Hydrothermal conversion of black liquor to phenolics and hydrochar: Characterization, application and comparison with lignin

Zhao, Yan; Tian, Yuxin; Zhou, Haifeng

doi:10.1016/j.fuel.2020.118651

Cited by 34 publications

(15 citation statements)

References 46 publications

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“…All three lignins represented characteristic peaks of syringyl at around 1330, 1114, and 830 cm -1 , and guaiacyl at 1270 and 1150 cm -1 (Zhao et al 2020b). The intensity of the syringyl ring breathing with C-O stretching at 1330 cm -1 was highest for BLN (Dai et al 2017).…”

Section: Ftirmentioning

confidence: 94%

“…During the biorefining process, different lignin by-products are produced, such as enzymolysis lignin and lignins in pretreatment spent liquor. However, most of the industrial lignins are directly burned or wantonly discharged (Zhao et al 2020b). After appropriate modification, industrial lignin can be used as adsorbent (Zhou et al 2020), dispersant (Zhou et al 2015), water reducing agent (Zhou et al 2016a), and rubber reinforcing agent (Gregorová et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Industrial lignins: the potential for efficient removal of Cr(VI) from wastewater

Zhang

Zhou

2021

Environ Sci Pollut Res

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Cr(VI), a serious threat to human health, widely exists in the effluents of various industrial processes.. In this paper, the potential of industrial lignin for efficient removal of Cr(VI) from wastewater were systematacially investigated, including pulping black liquor lignin (BLN), enzymolysis lignin (ELN), and SPORL pretreatment spent liquor (FS). The structure characterizations of three lignins were investigated by TG, FTIR, BET, SEM, and XPS. Among these three lignins, BLN showed the highest adsorption amount of Cr(VI) and best selectivity in wastewater simulation. According to the Langmuir model, the calculated maximum adsorption amount of Cr(VI) on ELN, BLN, and FS was 765.60, 880.57, and 721.58 mg g -1 , respectively. The adsorption of Cr(VI) by industrial lignins was a chemisorption process, during which Cr(VI) was reduced to low toxic Cr(III). This paper provided a promising application for the effective utilization of industrial lignins.

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Section: Ftirmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Industrial lignins: the potential for efficient removal of Cr(VI) from wastewater

Zhang

Zhou

2021

Environ Sci Pollut Res

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Section: Ftirmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Industrial lignins: the potential for efficient removal of Cr(VI) from wastewater

Zhang

Zhou

2021

Preprint

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Cr(VI), a serious threat to human health, widely exists in the effluents of various industrial processes.. In this paper, the potential of industrial lignin for efficient removal of Cr(VI) from wastewater were systematacially investigated, including pulping black liquor lignin (BLN), enzymolysis lignin (ELN), and SPORL pretreatment spent liquor (FS). The structure characterizations of three lignins were investigated by TG, FTIR, BET, SEM, and XPS. Among these three lignins, BLN showed the highest adsorption amount of Cr(VI) and best selectivity in wastewater simulation. According to the Langmuir model, the calculated maximum adsorption amount of Cr(VI) on ELN, BLN, and FS was 765.60, 880.57, and 721.58 mg g− 1, respectively. The adsorption of Cr(VI) by industrial lignins was a chemisorption process, during which Cr(VI) was reduced to low toxic Cr(III). This paper provided a promising application for the effective utilization of industrial lignins.

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“…Biomass is widely available and renewable, and has typical multiantibacterial structures, such as phenols and ketones (9).…”

mentioning

confidence: 99%

Biosafety of human environments can be supported by effective use of renewable biomass

Zhao

Qin

et al. 2022

Proc. Natl. Acad. Sci. U.S.A.

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Preventing pathogenic viral and bacterial transmission in the human environment is critical, especially in potential outbreaks that may be caused by the release of ancient bacteria currently trapped in the permafrost. Existing commercial disinfectants present issues such as a high carbon footprint. This study proposes a sustainable alternative, a bioliquid derived from biomass prepared by hydrothermal liquefaction. Results indicate a high inactivation rate of pathogenic virus and bacteria by the as-prepared bioliquid, such as up to 99.99% for H1N1, H5N1, H7N9 influenza A virus, and Bacillus subtilis var. niger spores and 99.49% for Bacillus anthracis. Inactivation of Escherichia coli and Staphylococcus epidermidis confirmed that low-molecular-weight and low-polarity compounds in bioliquid are potential antibacterial components. High temperatures promoted the production of antibacterial substances via depolymerization and dehydration reactions. Moreover, bioliquid was innoxious as confirmed by the rabbit skin test, and the cost per kilogram of the bioliquid was $0.04427, which is notably lower than that of commercial disinfectants. This study demonstrates the potential of biomass to support our biosafety with greater environmental sustainability.

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Hydrothermal conversion of black liquor to phenolics and hydrochar: Characterization, application and comparison with lignin

Cited by 34 publications

References 46 publications

Industrial lignins: the potential for efficient removal of Cr(VI) from wastewater

Industrial lignins: the potential for efficient removal of Cr(VI) from wastewater

Industrial lignins: the potential for efficient removal of Cr(VI) from wastewater

Biosafety of human environments can be supported by effective use of renewable biomass

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