Biomass from grey wastewater featuring iron oxide for hydrogen production via hydrothermal gasification with potassium hydroxide catalyst: investigation study.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος:	Biomass from grey wastewater featuring iron oxide for hydrogen production via hydrothermal gasification with potassium hydroxide catalyst: investigation study.
Συγγραφείς:	Karthik K; Department of Mechanical Engineering, Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology, Avadi, Chennai, 600 062, India., Jain T; Department of Mechanical Engineering, GLA University, Mathura, Uttar Pradesh, 281406, India., Sailaja V; Department of Electronics and Communication Engineering, Pragati Engineering College, ADB Road, Surampalem, Near Peddapuram, Kakinada District, Andhra Pradesh, 533437, India., Dhawan A; Centre of Research Impact and Outcome, Chitkara University, Rajpura, Punjab, 140417, India., Saravanan A; Department of Mechanical Engineering, Aditya University, Surampalem, Andhra Pradesh, 533437, India., Minhas D; Sharda School of Engineering and Sciences, Sharda University, Greater Noida, UP, India., Shree Jayaram K; Innovation & Incubation Centre, Department of Research, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, 600078, India., Maranan R; Division of Research and Development, Lovely Professional University, Jalandhar - Delhi G.T. Road, Phagwara, Punjab, India., Thirugnanasambandham T; Department of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, SIMATS, Chennai, Tamil Nadu, 602105, India., Sivanraju R; Department of Mechanical Engineering, Faculty of Manufacturing, Institute of Technology, Hawassa University, Awasa, Ethiopia. rajkumar@hu.edu.et.
Πηγή:	Scientific reports [Sci Rep] 2026 May 12; Vol. 16 (1). Date of Electronic Publication: 2026 May 12.
Τύπος έκδοσης:	Journal Article
Γλώσσα:	English
Στοιχεία περιοδικού:	Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE
Imprint Name(s):	Original Publication: London : Nature Publishing Group, copyright 2011-
Ιατρικοί όροι (MeSH):	Hydrogen/metabolism , Hydrogen/chemistry , Ferric Compounds/chemistry , Potassium Compounds/chemistry , Wastewater/chemistry , Hydroxides/chemistry , Microalgae/growth & development , Microalgae/metabolism , Biomass*, Catalysis ; Temperature
Περίληψη:	The demand for alternative fuel is progressively increasing in various energy concerns due to pollution-free, improved energy, and better performance. The present innovation is to synthesize the hydrogen from the source of microalgae by using waste grey water. The varied percentages of iron oxide (Fe2O3) nanoparticles are integrated with grey water to enhance the specific growth of algae. The impact of Fe2O3 on the specific growth of microalgae is investigated. The highest growth of 0.98 μm/day is noted at 0.15% of Fe2O3, which is involved in further hydrogen production via the hydrothermal gasification process under different loading rates (0.05, 0.1, and 0.15 g/mL), varied gasification temperatures (500, 550, and 600 °C), and different concentrations (5, 10, and 15%) of potassium hydroxide (KOH) featured catalyst. The 0.2% concentration of Fe2O3 is recorded by the maximum specific growth of microalgae (0.98 µ/day). The effect of process parameters on functional behaviour, including molar fraction, hydrogen yield, gasification efficiency (GE), and hydrogen efficiency (HE), is evaluated. The system functioned at a 0.15 g/mL feedstock concentration with 600 °C, processing microalgae with 15% KOH catalyst action, yielding GE, HE, and lower heating values of 62.4%, 66.9%, and 8.4 MJ/Nm³. The higher processing temperature influences a superior hydrogen yield of 41.4 mol/kg. (© 2026. The Author(s).)
Competing Interests:	Declarations. Competing interests: The authors declare no competing interests. Ethics approval: This is an observational study. Biomass from grey wastewater featuring iron oxide for hydrogen production via hydrothermal gasification with potassium hydroxide catalyst: Investigation study: The Research Ethics Committee has confirmed that no ethical approval is required.
References:	J Environ Manage. 2019 May 1;237:545-551. (PMID: 30826635) Trends Biotechnol. 2013 Apr;31(4):233-9. (PMID: 23336995) Sci Total Environ. 2018 Jul 15;630:243-253. (PMID: 29477822) Appl Biochem Biotechnol. 2024 May;196(5):2728-2740. (PMID: 36692649) Environ Technol. 2019 Apr;40(9):1178-1184. (PMID: 29235928) Environ Res. 2021 Aug;199:111359. (PMID: 34022232) Environ Technol. 2004 Sep;25(9):997-1008. (PMID: 15515266) Ecotoxicol Environ Saf. 2024 Jan 15;270:115908. (PMID: 38171102) Sci Total Environ. 2016 May 1;551-552:706-11. (PMID: 26901745) Sci Total Environ. 2021 Oct 20;792:148479. (PMID: 34465066)
Contributed Indexing:	Keywords: Algae Growth; Catalyst; Gasification; Grey wastewater; Hydrogen; Iron oxide
Substance Nomenclature:	7YNJ3PO35Z (Hydrogen) 0 (Ferric Compounds) 0 (Potassium Compounds) 0 (Wastewater) 0 (Hydroxides) WZH3C48M4T (potassium hydroxide) 1K09F3G675 (ferric oxide)
Entry Date(s):	Date Created: 20260512 Date Completed: 20260712 Latest Revision: 20260813
Update Code:	20260813
PubMed Central ID:	PMC13358092
DOI:	10.1038/s41598-026-52926-5
PMID:	42120453
Βάση Δεδομένων:	MEDLINE

View record at Springer

Περιγραφή
ISSN:	2045-2322
DOI:	10.1038/s41598-026-52926-5