Hydrothermal carbonization of olive pomace and determining the environmental impacts of post-process products

Yay, Aliye Suna Erses; Birinci, Bilge; Açıkalın, Sebile; Yay, Kubilay

doi:10.1016/j.jclepro.2021.128087

Cited by 42 publications

(24 citation statements)

References 71 publications

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“…Table shows that the HTC process has a negative impact mainly on marine aquatic ecotoxicity, which may be related to the choice of fuel. The second negative impact is reflected in global warming (GWP100), which is similar to the results of previous studies …”

Section: Resultssupporting

confidence: 90%

“…By applying mass balance and engineering calculations, the power worked out for each step is determined by utilizing the equations by Piccinno et al The interpretation covered the presentation and evaluation of the results and the uncertainty analysis. The reliability and stability of the consequences were checked using assumptions, variations in methods and data . Since the focus of the inquiry is not the energy consumption and transportation of the equipment, it was assumed that all the main electricity used was coal and that the distance of the goods transported is 25 km…”

Section: Methodsmentioning

confidence: 99%

“…The second negative impact is reflected in global warming (GWP100), which is similar to the results of previous studies. 38 Since each parameter modeled, assumed, or estimated is subject to uncertainty, an uncertainty analysis should be performed to assess the robustness of the results. 37,63 As seen in Table 2, the impact of energy use on the environmental impact during HTC treatment proved to be critical for the system, and for the experimental subjects of this study, HC160 and HC280 were the minimum and maximum values for the HTC process.…”

Section: Effects Of Hydrothermalmentioning

confidence: 99%

“…The reliability and stability of the consequences were checked using assumptions, variations in methods and data. 38 Since the focus of the inquiry is not the energy consumption and transportation of the equipment, it was assumed that all the main electricity used was coal and that the distance of the goods transported is 25 km. 39…”

Section: Experimental Analysismentioning

confidence: 99%

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A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

Chen

Jiang

2022

ACS EST Eng.

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The conversion of waste biomass to hydrochar by hydrothermal carbonation (HTC) treatment is a promising technology for waste management, and the thorough utilization of hydrochar can reduce the environmental load. Herein, a life cycle assessment (LCA) was performed to evaluate hydrochar as a carbon source in wastewater plants (WWTPs) and subsequently soil remediation. The simulated combined utilization of hydrochar showed that Bacillus subtilis may utilize the dissolved organic matter (DOM) of hydrochar that contains many aliphatic organic substances, and the microbially treated hydrochar retains most of the nutrients for crop growth. LCA shows that hydrochar could avoid 28% of the environmental load of WWTPs in terms of global warming (GWP100) and 47% of the environmental load of freshwater aquatic ecotoxicity and could reduce 54% of the environmental impact of soil fertilization in terms of eutrophication and 34% of GWP100 in soil remediation. Furthermore, LCA results indicate that hydrochar derived at 160 °C has the lowest environmental load in the combined utilization. This study proposes an optimized utilization of biomass wastes and extends the life cycle of derived hydrochar by experimental determination and the LCA method.

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Section: Resultssupporting

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Section: Effects Of Hydrothermalmentioning

confidence: 99%

Section: Experimental Analysismentioning

confidence: 99%

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A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

Chen

Jiang

2022

ACS EST Eng.

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“…Therefore, the research on converting food wastes into value-added products through various methods to recover value from FPW has become increasingly important. Those methods include thermal pyrolysis, hydrothermal treatment, and active substance extraction. − Thermal pyrolysis refers to the process of breaking the macromolecules of organic components in FPW without oxygen or low level of oxygen to produce small molecule gas, tar, liquids, and residue. This technology can convert the organic components in FPW into liquid petroleum like bio-oil with less heavy metal and dioxin pollutants.…”

Section: Traditional Treatment Of Food Processing Wastementioning

confidence: 99%

Valorization of Food Processing Waste to Produce Valuable Polyphenolics

Chang

Shi

et al. 2022

J. Agric. Food Chem.

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Traditional incineration and landfill of food processing waste (FPW) have polluted the environment and underutilized valuable bioactive compounds, including polyphenols in food waste. As one of the most widely occurring compounds in the FPW, polyphenols possess high utilization value in many fields such as human health, energy, and environmental protection. Extracting polyphenols directly from FPW can maximize the value of polyphenols and avoid waste of resources. However, traditional polyphenol extraction methods mostly use the Soxhlet extraction, infiltration, and impregnation method, consuming a large amount of organic solvent and suffering from long extraction time and low extraction efficiency. Emerging green extraction methods such as supercritical fluid extraction, ultrasonic-assisted extraction, microwave-assisted extraction, and other methods can shorten the extraction time and improve the solvent extraction efficacy, resulting in the green and safe recovery of polyphenols from FPW. In this paper, the traditional treatment methods of FPW waste and the application of polyphenols in FPW are briefly reviewed, and the traditional extraction methods and emerging green extraction methods of polyphenols in FPW are compared to obtain insight into the start-of-the-art extraction approaches.

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RETRACTED CHAPTER: Olive Pomace as a Source of Nutraceuticals

Hamimed

Chatti

2022

Food and Agricultural Byproducts as Important Source of Valuable Nutraceuticals

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Hydrothermal carbonization of olive pomace and determining the environmental impacts of post-process products

Cited by 42 publications

References 71 publications

A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

Valorization of Food Processing Waste to Produce Valuable Polyphenolics

RETRACTED CHAPTER: Olive Pomace as a Source of Nutraceuticals

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