Effect of compound additive on microwave-assisted pyrolysis characteristics and products of Chlorella vulgaris

Chen, Chunxiang; Qi, Qianhao; Zeng, Tianyang; Fan, Dianzhao; Zhao, Jian; Qiu, Hongfu; Huang, Haozhong

doi:10.1016/j.joei.2021.06.019

Cited by 19 publications

(2 citation statements)

References 52 publications

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“…From an industrial point of view, biochar having maximal removal efficiency at lower dosage is preferred to higher dosage as it has the potential to be utilized on large scale. Similarly, Manzar et al reported the effect of adsorbent dosage on the adsorptive removal of congo red and EBT dye from aqueous solution using green coffee residue as adsorbent and achieved maximum removal efficiency at an adsorbent dosage of 40 mg [32].…”

Section: Effect Of Biochar Dosage On Ebt Dye Removalmentioning

confidence: 97%

“…The elemental composition of the Chlorella vulgaris microalgae was determined to be Carbon (48.3 %), Hydrogen (5.8 %), Nitrogen (5.4 %), Sulphur (0.8 %) and Oxygen (39.7 %) with a calorific value of 17.52 MJ/kg. In literature, the elemental composition of Chlorella vulgaris microalgae was found to be Carbon (47.62 %), Hydrogen (6.99 %), Nitrogen (11.56 %), Sulphur (0.71 %) and Oxygen (24.84 %) with a low calorific value of 21.55 MJ/kg [32]. The produced algal biomass was converted into biochar through hydrothermal carbonization.…”

Section: Biomass and Biochar Characterizationmentioning

confidence: 99%

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Batch and Column Studies on Removal of Eriochrome Black T Dye by Microalgae Biochar

2022

Global NEST: The International Journal

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<p>In this study, Chlorella vulgaris microalgae was cultivated from wastewater and converted into biochar through hydrothermal carbonization process. Acclimatization of microalgae resulted in a greater biomass yield of 4.1 g/L in 15 days in a Fog's medium to wastewater ratio of 20:80. Microalgae biomass was converted into biochar through hydrothermal carbonization process at temperature of 350 °C. The batch adsorption studies for the removal of Eriochrome Black T dye (EBT) from aqueous solution was performed by modifying various parameters. At an initial dye concentration of 100 ppm, a contact time of 60 min, a temperature of 30 °C, a biochar dosage of 0.3 g, and a pH of 7, the best dye removal efficiency was 82.31%. The investigation of the adsorption isotherm and kinetics revealed that the adsorption process followed pseudo-second order kinetics with the Langmuir isotherm model. In addition, the column adsorption investigations were carried out by varying the beads and bed height. Encapsulated beads outperformed control and hybrid beads in terms of removal efficiency. Column parameters such as initial metal ion concentration, bed height, and flow rate were optimised using the BDST model.</p>

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Section: Effect Of Biochar Dosage On Ebt Dye Removalmentioning

confidence: 97%

Section: Biomass and Biochar Characterizationmentioning

confidence: 99%

Batch and Column Studies on Removal of Eriochrome Black T Dye by Microalgae Biochar

2022

Global NEST: The International Journal

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Biomass valorization via pyrolysis in microalgae-based wastewater treatment: Challenges and opportunities for a circular bioeconomy

de Morais,

da Silveira,

Schüler

et al. 2023

J Appl Phycol

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Microalgae-based wastewater treatment technology is a sustainable and environmentally friendly alternative to conventional treatment systems. The biomass produced during microalgae-based wastewater treatment can be valorized via pyrolysis to generate multiple valuable products, such as biochar, bio-oil, and pyrolytic gas. This study summarizes the potential of pyrolysis for valorizing microalgal biomass produced from wastewater treatment. It shows how pyrolysis can provide a variety of valuable products, the composition of which is influenced by the type of microalgae used, the operating conditions of the pyrolysis process, and the presence of contaminants in the biomass. It also highlights the main challenges to be addressed before pyrolysis can be adopted to valorize microalgae biomass. These challenges include the high energy requirements of pyrolysis, the need for further research to optimize the process, and the potential for pyrolysis to produce harmful emissions. Despite this, pyrolysis appears as a promising technology with potential to contribute to the sustainable development of a circular economy. Future research should address these challenges and develop more efficient and environmentally friendly pyrolysis processes. Graphical abstract

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Catalytic microwave pyrolysis of mushroom spent compost (MSC) biomass for bio-oil production and its life cycle assessment (LCA)

Shahnouri

Taghizadeh-Alisaraei²,

Abbaszadeh-Mayvan³

et al. 2022

Biomass Conv. Bioref.

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Effect of compound additive on microwave-assisted pyrolysis characteristics and products of Chlorella vulgaris

Cited by 19 publications

References 52 publications

Batch and Column Studies on Removal of Eriochrome Black T Dye by Microalgae Biochar

Batch and Column Studies on Removal of Eriochrome Black T Dye by Microalgae Biochar

Biomass valorization via pyrolysis in microalgae-based wastewater treatment: Challenges and opportunities for a circular bioeconomy

Catalytic microwave pyrolysis of mushroom spent compost (MSC) biomass for bio-oil production and its life cycle assessment (LCA)

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