Substituting microalgal biomass with faecal sludge for high-quality biocrude production through co-liquefaction: A sustainable biorefinery approach

Islam, Md. Bashirul; Khalekuzzaman, Md.; Kabir, Sadib Bin; Hossain, Md. Refat; Alam, Md. Asraful

doi:10.1016/j.fuproc.2021.107063

Cited by 32 publications

(4 citation statements)

References 39 publications

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“…The medium peak at 750–800 cm −1 was related to aromatic compounds in biocrude oils [ 28 ]. Comparably, the similar functional groups including C-O, O-H, C-H, C=O, and N-H were found in other co-HTL studies reported elsewhere [ 3 , 14 ].…”

Section: Resultssupporting

confidence: 83%

“…Thermochemical technologies are effective for valorizing biomass into liquid or gaseous biofuels [ 2 ]. Biomass drying/dewatering is an energy-intensive step while implementing the pyrolysis or transesterification process for biofuel production [ 3 ]. Of these emerging technologies, hydrothermal liquefaction (HTL) is receiving critical attention because it can valorize wet biomass without any pre-drying steps into valuable products (e.g., biocrude oil, hydrochar, and syngas) at temperatures (280–400 °C) and pressures (10–35 MPa) [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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A Comprehensive Hydrothermal Co-Liquefaction of Diverse Biowastes for Energy-Dense Biocrude Production: Synergistic and Antagonistic Effects

Zhang

Wang

Liu

et al. 2022

IJERPH

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Hydrothermal co-liquefaction (co-HTL) is a promising technology to valorize binary or even ternary biowastes into bioenergy. However, the complex biochemical compositions and unclear synergistic effect prevent the development of this technology. Thus, this study explored a comprehensive co-HTL of representative biowastes to investigate the synergistic and antagonistic effects. An apparent synergistic effect on biocrude yield was observed when sewage sludge was co-liquefied with cow manure or wheat straw. Further, the co-HTL of sewage sludge-cow manure was investigated in a detailed manner. The highest yield (21.84 wt%) of biocrude, with a positive synergistic effect (11.37%), the highest energy recovery (47.48%), and a moderate biocrude HHV (34.31 MJ/kg) were achieved from co-HTL at 350 °C for 30 min. Hydrochar and gas products were also characterized to unravel the reaction pathways. Accordingly, this work indicates that sewage sludge co-liquefied with other biowastes can serve as a multi-purpose solution for biowaste treatment and bioenergy production.

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

A Comprehensive Hydrothermal Co-Liquefaction of Diverse Biowastes for Energy-Dense Biocrude Production: Synergistic and Antagonistic Effects

Zhang

Wang

Liu

et al. 2022

IJERPH

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“…Other operating parameters and details of microalgae process was described in the previous study done by Islam et al (2022).…”

Section: Microalgae Cultivationmentioning

confidence: 99%

Harvesting of Microalgal Biomass Using Moringa Oleifera as Natural Coagulant: A Cost-Effective Approach

et al. 2022

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Microalgae has been considered one of the most promising 3rd generation biofuel sources. Nevertheless, the commercialization of this biomass has not been successful in developing countries due to the energy-intensive harvesting process. The aim of the present study is to find a suitable coagulant which is locally available, costeffective, non-toxic, and environmentally friendly. In this regard, Moringa Oleifera (MO) seed powder, locally known as Shojne in Bangladesh, is used as natural coagulant to fulfil the present crisis. However, the harvesting efficiency and coagulant properties of MO were evaluated through jar-test, where wastewater grown microalgae, cultured in a photobioreactor (PBR), was used. This study optimized the harvesting parameters such as coagulant dose, mixing rate, and mixing time. As those parameters have a significant impact on the microalgae harvesting process. Low mixing rate and mixing time have better performance with coagulant dose varied from 10-70 mg/L. The highest harvesting efficiency of 83% microalgae recovery was achieved at 20 rpm for 10 minutes with coagulant dose of 70 mg/L. The MO seeds are recommended to be prospective coagulants for both water treatment and microalgae harvesting. Journal of Engineering Science 13(1), 2022, 51-59

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“…Over years, the discoveries surrounding these green microorganisms formed a glorious path in the biotechnological industry. So, its robust adaptability and metabolic plasticity, beyond its highly flexible capacity for genetic and environmental changes, have reiterated the microalgae, such as gold coins in the global market [2].…”

Section: Introductionmentioning

confidence: 99%

Introductory Chapter: Microalgal Biotechnology - The Gold-Green in Modern Sustainable World

Deprá¹,

Jacob‐Lopes²,

Zepka³

2022

Progress in Microalgae Research - A Path for Shaping Sustainable Futures

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Substituting microalgal biomass with faecal sludge for high-quality biocrude production through co-liquefaction: A sustainable biorefinery approach

Cited by 32 publications

References 39 publications

A Comprehensive Hydrothermal Co-Liquefaction of Diverse Biowastes for Energy-Dense Biocrude Production: Synergistic and Antagonistic Effects

A Comprehensive Hydrothermal Co-Liquefaction of Diverse Biowastes for Energy-Dense Biocrude Production: Synergistic and Antagonistic Effects

Harvesting of Microalgal Biomass Using Moringa Oleifera as Natural Coagulant: A Cost-Effective Approach

Introductory Chapter: Microalgal Biotechnology - The Gold-Green in Modern Sustainable World

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