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Biswas B, Adhikari S, Jahromi H, Ammar M, Baltrusaitis J, Torbert A, Linhoss J, Lamba J. Magnesium doped biochar for simultaneous adsorption of phosphate and nitrogen ions from aqueous solution. Chemosphere 2024; 358:142130. [PMID: 38685320 DOI: 10.1016/j.chemosphere.2024.142130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/10/2024] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
Phosphorus (P) and Ammonium Nitrogen (N) are essential nutrients for plants and environmental stability. However, their excess in water causes eutrophication, damaging aquatic ecosystems. While adsorption is a promising solution, finding affordable and efficient adsorbents remains a challenge. In this study, magnesium (Mg), iron (Fe), and Mg/Fe doped biochars (BC) adsorbents were synthesized, and evaluated for adsorption of individual P and N and a P + N mixture from a solution and wastewater from a wastewater treatment plant. Compared to other adsorbents, Mg/BC showed excellent performance in adsorbing phosphorus (P) and ammonium nitrogen (N) from aqueous solutions. It demonstrated a large adsorption capacity of 64.65 mg/g and 62.50 mg/g from individual P and N solutions, and 30.3 mg/g and 27.67 mg/g from the P and N mixture solution, respectively. In addition, Mg/BC efficiently removed P and N from real-life wastewater. In the real wastewater, P and N removal efficiencies reached 88.30% and 59.36%, respectively. Kinetics analysis revealed that the pseudo-second-order model accurately described the adsorption of phosphorus (P) and ammonium nitrogen (N) in all solutions. The adsorbent followed the monolayer-Langmuir isotherm for N ions and the multilayer-Freundlich isotherm for P, indicating efficient adsorption processes. Thermodynamic experiments indicated that the adsorption of P and N was not only feasible but also occurred spontaneously in a natural manner. This study revealed that the strategic modification of biochar plays a crucial role in advancing effective wastewater treatment technologies designed for nutrient removal.
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Affiliation(s)
- Bijoy Biswas
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL, 36849, USA; Center for Bioenergy and Bioproducts, 519 Devall Drive, Auburn University, Auburn, AL, 36849, USA
| | - Sushil Adhikari
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL, 36849, USA; Center for Bioenergy and Bioproducts, 519 Devall Drive, Auburn University, Auburn, AL, 36849, USA.
| | - Hossein Jahromi
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL, 36849, USA; Center for Bioenergy and Bioproducts, 519 Devall Drive, Auburn University, Auburn, AL, 36849, USA
| | - Mohamed Ammar
- Department of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, PA, 18015, USA
| | - Jonas Baltrusaitis
- Department of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, PA, 18015, USA
| | - Allen Torbert
- National Soil Dynamics Laboratory, United States Department of Agriculture-Agriculture Research Service, Auburn, AL, 36832, USA
| | - John Linhoss
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL, 36849, USA
| | - Jasmeet Lamba
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL, 36849, USA
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Biswas B, Sakhakarmy M, Rahman T, Jahromi H, Adhikari S, Krishna BB, Bhaskar T, Baltrusaitis J, Eisa M, Kouzehkanan SMT, Oh TS. Selective production of phenolic monomer via catalytic depolymerization of lignin over cobalt-nickel-zirconium dioxide catalyst. Bioresour Technol 2024; 398:130517. [PMID: 38437961 DOI: 10.1016/j.biortech.2024.130517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/06/2024]
Abstract
The utilization of lignin, an abundant and renewable bio-aromatic source, is of significant importance. In this study, lignin oxidation was examined at different temperatures with zirconium oxide (ZrO2)-supported nickel (Ni), cobalt (Co) and bimetallic Ni-Co metal catalysts under different solvents and oxygen pressure. Non-catalytic oxidation reaction produced maximum bio-oil (35.3 wt%), while catalytic oxidation significantly increased the bio-oil yield. The bimetallic catalyst Ni-Co/ZrO2 produced the highest bio-oil yield (67.4 wt%) compared to the monometallic catalyst Ni/ZrO2 (59.3 wt%) and Co/ZrO2 (54.0 wt%). The selectively higher percentage of vanillin, 2-methoxy phenol, acetovanillone, acetosyringone and vanillic acid compounds are found in the catalytic bio-oil. Moreover, it has been observed that the bimetallic Co-Ni/ZrO2 produced a higher amount of vanillin (43.7% and 13.30 wt%) compound. These results demonstrate that the bimetallic Ni-Co/ZrO2 catalyst promotes the selective cleavage of the ether β-O-4 bond in lignin, leading to a higher yield of phenolic monomer compounds.
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Affiliation(s)
- Bijoy Biswas
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Manish Sakhakarmy
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Tawsif Rahman
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Hossein Jahromi
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Sushil Adhikari
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA.
| | - Bhavya B Krishna
- Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India
| | - Thallada Bhaskar
- Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India
| | - Jonas Baltrusaitis
- Department of Chemical and Biomolecular Engineering, Lehigh University, Pennsylvania 18015, USA
| | - Mohamed Eisa
- Department of Chemical and Biomolecular Engineering, Lehigh University, Pennsylvania 18015, USA
| | | | - Tae-Sik Oh
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA
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Jahromi H, Reynolds A, Stoehr J, Whitney N, Ettner R. IMPROVING ACCESS TO CARE AND CONSENT FOR TRANSGENDER AND GENDER DIVERSE YOUTH IN THE UNITED STATES. Georgian Med News 2024:102-103. [PMID: 38501629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Gender-affirming care (GAC) aims to benefit transgender and gender diverse (TGD) youth. GAC includes access to mental health, medical care, and surgical interventions. However, access to GAC and the youth's ability to consent to GAC is frequently contested. This editorial reviews access to care for TGD youth and discusses perspectives on youth consent for GAC. Pertinent challenges include the ability to provide informed consent within current medical and legal frameworks, mental health and parental concerns, and the long-term effects of GAC. Further research, advocacy, and patient education are warranted to ensure safe access to GAC for TGD youth.
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Affiliation(s)
- H Jahromi
- 1Department of Plastic and Reconstructive Surgery, Temple University Medical Center, Philadelphia, Pennsylvania, United States
| | - A Reynolds
- 2University of Chicago Medicine, Chicago, Illinois, United States
| | - J Stoehr
- 3Department of Plastic and Reconstructive Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - N Whitney
- 4Rush Medical College, Rush University Medical Center, Chicago, Illinois, United States
| | - R Ettner
- 5New Health Foundation Worldwide, Evanston, Illinois, United States
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Biswas B, Rahman T, Sakhakarmy M, Jahromi H, Eisa M, Baltrusaitis J, Lamba J, Torbert A, Adhikari S. Phosphorus adsorption using chemical and metal chloride activated biochars: Isotherms, kinetics and mechanism study. Heliyon 2023; 9:e19830. [PMID: 37810020 PMCID: PMC10559209 DOI: 10.1016/j.heliyon.2023.e19830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/16/2023] [Accepted: 09/03/2023] [Indexed: 10/10/2023] Open
Abstract
Efficient treatment of nutrient-rich wastewater is of paramount importance for protecting the ecosystem. In this work, an efficient, abundant, and eco-friendly adsorbent was derived from biochar and employed for phosphorus (P) adsorption. The key factors influencing the P removal efficiency of the activated biochar, including P concentration, pH, dosage, temperature, adsorption time, and influence of co-existing ion type, were investigated. Maximum P adsorption percentage (100%) was obtained with 10 mg/L and zinc chloride activated biochar (BC-Zn) compared to the other activated biochars. Results show that by increasing the P concentration from 5 to 200 mg/L, the phosphorus adsorption capacity increases from 0.13 to 10.4 mg/g biochar. Isotherms and kinetic studies further show that the P adsorption follows the Langmuir and quasi-second-order kinetic models. The mechanistic investigation demonstrated that P adsorption occurred by precipitation reaction. Furthermore, P desorption has been studied at different time intervals to understand the P release rate after adsorption.
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Affiliation(s)
- Bijoy Biswas
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
- Center for Bioenergy and Bioproducts, 519 Devall Drive, Auburn University, Auburn, AL 36849, USA
| | - Tawsif Rahman
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Manish Sakhakarmy
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Hossein Jahromi
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
- Center for Bioenergy and Bioproducts, 519 Devall Drive, Auburn University, Auburn, AL 36849, USA
| | - Mohamed Eisa
- Department of Chemical and Biomolecular Engineering, Lehigh University, USA
| | - Jonas Baltrusaitis
- Department of Chemical and Biomolecular Engineering, Lehigh University, USA
| | - Jasmeet Lamba
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
| | - Allen Torbert
- National Soil Dynamics Laboratory, United States Department of Agriculture-Agriculture Research Service, Auburn, AL 36832, USA
| | - Sushil Adhikari
- Biosystems Engineering Department, 200 Corley Building, Auburn University, Auburn, AL 36849, USA
- Center for Bioenergy and Bioproducts, 519 Devall Drive, Auburn University, Auburn, AL 36849, USA
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Jahromi H, Horen S, Ho K, Tran E, Roth A, Schechter L. PATHOLOGIC FINDINGS IN GENDER-AFFIRMING MASTECTOMY: A SYSTEMATIC REVIEW. Georgian Med News 2022:6-12. [PMID: 36780614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Following increased cultural awareness, expanded access to care, and decreased stigmatization, the number of transgender individuals seeking gender affirmation surgery such as gender-affirmation mastectomy (GAM) continues to rise. While post-mastectomy breast tissue is often sent for pathologic evaluation, few studies address the utility and standardization of this practice. This literature review evaluates the pathology findings in GAM specimens reported in the medical literature. A systematic review following PRISMA guidelines was performed to evaluate all medical publications related to pathology reports following GAM. The overall type and incidence of benign and malignant breast lesions were analyzed to elucidate which patient characteristics significantly affect the pathology findings. Overall, eight of 488 identified studies met inclusion criteria (1278 patients). The incidence of pre-malignant lesions was 2.42%, including flat epithelial atypia (0.08%), atypical hyperplasia (0.23%), atypical ductal hyperplasia (1.33%), atypical lobular hyperplasia (0.39%), and lobular carcinoma in situ (0.39%).Patient age, hormonal therapy, and family / patient history of breast cancer were inconsistently reported among included studies. Lack of standardized pathologic classification did not permit further statistical analysis. Although patients who undergo GAM are unlikely to have premalignant or malignant findings on breast pathology examination, pathologic evaluation of breast tissue remains common practice. Additional studies, which include a standardized method of pathologic evaluation, are necessary before practice guidelines can be recommended.
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Affiliation(s)
- H Jahromi
- Division of Plastic and Reconstructive Surgery, Temple University Hospitals, Philadelphia, PA, USA
| | - S Horen
- Division of Plastic and Reconstructive Surgery, Rush University Medical Center, Chicago, IL, USA
| | - K Ho
- Rosalind Franklin University of Medicine & Science, Chicago, IL, USA
| | - E Tran
- Rosalind Franklin University of Medicine & Science, Chicago, IL, USA
| | - A Roth
- Rosalind Franklin University of Medicine & Science, Chicago, IL, USA
| | - L Schechter
- Division of Plastic and Reconstructive Surgery, Rush University Medical Center, Chicago, IL, USA
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Wang P, Tyndall S, Rahman T, Roy P, Jahromi H, Adhikari S, Boersma M. Sorption and recovery of phenolic compounds from aqueous phase of sewage sludge hydrothermal liquefaction using bio-char. Chemosphere 2022; 287:131934. [PMID: 34478966 DOI: 10.1016/j.chemosphere.2021.131934] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Bio-char, a by-product of thermochemical conversion processes, has a great potential in phenolic compounds sorption from the waste aqueous phase produced from the hydrothermal liquefaction (HTL) process while being a low-cost sorbent. This study investigated the effect of temperature, pH, bio-char concentration, and mixing speed on two types of bio-char sorption of phenolic compounds using Taguchi's design of experiment and response surface method. Isothermal kinetics and thermodynamic properties were also evaluated to explain the sorption mechanism. The experimental results were well described by the pseudo-second-order kinetic model for both types of bio-char. The Langmuir isotherm model was found to be more suitable at high sorption temperatures, while the Freundlich isotherm model was better at low temperatures. Finally, the alkaline desorption and regeneration experiments were examined, and the eluents with phenolic compounds were characterized using a liquid chromatography-mass spectrometer.
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Affiliation(s)
- Pixiang Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Sarah Tyndall
- Department of Biosystems Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Tawsif Rahman
- Department of Biosystems Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Poulami Roy
- Department of Biosystems Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Hossein Jahromi
- Department of Biosystems Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Sushil Adhikari
- Department of Biosystems Engineering, Auburn University, Auburn, AL, 36849, USA; Center for Bioenergy and Bioproducts, Auburn University, Auburn, AL, 36849, USA.
| | - Melissa Boersma
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL, 36849, USA
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Jahromi R, Mogharab V, Jahromi H, Avazpour A. Synergistic effects of anionic surfactants on coronavirus (SARS-CoV-2) virucidal efficiency of sanitizing fluids to fight COVID-19. Food Chem Toxicol 2020; 145:111702. [PMID: 32860861 PMCID: PMC7448729 DOI: 10.1016/j.fct.2020.111702] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/09/2020] [Accepted: 08/19/2020] [Indexed: 11/26/2022]
Abstract
Our surrounding environment, especially often-touched contaminated surfaces, plays an important role in the transmission of pathogens in society. The shortage of effective sanitizing fluids, however, became a global challenge quickly after the coronavirus disease-19 (COVID-19) outbreak in December 2019. In this study, we present the effect of surfactants on coronavirus (SARS-CoV-2) virucidal efficiency in sanitizing fluids. Sodium dodecylbenzenesulfonate (SDBS), sodium laureth sulfate (SLS), and two commercial dish soap and liquid hand soap were studied with the goal of evaporation rate reduction in sanitizing liquids to maximize surface contact time. Twelve fluids with different recipes composed of ethanol, isopropanol, SDBS, SLS, glycerin, and water of standardized hardness (WSH) were tested for their evaporation time and virucidal efficiency. Evaporation time increased by 17-63% when surfactant agents were added to the liquid. In addition, surfactant incorporation enhanced the virucidal efficiency between 15 and 27% according to the 4-field test in the EN 16615:2015 European Standard method. Most importantly, however, we found that surfactant addition provides a synergistic effect with alcohols to inactivate the SARS-CoV-2 virus. This study provides a simple, yet effective solution to improve the virucidal efficiency of commonly used sanitizers.
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Affiliation(s)
- Reza Jahromi
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA.
| | - Vahid Mogharab
- Department of Pediatrics, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Hossein Jahromi
- Biosystems Engineering Department, Auburn University, Auburn, AL, 36849, USA
| | - Arezoo Avazpour
- School of Medicine, Azad University of Mashhad, Mashhad, Iran
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Harun K, Adhikari S, Jahromi H. Hydrogen production via thermocatalytic decomposition of methane using carbon-based catalysts. RSC Adv 2020; 10:40882-40893. [PMID: 35519216 PMCID: PMC9057708 DOI: 10.1039/d0ra07440c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/21/2020] [Indexed: 11/21/2022] Open
Abstract
Thermocatalytic decomposition (TCD) of methane is one of the most effective methods for pure hydrogen production. Catalysts were selected for TCD of methane in this study to utilize biochar as a catalyst. Among these catalysts, two catalysts (named activated biochar (AB) and heat-treated biochar (HB)) were prepared from Douglas fir, whereas the other four were prepared using commercial activated carbon and zeolite with and without doping ruthenium metal. The catalysts were characterized using XRD, SEM imaging, TEM, H2-TPR, and BET specific surface area and pore size analysis. The Ru doped commercial activated carbon catalyst (Ru–AC) was deactivated continuously during a 60 h reaction run, whereas AB exhibited comparatively stable methane conversion up to 60 h. The methane conversion was 21% for Ru–AC and 51% for AB after 60 h of reaction time at 800 °C. The very high surface area of AB (∼3250 m2 g−1) and its microporosity compared to other catalysts could have resulted in resistance against rapid deactivation. Furthermore, carbon nanotube by-products were observed in TEM images of solid residues that could form due to the presence of alkali metals in the biochar. Carbon nanotube formation could contribute significantly to the extended life of AB. Methane decomposition over a carbon supported Ru catalyst (Ru–AC) and activated biochar (AB) for hydrogen production.![]()
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Affiliation(s)
- Khalida Harun
- Department of Biosystems Engineering
- Auburn University
- Auburn
- USA
| | - Sushil Adhikari
- Department of Biosystems Engineering
- Auburn University
- Auburn
- USA
- Center for Bioenergy and Bioproducts
| | - Hossein Jahromi
- Department of Biosystems Engineering
- Auburn University
- Auburn
- USA
- Center for Bioenergy and Bioproducts
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Affiliation(s)
- Foster A. Agblevor
- Department of Biological Engineering Utah State University 4105 Old Main Hill Logan UT 84322-4105 USA
| | - Hossein Jahromi
- Department of Biological Engineering Utah State University 4105 Old Main Hill Logan UT 84322-4105 USA
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Jahromi H, Agblevor FA. Hydrodeoxygenation of Aqueous-Phase Catalytic Pyrolysis Oil to Liquid Hydrocarbons Using Multifunctional Nickel Catalyst. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02807] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Hossein Jahromi
- USTAR Bioenergy Center, Department of Biological Engineering, Utah State University, Logan, Utah 84322, United States
| | - Foster A. Agblevor
- USTAR Bioenergy Center, Department of Biological Engineering, Utah State University, Logan, Utah 84322, United States
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