Biocrude production and heavy metal migration during hydrothermal liquefaction of swine manure

Lu, Jianwen; Watson, Jamison; Zeng, Jianli; Li, Hugang; Zhu, Zongmin; Wang, Meng; Zhang, Yuanhui; Liu, Zhidan

doi:10.1016/j.psep.2017.11.001

Cited by 80 publications

(34 citation statements)

References 48 publications

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“…The pH in this study increased with temperature due to the increasing amount of ammonia at a higher temperature through deamination, which was also found in a previous study [29]. Though the salt and metals (Na and K) in the aqueous phase were not tested, the majority of the salt containing Na and K was found to be transferred into aqueous phase in Lu's study [30].…”

Section: Resultssupporting

confidence: 80%

Hydrothermal conversion of anaerobic wastewater fed microalgae: effects of reaction temperature on products distribution and biocrude properties

Liu

Wang

et al. 2019

IET Renewable Power Generation

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Microalgae using non-arable land were considered as promising biomass for biocrude production through hydrothermal liquefaction (HTL) and can also be used for environmentally-friendly wastewater treatment. In this study, we illuminated the effect of reaction temperature on the products distribution and biocrude properties from HTL of the Chlorella sp. grown in wastewater from anaerobic digestion (AD) of chicken manure via HTL. The highest biocrude yield (30.35%, daf) and energy recovery rate (49.6%) were both achieved at 330 °C, while the highest HHV (37.17 MJ/kg) of biocrude oil was achieved at 290 °C. The biocrude oil yield increased from 25.46 to 30.35% as the temperature increased from 270 to 330 °C. The gases yield showed a similar trend under 310 °C. On the contrary, the solid products yield decreased as the temperature approached 350 °C. The lowest nitrogen content (4.6%) and highest H/C (1.50) of biocrude oil were obtained at 290 and 270 °C, respectively. Results imply that deoxygenation was enhanced with temperature due to the enhanced decarboxylation at higher temperatures. Specially, the nitrogen content decreased by 39.4-47.4% in the temperature range of 270-350 °C. The integrated pathways for energy production and nutrient recycling from animal manure coupling AD/HTL, and algae technologies were further proposed.

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Section: Resultssupporting

confidence: 80%

Hydrothermal conversion of anaerobic wastewater fed microalgae: effects of reaction temperature on products distribution and biocrude properties

Liu

Wang

et al. 2019

IET Renewable Power Generation

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“…Importantly, the heavy metals targeted were largely retained in the solid residue on liquefaction, offering a potential route to easy metal recovery and bioenergy production. This deposition of metals has also been observed in the liquefaction of swine manure, 26 and naturally occuring algal blooms. 27 However, in the preliminary study, the active microalgal culture did not grow effectively within the toxic environment generated by the excessive metal contamination, and took a number of weeks to remediate the industrial effluent, emphasising the limitations of the active bioadsorption approach.…”

Section: Introductionmentioning

confidence: 54%

A synergistic use of microalgae and macroalgae for heavy metal bioremediation and bioenergy production through hydrothermal liquefaction

Piccini

Raikova

Allen

et al. 2019

Sustainable Energy Fuels

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“…For example, "rice straw", a cellulose-rich material, can be used in fatty acids extraction; one article describes an engineering experiment that successfully extracted fatty acids from a type of micro bacteria grown rice straw substrate for biofuel production in a similar manner to algae oil/microbial oil [41]. Another example is that different types of manure can be turned into biodiesel, pyrolysis oil, acetone, and methyl esters [42][43][44][45] For more details on co-occurrence validation, see Supplementary Materials Appendix C.…”

Section: Appeared Terms In the Co-occurrences Co-occurrence Validation And Unexpected Connectionsmentioning

confidence: 99%

Can Multiple Uses of Biomass Limit the Feedstock Availability for Future Biogas Production? An Overview of Biogas Feedstocks and Their Alternative Uses

Hoang

Moll²,

Davis

et al. 2020

Energies

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Biogas is expected to contribute 10% of the total renewable energy use in Europe in 2030. This expectation largely depends on the use of several biomass byproducts and wastes as feedstocks. However, the current development of a biobased economy requires biomass sources for multiple purposes. If alternative applications also use biogas feedstocks, it becomes doubtful whether they will be available for biogas production. To explore this issue, this paper aims to provide an overview of potential alternative uses of different biogas feedstocks being researched in literature. We conducted a literature review using the machine learning technique “co-occurrence analysis of terms”. This technique reads thousands of abstracts from literature and records when pairs of biogas feedstock-application are co-mentioned. These pairs are assumed to represent the use of a feedstock for an application. We reviewed 109 biogas feedstocks and 217 biomass applications, revealing 1053 connections between them in nearly 55,000 scientific articles. Our results provide two insights. First, a large share of the biomass streams presently considered in the biogas estimates have many alternative uses, which likely limit their contribution to future biogas production. Second, there are streams not being considered in present estimates for biogas production although they have the proper characteristics.

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Biocrude production and heavy metal migration during hydrothermal liquefaction of swine manure

Cited by 80 publications

References 48 publications

Hydrothermal conversion of anaerobic wastewater fed microalgae: effects of reaction temperature on products distribution and biocrude properties

Hydrothermal conversion of anaerobic wastewater fed microalgae: effects of reaction temperature on products distribution and biocrude properties

A synergistic use of microalgae and macroalgae for heavy metal bioremediation and bioenergy production through hydrothermal liquefaction

Can Multiple Uses of Biomass Limit the Feedstock Availability for Future Biogas Production? An Overview of Biogas Feedstocks and Their Alternative Uses

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