Treatment of hormones in wastewater from the pharmaceutical industry by continuous flow supercritical water technology

Ribeiro, T. S.; Mourão, Lucas Clementino; Souza, Guilherme Botelho Meireles de; Dias, Isabela Milhomem; Andrade, L.A.; Souza, Paula L.M.; Cardozo‐Filho, Lúcio; Oliveira, Guilherme R.; Oliveira, S.; Alonso, Christian Gonçalves

doi:10.1016/j.jece.2021.106095

Cited by 20 publications

(7 citation statements)

References 44 publications

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“…On the other hand, at lower temperatures, an increase in the feed flow rate showed a slight tendency to decrease the analyzed response. The greater influence of temperature than the feed flow rate in relation to hydrogen production was also observed in other works reported in the literature [30,35,36]. The effects described by the regression equation (Equation ( 1)) were plotted into a response surface graph for easier comprehension.…”

Section: Scw Process Optimization: Effect Of the Operational Parametersmentioning

confidence: 55%

“…On the other hand, at lower temperatures, an increase in the feed flow rate showed a slight tendency to decrease the analyzed response. The greater influence of temperature than the feed flow rate in relation to hydrogen production was also observed in other works reported in the literature [30,35,36]. To evaluate how the hydrogen production relates to the amount of biomass processed, the ratio between the volume of H2 produced and the mass of carbon fed into the SCW reactor was calculated.…”

Section: Scw Process Optimization: Effect Of the Operational Parametersmentioning

confidence: 62%

“…The hydrothermal gasification process was carried out in a continuous flow tubular reactor (Inconel 625 alloy) with a length of 30 cm and an internal diameter of 1.1 cm. The reaction system was previously reported in detail by Ribeiro et al (2021) and Dias et al (2023) [30,31], as can be seen in Figure 1. In short, the feedstock sample was pumped into the system by a high-pressure isocratic pump (Agilent Technologies 1260).…”

Section: Reaction Systemmentioning

confidence: 99%

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Continuous Hydrogen Production via Hydrothermal Gasification of Biodiesel Industry Wastewater: Experimental Optimization and Energy Integration Simulation

Teixeira,

Dias,

Mourão

et al. 2023

Water

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This study reports the continuous production of H2 from the wastewater effluent of the biodiesel industry in a medium containing water under supercritical conditions. The effects of temperature and feed flow rate on the generation of hydrogen were evaluated and optimized. At a temperature of 700 °C and a 17.5 mL/min feed flow, a total gas flow of 5541 NmL/min was achieved. Among all identified gases, hydrogen represented the highest molar fraction of 73%. Under optimized conditions, a H2 yield of 357 NmL/geffluent feed was observed. The experimental results indicate a significant increase in the H2 production at the highest experimented temperatures. On the other hand, the feed flow only slightly influenced the process within the assessed range but showed a tendency to increase the H2 production at the highest values. Finally, information on energy efficiency optimization and scale-up are presented, and at the same time, different designs for industrial implementation of the hydrothermal gasification process are proposed.

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Section: Scw Process Optimization: Effect Of the Operational Parametersmentioning

confidence: 55%

“…On the other hand, at lower temperatures, an increase in the feed flow rate showed a slight tendency to decrease the analyzed response. The greater influence of temperature than the feed flow rate in relation to hydrogen production was also observed in other works reported in the literature [30,35,36]. To evaluate how the hydrogen production relates to the amount of biomass processed, the ratio between the volume of H2 produced and the mass of carbon fed into the SCW reactor was calculated.…”

Section: Scw Process Optimization: Effect Of the Operational Parametersmentioning

confidence: 62%

Section: Reaction Systemmentioning

confidence: 99%

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Continuous Hydrogen Production via Hydrothermal Gasification of Biodiesel Industry Wastewater: Experimental Optimization and Energy Integration Simulation

Teixeira,

Dias,

Mourão

et al. 2023

Water

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“…In their results, the technology was demonstrated to reduce 88.4% of the initial total organic carbon (TOC) value, and the presence in gas phase of H 2 , CH 4 , CO, CO 2 , C 2 H 6 , and C 2 H 4 , which could be used to produce renewable energy. Moreover, phytotoxicity assays demonstrated that there was no risk of the treated samples with respect to the germination of Cucumis sativus seeds [125]. Another technology that has been used is direct contact membrane distillation, which can be used to treat raw surface water contaminated with phenolic compounds [126].…”

Section: Organic Contaminantsmentioning

confidence: 99%

A Current Review of Water Pollutants in American Continent: Trends and Perspectives in Detection, Health Risks, and Treatment Technologies

Warren-Vega

Campos-Rodríguez

Zárate-Guzmán

et al. 2023

IJERPH

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Currently, water pollution represents a serious environmental threat, causing an impact not only to fauna and flora but also to human health. Among these pollutants, inorganic and organic pollutants are predominantly important representing high toxicity and persistence and being difficult to treat using current methodologies. For this reason, several research groups are searching for strategies to detect and remedy contaminated water bodies and effluents. Due to the above, a current review of the state of the situation has been carried out. The results obtained show that in the American continent a high diversity of contaminants is present in the water bodies affecting several aspects, in which in some cases, there exists alternatives to realize the remediation of contaminated water. It is concluded that the actual challenge is to establish sanitation measures at the local level based on the specific needs of the geographical area of interest. Therefore, water treatment plants must be designed according to the contaminants present in the water of the region and tailored to the needs of the population of interest.

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“…Due to the fact that estrogens are quite resistant to classical methods of remediation [37], new water remediation processes are needed for effective removal of these compounds from wastewater [51,52]. One of the promising methods of estrogens removal from aqueous solutions seem to be enzymatic, oxidative conversion supported by adsorption [80].…”

Section: Introductionmentioning

confidence: 99%

Inorganic Oxide Systems as Platforms for Synergistic Adsorption and Enzymatic Conversion of Estrogens from Aqueous Solutions: Mechanism, Stability and Toxicity Studies

et al. 2022

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Treatment of hormones in wastewater from the pharmaceutical industry by continuous flow supercritical water technology

Cited by 20 publications

References 44 publications

Continuous Hydrogen Production via Hydrothermal Gasification of Biodiesel Industry Wastewater: Experimental Optimization and Energy Integration Simulation

Continuous Hydrogen Production via Hydrothermal Gasification of Biodiesel Industry Wastewater: Experimental Optimization and Energy Integration Simulation

A Current Review of Water Pollutants in American Continent: Trends and Perspectives in Detection, Health Risks, and Treatment Technologies

Inorganic Oxide Systems as Platforms for Synergistic Adsorption and Enzymatic Conversion of Estrogens from Aqueous Solutions: Mechanism, Stability and Toxicity Studies

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