Academic literature on the topic 'Hydrothermal pre-treatment (HTP)'

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Journal articles on the topic "Hydrothermal pre-treatment (HTP)"

1

Karan, Hakan, Renée de Boeck, John Roles, Ben Hankamer, and Ian L. Ross. "Hydrothermal pre-treatment coupled with urea solubilisation enables efficient protein extraction from microalgae." Green Chemistry 21, no. 23 (2019): 6361–71. http://dx.doi.org/10.1039/c9gc03120k.

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2

Gong, Lei, Xiaoqi Yang, Zaizhao Wang, Jun Zhou, and Xiaogang You. "Impact of hydrothermal pre-treatment on the anaerobic digestion of different solid–liquid ratio sludges and kinetic analysis." RSC Advances 9, no. 33 (2019): 19104–13. http://dx.doi.org/10.1039/c9ra01662g.

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3

Park, Seyong, Seong Kuk Han, Eunhey Song, Ho Kim, Moonil Kim, and Wonbae Lee. "Effect of hydrothermal pre-treatment on physical properties and co-digestion from food waste and sewage sludge mixture." Waste Management & Research 38, no. 5 (January 23, 2020): 546–53. http://dx.doi.org/10.1177/0734242x19897123.

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Anaerobic digestion (AD) is generally considered to be an economic and environmentally friendly technology for treating waste activated sludge, but has some limitations, such as the time it takes for the sludge to be digested and also the ineffectiveness of degrading the solids. Various pre-treatment technologies have been suggested to overcome these limitations and to improve the biogas production rate by enhancing the hydrolysis of organic matter. This paper studies the use of hydrothermal pre-treatment (HTP) for a food waste and sewage sludge mixture (FW–SS mixture) as pre-treatment of co-digestion. The results of the capillary suction time, time to filter, and particle size decreased with increasing HTP temperature. These results of the assessment that was conducted in this study confirm that the HTP process indeed modifies the physical properties of the FW–SS mixture to enhance the solubilization of organic solids. A maximum increase in biogas production of 50% is achieved with a HTP temperature of 140oC. These findings show that to achieve high conversion efficiency, an accurately designed pre-treatment step must be included in the overall AD process for wastewater treatment.
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4

Park, Seyong, Young-Man Yoon, Seong Kuk Han, Daegi Kim, and Ho Kim. "Effect of hydrothermal pre-treatment (HTP) on poultry slaughterhouse waste (PSW) sludge for the enhancement of the solubilization, physical properties, and biogas production through anaerobic digestion." Waste Management 64 (June 2017): 327–32. http://dx.doi.org/10.1016/j.wasman.2017.03.004.

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5

Bensaad, Dhiya Eddine, Mohammed Saleh, Khalid Ismail, and Youngseung Lee. "Recent Advances in Physical, Enzymatic, and Genetic Modifications of Starches." Jordan Journal of Agricultural Sciences 18, no. 3 (September 1, 2022): 245–58. http://dx.doi.org/10.35516/jjas.v18i3.474.

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The current review presents the potential physical modification devised into thermal which includes pre-gelatinization and hydrothermal processing (i.e., annealing (ANN) and heat-moisture treatment (HMT)) and nonthermal modifications (i.e., high-pressure processing (HPP), micronization, ultrasonication, and pulsed electric field (PEF)). Rather than physical modification; enzymatic modification by single enzyme treatment, debranching enzymes, and multienzyme synergetic treatment was discussed. Genetic modification was also discussed as a potential starch modification for better utilization of starch.
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6

Kakar, Farokh Laqa, Steven N. Liss, and Elsayed Elbeshbishy. "Differential impact of acidic and alkaline conditions on hydrothermal Pre-treatment, fermentation and anaerobic digestion of sludge." Water Science and Technology, November 11, 2022. http://dx.doi.org/10.2166/wst.2022.368.

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Abstract Anaerobic digestion and fermentation processes in wastewater sludge treatment are limited by several factors, including the slow breakdown of complex organic matter and solubilization of solids. In this study, thermochemical pretreatment of TWAS using high temperature (>170 °C) was investigated to understand the impact of the pretreatment on the volatile fatty acids (VFA) production and its fractions during the fermentation process. Furthermore, the influence the thermochemical pretreatment on sludge disintegration and methane recovery was investigated. A range of acidic and alkaline conditions over the pH range of 4.5 to 10 was examined. Sludge (pH adjusted) was exposed to hydrothermal pre-treatment (HTP) at a temperature of 170 °C for 30 minutes. Pretreated samples were then subjected to batch fermentation and methane potential tests that revealed that acidic and alkaline conditions resulted in increased sludge solubilization during HTP. Acidic conditions were associated with a higher VFA production yield of up to 185 mg COD/g TCOD. Alkaline conditions led to a higher methane production yield where the maximum yield (276 mL CH4/g TCOD added) was found to occur at pH 10. Therefore, alkaline sludge used for fermentation has shown technical and economic feasibility for sludge carbon recovery.
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