bioethanol [ 23–25 ], biohydrogen [ 26–28 ], biomethane [ 29–31 ] and bio-oil [ 32 , 33 ]. Most of the results showed a positive review about the production of biofuels from macroalgae.…”

Section: Macroalgae – Feedstock For Biofuel Production Cultivation Methods and Its Environmental Impactmentioning

confidence: 99%

Biofuel production from Macroalgae: present scenario and future scope

Sharmila¹,

Pugazhendi

et al. 2021

Bioengineered

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The current fossil fuel reserves are not sufficient to meet the increasing demand and very soon will become exhausted. Pollution, global warming, and inflated oil prices have led the quest for renewable energy sources. Macroalgae (green, brown, and red marine seaweed) is gaining popularity as a viable and promising renewable source for biofuels production. Numerous researches have been conducted to access the potential of macroalgae for generating diverse bioproducts such as biofuels. The existence of components such as carbohydrates and lipids, and the lack or deficiency of lignin, create macroalgae an enviable feedstock for biofuels generation. This review briefly covers the potential macroalgal species promoting the production of biofuels and their cultivation methods. It also illustrates the biofuel generation pathway and its efficiency along with the recent techniques to accelerate the product yield. In addition, the current analysis focuses on a cost-effective sustainable generation of biofuel along with commercialization and scaleup.

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Section: Macroalgae – Feedstock For Biofuel Production Cultivation Methods and Its Environmental Impactmentioning

confidence: 99%

Biofuel production from Macroalgae: present scenario and future scope

Sharmila¹,

Pugazhendi

et al. 2021

Bioengineered

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“…Then it was put into an erlenmeyer plus 100 mL HCl with various concentrations, namely 0.1 N, 1 N, and 2 N. The hydrolysis process took place with several microwave powers of 150 watts, 300 watts, and 450 watts. The optimum time for the hydrolysis process is 15 minutes [46]. Furthermore, the cooling process in the hydrolyzed solution until it reaches room temperature.…”

Section: Hydrolysis Processmentioning

confidence: 99%

“…The effect of power on the process of hydrolyzing carbohydrates is that the higher the conversion obtained will be higher, but if the power is too high the conversion obtained will decrease [52]. The microwave power used affects the reducing sugar content where there is a significant release of organic matter in the range of 360 watts to 630 watts as research has been conducted by Kumar, et al [46].…”

Section: Analysis Of Variance (Anova)mentioning

confidence: 99%

Microwave Assisted Hydrolysis Ulva sp. Using HCl for the Production of Bioethanol Raw Materials

et al. 2022

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The challenges faced by the Indonesian state are increasing greenhouse gases, climate change, and depleting fossil fuel reserves. This requires the exploration of alternative energy that is environmentally friendly and sustainable. Algae biomass, especially Ulva sp. is one of the resources that have the potential for bioethanol production as an alternative energy producer. The purpose of this study is to determine the potential of Ulva sp. as raw material for bioethanol and to determine the effect of particle size, solvent concentration, and power on the hydrolysis process. This study used Ulva sp. as raw material. hydrolyzed with HCl solvent using the microwave assisted hydrolysis method. Hydrolysis with HCl concentrations of 0.1 N, 1 N, 2 N, variations of microwave power 150 watts, 300 watts, 450 watts, and particle sizes of 60 mesh, 80 mesh, and 100 mesh. Measurement of reducing sugar levels was carried out using the dinitro salicylic acid (DNS) method. The results showed that the best conditions for hydrolysis were when the HCl concentration was 0.1 N, the microwave power was 450 watts, and the particle size was 80 mesh which resulted in a reducing sugar content of 20.751 mg/mL.

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“…The experiments were conducted in triplicate. The macroalgae treated sample, inoculum and nutrients were filled as 70, 25, and 5% in each reactor bottle in fermentation conditions (Kumar et al, 2019). The digested sludge was collected from an anaerobic digester in a wastewater treatment plant and was used as inoculum in this experiment.…”

Section: Biohydrogen Production Assay (Bhp)mentioning

confidence: 99%

“…Athermal effects occur due to the microwave force dipoles that support the oscillating electric field, which results in the distraction of H 2 bonds. This rift in H 2 bonds could result in the devastation of cell walls as well as disintegration, thereby enhancing hydrolysis (Kumar et al, 2019). Other effects such as dielectric effects, magnetic field coupling, and electroporation are responsible for degrading the biomass through microwave.…”

Section: Impact Of MD In Soluble Organic Releasementioning

confidence: 99%

Biohydrogen Generation From Macroalgal Biomass, Chaetomorpha antennina Through Surfactant Aided Microwave Disintegration

et al. 2019

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This present work intends to improve on the possibility of enhancing solubilization and biohydrogen (H 2) production from Chaetomorpha antennina (marine macroalgae) through surfactants (ammonium dodecyl sulfate-ADS) aided with microwave disintegration pretreatment (SMD). Microwave disintegration (MD) was implemented by varying power intensity from 10 to 70% for the time period of 0 to 30 min. In microwave disintegration (MD), maximum soluble organic release of 1,260 mg/L and solubilization of 14.6% were achieved within 15 min. Through surfactants, soluble organic release improves up to 1,490 mg/L at the optimum MD power condition of 40%. High solubilization of 17.3% was achieved at dosage of 0.0035 g/g TS. Higher H 2 generation of 74.5 ml/g COD was obtained in the SMD method. SMD pretreatment therefore reduces pretreatment time and increases the organic release compared to MD.

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Synergetic pretreatment of algal biomass through H2O2 induced microwave in acidic condition for biohydrogen production

Cited by 72 publications

References 27 publications

Biofuel production from Macroalgae: present scenario and future scope

Biofuel production from Macroalgae: present scenario and future scope

Microwave Assisted Hydrolysis Ulva sp. Using HCl for the Production of Bioethanol Raw Materials

Biohydrogen Generation From Macroalgal Biomass, Chaetomorpha antennina Through Surfactant Aided Microwave Disintegration

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